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CHEMICAL SAFETY REPORT
1
Chemical Safety Report
Legal name of applicants: Amphenol Limited, Amphenol Socapex, Souriau-Esterline,
ITT Cannon, Connecteurs Electriques Deutsch and
Tyco Electronics UK Ltd
Submitted by: Souriau-Esterline
Substance: Chromium trioxide, EC 215-607-8 and CAS 1333-82-0
Potassium dichromate, EC 231-906-6 and CAS 7778-50-9
Sodium dichromate, EC 234-190-3 and CAS 10588-01-9 / 7789-
12-0
Acids generated from chromium trioxide and their oligomers, EC
231-801-5 or 236-881-5 and CAS 7738-94-5 or 13530-68-2
Use title: Use-1: Industrial use of a mixture containing hexavalent chromium
compounds for the conversion of cadmium coated circular and
rectangular connectors in order to achieve a higher level of
performances than the requirements of international standards as
well as to withstand harsh environments and high safety
applications (such as in the military, aeronautic, aerospace,
mining, offshore and nuclear industries or for the application in
safety devices for road vehicles, rolling stock and vessels).
Use-2: Industrial use of a mixture containing hexavalent chromium
compounds in conversion coating and passivation of circular and
rectangular connectors in order to meet the requirements of
international standards and special requirements of industries
subject to harsh environments.
Use-3: Industrial use of a mixture containing chromium trioxide
for the etching of composite connectors used by industries subject
to harsh environments, to mainly ensure adhesive deposit to meet
the requirements of international standards.
Use number: Use-1 ; 2 & 3
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9. EXPOSURE ASSESSMENT
9.1. Introduction
The hexavalent chromium compounds are used in conversion coating
(subdivided in two uses) and for the etching of circular and rectangular connectors.
CMG’s application for authorisation therefore concerns three industrial uses of
hexavalent chromium as detailed in Table 16. These uses are located in six sites as
described in the following table:
Company Site (Town) Country
TE Connectivity Evreux (Connecteurs Electriques Deutsch) France (FR)
Hastings (Tyco Electronics UK Ltd) United Kingdom (UK)
Amphenol Thyez (Amphenol Socapex) France (FR)
Whitstable (Amphenol Limited) United Kingdom (UK)
Souriau - Esterline Champagné France (FR)
ITT Cannon Weinstadt Germany (DE)
Table 16: Location of activities covered in the Application for Authorisation
The three uses of the CMG’s authorisation dossier are described in Table 17
below and cover the activities of connectors for circular, rectangular and associated
accessory lines on aluminium, composite and steel substrates.
9.1.1. Overview of uses and Exposure Scenarios
CMG’s authorisation is composed of three uses that are described below.
Titles of identified uses Title of Exposure Scenario
Use 1
Industrial use of a mixture containing hexavalent chromium compounds for the conversion of cadmium coated circular and rectangular connectors in order to achieve a higher level of performances than the requirements of international standards as well as to withstand harsh environments and high safety applications (such as in the military, aeronautic, aerospace, mining, offshore and nuclear industries or for the application in safety devices for road vehicles, rolling stock and vessels).
ES1: Industrial use of hexavalent chromium in bath for the surface treatment of connectors.
Use 2
Industrial use of a mixture containing hexavalent chromium compounds in conversion coating and passivation of circular and rectangular connectors in order to meet the requirements of international standards and special requirements of industries subject to harsh environments.
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Titles of identified uses Title of Exposure Scenario
Use 3
Industrial use of a mixture containing chromium trioxide for the etching of composite connectors used by industries subject to harsh environments, to mainly ensure adhesive deposit to meet the requirements of international standards.
Table 17: Identified uses and Exposure Scenarios
The Exposure Scenario described covers the activities of the six sites (Evreux,
Hastings, Thyez, Whitstable, Weinstadt and Champagné).
9.1.1.1. Process explanation
This CSR discusses the use of hexavalent chromium in baths for the surface
treatment of connectors. As uses, parts treated, operating conditions and risk
management measures are similar, while differences are few and relate only to
concentration and other products present in the baths treatment, it was chosen to
assess exposure through one exposure scenario (as described in section 9). Ranges of
concentrations are however used to express the slight differences from one site to
another.
Presentation of baths treatment line
The surface treatment of connectors’ part is performed on bath treatment
lines. Connector parts are articles dipped in successive baths, including chromium
bath. This CSR focuses on the use of hexavalent chromium, consequently only baths
containing hexavalent chromium will be considered.
There are two types of treatment lines for two types of activities: manual or
automated dipping. The treatment lines for each site is presented on the following
figure:
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Figure 7: Treatment baths on the site of Amphenol Limited (for manual dipping)
Figure 8: Treatment line on the site of Amphenol Socapex (manual dipping)
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Figure 9: Manual treatment bath on the site of Souriau
Figure 10: Automated line on the site of Souriau
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Figure 11: Automated line with loading area on the site of Souriau
Figure 12: Automatic treatment line on the site of ITT Cannon
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Figure 13: Chromium bath on the site of ITT Cannon
Figure 14: Automatic treatment line on the site of Connecteurs Electriques Deutsch
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Figure 15: Chromium bath Tyco Electronics UK Ltd (manual treatment line)
All these treatment lines are composed of several baths, but a bath
containing hexavalent chromium is always followed by at least one rinsing bath.
On automated lines, the chromium bath is located on the treatment line and
far away from other activities which are not performed directly on the line. On these
treatment lines, there is a restricted area which permits workers to access the
treatment bath, in case of sampling, addition of mixture, drain or visual routine
control on the bath. When the automated line is operating, the connector parts are
fixed on the automated robot which immerses them in the successive baths. During
this operation, no workers are located next to the bath.
On manual lines, the workers handle a frame on which connector parts are
mounted or, depending on the part to be treated, placed into a small barrel. Workers
then use the frame or the barrel to manually dip the articles in the successive baths
treatment.
Some chromium baths feature internal exhaust ventilation. It could be defined as a
fixed capturing hood located in close proximity of and directed at the source of
emission. The global description is in accordance with the following figures.
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Figure 16: Internal local exhaust ventilation of baths
The efficiency of these ventilations is verified according to the flow calculations
recommended by INRS10 or in an equivalent approach.
Sampling of bath and lab analysis
A tiny amount (maximum 100 ml) of the mixture is transferred into small
vessels, in order to perform a titration of hexavalent chromium or pH measurements
on the solution contained in the bath.
The titration of hexavalent chromium or other analyses are performed in the
laboratory of the site. The laboratory is a separate room, next to the plating shop.
The lab operator is subject to exposure to hexavalent chromium only during these
tasks.
The pH measurement is a specific consideration because it can be performed
at the bath directly during the sampling, by using a portable pH meter, which the
platers just immerse into the solution. Consequently the pH measurement is
considered in the same contributing scenario with sampling activity.
Sampling and lab analysis concern all CMG members except ITT Cannon for
which the efficiency of the chromium mixture in the solution tank is judge on the
basis of the colour on the final article.
This task is considered in the exposure to hexavalent chromium. It is treated in this CSR in the Contributing Scenarios 2 & 3 (CS-2&3).
10 Cuves de traitement de surface. Guide pratique de ventilation. ED651. INRS, 2014.
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Drainage of baths
A waste treatment plant (or a specific container on the site of Amphenol
Limited) is located in a separate and dedicated room on the industrial site, for the
water treatment in an enclosed system. The treatment of liquid effluent is
considered in the environmental contributing scenario 1. When a chromium bath on
the plating line needs to be emptied, it is drained into the waste treatment plant by
using a pump and a valve located next to the bath. During this operation the
operator is located next to the bath for a maximum of 60 minutes. This is the total
duration of the transfer.
The waste system used during this task is completely closed. Therefore, there
is no possibility of exposure related to the transfer of hexavalent chromium. The
exposure considered during this task will be inhalation exposure due to the presence
of open chromium baths next to the worker.
This task is considered in the estimation of exposure to hexavalent chromium. It is treated in this CSR in the Contributing Scenario 4 (CS-4).
Visual control and maintenance operations
A visual routine control on the bath or maintenance operation can be
performed by one worker. In this case, the worker is on the restricted area.
Maintenance operations are operations involved directly on the installation. In both
cases of visual control or maintenance operation, there is no possibility of direct
exposure.
The exposure considered during these tasks will be inhalation exposure due
to the presence of open chromium baths next to the worker.
This task is considered in the estimation of exposure to hexavalent chromium. It is treated in this CSR in the Contributing Scenario 4 (CS-4).
Repackaging of hexavalent chromium
When hexavalent chromium is supplied in large containers, the volume of
product to add to the treatment bath cannot be accurately controlled at the bath if
poured directly from the large container. Thus, the quantity to be added to the bath
is transferred to a smaller recipient in order to quantify the amount of product
needed and facilitate the addition into the bath. This transfer is manually performed
by one worker and it can involve liquid or solid products. It is performed in a
separate and dedicated room. The risk management measures and operating
conditions described for this repackaging can differ between CMG members and
they are detailed in 3 different contributing scenarios.
On the site of Amphenol Socapex, the repackaging of powder is performed
once a year when a new stock is received on site. All the stock is directly repacked
during the same day in order to use the laboratory fume-cupboard (which would not
be available for a daily repacking). Thus, the repackaging is done by one specific
operator, made aware of the hazards of hexavalent chromium and equipped with all
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the necessary protective equipment. The powder is repackaged into small airtight
containers in order to avoid any contact with ambient air (it is a requirement for
storage).
On the site of Amphenol Limited, once a year, one of the 2 lab employees re-
package a big drum of solid chromium (VI) chemistry into smaller containers, which
are the correct weight for use in a bath. As for Amphenol Socapex, packaging it in
small ready-to-use pots keeps it in a better condition and stops the chemistry
deteriorating.
On the site of Souriau, workers use specific equipment dedicated to the
repacking of powder, just before the addition to the bath. This operation is
performed by a specific operator. Thus, as for Amphenol Socapex and Amphenol
Limited, the handling is done in a controlled way by a responsible member of the
staff. The powder is transferred form one large container to a small one behind local
ventilation which permits a form of encasing of the source of dust during the
transfer. Only the front side is open. This enclosing hood is designed as follows:
Figure 17: representation of the enclosing hood used for the repacking of powder on the site of Souriau
On the site of Amphenol limited, the transfer for weighing out and
repackaging of powder is performed in the specific chemical store. In this room,
there is a fan to provide an enhanced general ventilation and the operator wears
specific personal protective equipment (including specific mask) for this task because
it is identified as a task of high concern for the exposure to hexavalent chromium.
On the site of Amphenol Socapex the repackaging of liquid is performed once
a week before the addition into the bath. The repacking is made in small airtight
container in order to avoid any contact with ambient air.
This task is considered in the estimation of exposure to hexavalent chromium. It is treated in this CSR in the Contributing Scenarios 5, 6, 7 & 8 (CS-5,6,7&8).
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Manual addition of mixture to bath
The hexavalent chromium compound can have different forms: liquid or
solid, and in a mixture or as a pure material. It is added by one worker directly to the
chromium treatment bath by pouring it from the container as supplied or transferred
according to the condition described in the previous section.
The hexavalent chromium is diluted in the liquid contained in the bath. Thus,
the bath concentration of hexavalent chromium compound does not exceed 10%
(w/w). It will be considered as Minor (in the range of 5 to 10%) in this CSR.
This task is considered in the estimation of exposure to hexavalent chromium. It is treated in this CSR in the Contributing Scenario 9 (CS-9) for liquid products, and the
contributing scenario 10 (CS-10) for solid products.
Addition of liquid in bath via pumping system
Hexavalent chromium can be added in the bath using a closed system with a
flexible pipe and pumping system. This automated transfer into the bath involves
only liquid mixtures containing hexavalent chromium, it cannot involve solid forms
(mixtures or pure material).
The container of hexavalent chromium mixture is placed next to the
treatment bath. This container is opened, a pumping cane is placed into the
container opening and is submerged below the liquid surface. The pumping cane and
the container opening are close in diameter. The other end of the pumping system is
a flexible pipe which is submerged in the treatment bath. This transfer is considered
as a potential emission source if it is located in the breathing zone of an operator
located next to the container during the transfer, in order to control it.
This task is considered in the estimation of exposure to hexavalent chromium. It is treated in this CSR in the Contributing Scenario 11 (CS-11) for liquid products only.
Assembling and dismantling of connector parts
Before and after the dipping process performed on the treatment line,
connector parts must be placed on /in or attached and then removed from:
- a frame or a barrel, in the case of manual dipping,
- a structure which will be linked to the robot of the automated line.
Therefore, at the beginning and at the end of treating articles by immersion, workers
are handling the connector parts. This task is presented on the following figure:
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Connecteurs
Electriques
Deutsch
Tyco Electronics
UK Ltd
Figure 18: Handling of articles
This frame, barrel or structure is commonly called a jig. During the assembly
of connector parts on the jig, before the chromium treatment, the parts have not yet
been in contact with hexavalent chromium. Consequently, there is no possible
exposure to hexavalent chromium from handling these articles.
When removing connector parts from the structure after the treatment
process, the parts have been rinsed in water and further treated. Consequently, the
remaining hexavalent chromium on the article is included into a matrix composed of
the formation of oxidized surface of the article. Chromate is therefore contained in
this matrix, and cannot evaporate. Thus, for exposure by inhalation route, these
articles are not the main emission source of hexavalent chromium.
However, the inclusion of hexavalent chromium into a matrix does not
preclude the cutaneous route of exposure. Therefore, this exposure will be analysed
in a separate contributing scenario (CS-12).
There are two further considerations, depending on the plating shop
configuration:
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- When this task is performed at the extremity of the treatment line (in
the plating shop), workers can be subject to indirect exposure due to
the automated activity with open surface of chromium bath on the
treatment line. This exposure will be considered and included in the
contributing scenario 15 (CS-15). The additional time needed for this
operation will thus be considered. It is the case of TE connectivity on
the site of Evreux (Connecteurs Electriques Deutsch), on the site of
Hastings (Tyco Electronics UK Ltd), Souriau-Esterline, ITT Cannon and
Amphenol Limited.
- When this task is performed in a separate room, there is no
possibility of exposure via inhalation. It is the case of Amphenol
Socapex.
Dermal exposure to hexavalent chromium during this task will be treated in this CSR in the Contributing Scenario 12 (CS-12).
There is no direct inhalation exposure to hexavalent chromium during this task when it is performed next to the treatment line. However, indirect exposure due to the immersion in bath on the treatment line will be considered during this activity
in the Contributing Scenario 15 (CS-15).
Dipping connectors in treatment baths
Depending on the automatic or manual configuration of the treatment line, the
exposure will be considered differently.
For the automated treatment line, the dipping of connector parts in successive baths
treatment is automatically performed, and no operators are present next to these
baths. The robot which performs the dipping in baths on this treatment line is
launched and controlled from a steering console. This steering console is a few
meters away from the treatment line, in the same plating shop. The operator, who is
using the steering console, is indirectly exposed to hexavalent chromium. This
exposure is due to the automated activity on the treatment line via the exposure to
the ambient air of the plating shop, and is considered in the contributing scenarios
15 (CS-15).
For a manual treatment line (or exceptional manual operations), the dipping of
connector parts in successive treatment baths is performed by one worker located
immediately behind the bath (less than 1 metre). Exposure due to the presence of a
chromium bath or rinsing bath in the near field will be considered in the contributing
scenario 13 & 14 (CS-13 & 14).
This task is considered in the estimation of exposure to hexavalent chromium. It is treated in this CSR in the Contributing Scenario 15 (CS-15) for automated treatment
lines, and in the contributing scenario 13&14 (CS-13 & 14) for manual operations.
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Drying of connectors
Connector parts can be dried automatically on the treatment line (in this case
there is no intervention of workers), or just by placing the jig with connector parts in
a proofer. These tasks do not involved additional exposure for workers since the
potential emission source is confined and it is far away from the workers.
Furthermore, the main source of exposure considered in the ambient air of the
plating shop is the open chromium baths.
In the case of manual drying, it is performed by using an air gun. A jig of parts
is hung inside an extraction booth, so the process is done under extraction. It can be
presented as follow:
Figure 19: manual drying of connector parts
The manual drying of connectors is considered in the next sections of this
CSR.
This task is considered in the estimation of exposure to hexavalent chromium. It is treated in this CSR in the Contributing Scenario 16 (CS-16).
Wastewater treatment plant
The wastewater treatment plant (WTP) on the industrial site is an installation
designed specifically to treat effluents containing hexavalent chromium.
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All the baths containing hexavalent chromium are treated with the same
process in the WTP dedicated to the used chromium mixtures. This includes the
liquid effluent from chromating baths, and liquid effluents from rinsing baths
(contaminated by hexavalent chromium), except for at Amphenol Limited, where
effluent from chromium tanks is stored in a waste tank, and then periodically
collected by a registered waste company to be treated and disposed of off-site.
Bath effluents are collected in a dedicated container in the WTP in which
dechromating (with sodium bisulfite) is performed. During this operation, hexavalent
chromium is reduced to trivalent chromium. Then, neutralisation is performed with
soda and flocculation followed by filtration on a filter press. Sludge produced is
disposed of to a specialized center.
This step on the process is considered in the estimation of environmental exposure to hexavalent chromium. It is treated in this CSR in the Contributing Scenario 1
(CS-1).
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9.1.1.1.1. Tasks to be considered in the CSR
Based on the foregoing description of the process, the exposure scenarios will be
described with the following tasks:
Exposure scenario 1 (ES1), Industrial use of a mixture of chromic acids for
chromium plating:
o Sampling of bath
o Lab analysis
o Other activities next to the bath
o Repackaging of solid by using fume cupboard
o Repackaging of solid by using other local ventilation
o Repackaging of solid without local ventilation
o Repackaging of liquid
o Addition of liquid to bath
o Addition of solid to bath
o Addition of liquid in bath via pumping system
o Handling of articles
o Dipping connector parts in treatment bath, in the worker’s near field
o Dipping connector parts in rinsing baths, in the worker’s near field
o Treatment baths in the workers’ far field
o Drying connector parts
9.1.1.2. Tonnage information / Number of worker exposed:
Tonnage information
Tonnage of substance used for each legal entity is presented in the following
section. It should be noted that Souriau is the only legal entity concerned by Use-3;
consequently, the tonnage information is not presented for the others.
Amphenol Limited:
The tables below present the past consumption until the year 2015 and the
estimated consumption of hexavalent chromium compounds (sodium dichromate
and chromium trioxide) on the site of Amphenol Limited.
Quantities (in tons) for the years 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Use-1 0.148 0.160 0.064 0.106 0.101 0.097 0.093 0.089 0.085 0.081 0.078 0.074
Use-2 0.194 0.273 0.203 0.246 0.255 0.265 0.276 0.287 0.298 0.310 0.323 0.336
Total 0.342 0.433 0.267 0.352 0.357 0.362 0.369 0.376 0.383 0.392 0.401 0.411
Table 18 : Past and future estimated consumption on the site of Amphenol Limited
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Quantities (in tons) for the years 2025 2026 2027 2028 2029
Use-1 0.071 0.068 0.066 0.063 0.060
Table 19 : Estimated consumption in the site of Amphenol Limited
It should be noted that on the site of Amphenol Limited, both sodium
dichromate (CAS 10588-01-9) and sodium dichromate dihydrate (CAS 7789-12-0) are
used. These two substances are presented as the same substance since the EC
number is common for both substances (EC 234-190-3).
Quantities presented in the following table are based on the above
estimations for the maximum amount used for chromium plating to cover the
activities considered during the review period. Consequently, the total tonnage of
the substances considered in this CSR is presented as follows.
Use-1 Use-2
Sodium dichromate 0 0.26
Chromium trioxide 0.12 0.1
Total 0.12 0.36
Table 20: Tonnage information for Amphenol limited
Amphenol Socapex:
The tables below present the past consumption until the year 2015 and the
estimated consumption of hexavalent chromium compounds (sodium dichromate
and chromium trioxide) on the site of Amphenol Socapex.
Quantities (in tons) for the years
2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Use-1 0.64 0.62 0.56 0.60 0.55 0.50 0.50 0.50 0.50 0.50 0.40 0.40
Use-2 0.21 0.15 0.20 0.20 0.20 0.20 0.15 0.15 0.15 0.10 0.10 0.10
Total 0.85 0.77 0.76 0.80 0.75 0.70 0.65 0.65 0.65 0.60 0.50 0.50
Table 21 : Past and future estimated consumption on the site of Amphenol Socapex
Quantities (in tons) for the years 2025 2026 2027 2028 2029
Use-1 0.40 0.30 0.30 0.30 0.20
Table 22 : Estimated consumption in the site of Amphenol Socapex
Quantities presented in the following table are based on the above
estimations for the maximum amount used for chromium plating to cover the
activities considered during the review period. Consequently, the total tonnage of
the substances considered in this CSR is presented as follows.
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Use-1 Use-2
Sodium dichromate 0.02 -
Chromium trioxide 0.53 0.20
Total 0.55 0.20
Table 23: Tonnage information for Amphenol Socapex
ITT cannon:
The tables below present the past consumption until the year 2015 and the
estimated consumption of hexavalent chromium compounds (sodium dichromate
and chromium trioxide) on the site of ITT Cannon.
Quantities (in tons) for the years
2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Use-1 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9
Use-2 1.7 1.7 1.7 1.7 1 1 1 0.75 0.75 0.75 0.75 0.75
Total 3.6 3.6 3.6 3.6 2.9 2.9 2.9 2.65 2.65 2.65 2.65 2.65
Table 24 : Past and future estimated consumption on the site of ITT Cannon
Quantities (in tons) for the years 2025 2026 2027 2028 2029
Use-1 1.9 1.9 1.9 1.9 1.9
Table 25 : Estimated consumption in the site of ITT Cannon
Quantities presented in the following table are based on the above
estimations for the maximum amount used for chromium plating to cover the
activities considered during the review period. Consequently, the total tonnage of
the substances considered in this CSR is presented as follows.
Use-1 Use-2
Chromium trioxide 1.9 1.7
Table 26: Tonnage information for ITT Cannon
It could be noted that only one substance is used on the site of ITT Cannon.
Connecteurs Electriques Deutsch (TE connectivity Evreux - FR)
The tables below present the past consumption until the year 2015 and the
estimated consumption of hexavalent chromium compounds (sodium dichromate
and chromium trioxide) on the site of TE Connectivity Evreux (Connecteurs
Electriques Deutsch).
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Quantities (in tons) for the years 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Use-1 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.15 0.15 0.14 0.14
Use-2 0.03 0.05 0.08 0.08 0.08 0.09 0.09 0.09 0.10 0.10 0.10 0.10
Total 0.19 0.21 0.24 0.24 0.24 0.25 0.25 0.25 0.25 0.25 0.24 0.24
Table 27: Past and future estimated consumption on the site of Connecteurs Electriques Deutsch
Quantities (in tons) for the years 2025 2026 2027 2028 2029
Use-1 0.13 0.13 0.12 0.12 0.12
Table 28: Estimated consumption in the site of Connecteurs Electriques Deutsch
Quantities presented in the following table are based on the above
estimations for the maximum amount used for chromium plating to cover the
activities considered during the review period. Consequently, the total tonnage of
the substances considered in this CSR is presented as follows.
Use-1 Use-2
Potassium dichromate 0.016 0.10
Chromium trioxide 0.144 -
Total 0.160 0.10
Table 29: Tonnage information for Connecteurs Electriques Deutsch
Tyco Electronics UK Ltd (TE connectivity Hastings - UK)
The tables below present the past consumption until the year 2015 and the
estimated consumption of hexavalent chromium compounds (sodium dichromate
and chromium trioxide) on the site of TE Connectivity Hastings (Tyco Electronics UK
Ltd).
Quantities (in tons) for the years 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Use-1 0.32 0.82 0.32 0.63 0.63 0.63 0.63 0.63 0.63 0.63 0.53 0.52
Use-2 0.21 1.01 0.65 0.90 1.10 1.05 1.00 0.95 0.93 0.90 0.80 0.70
Total 0.53 1.83 0.97 1.53 1.73 1.68 1.63 1.58 1.56 1.53 1.33 1.22
Table 30: Past and future estimated consumption on the site of Tyco Electronics UK Ltd
Quantities (in tons) for the years 2025 2026 2027 2028 2029
Use-1 0.51 0.41 0.41 0.41 0.41
Table 31: Estimated consumption in the site of Tyco Electronics UK Ltd
Quantities presented in the following table are based on the above
estimations for the maximum amount used for chromium plating to cover the
activities considered during the review period. Consequently, the total tonnage of
the substances considered in this CSR is presented as follows.
CHEMICAL SAFETY REPORT
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Use-1 Use-2
Potassium dichromate 0.53 0
Sodium dichromate 0.08 0
Chromium trioxide 0.02 1.10
Total 0.63 1.10
Table 32: Tonnage information for Tyco Electronics UK Ltd
Souriau:
On the table below are presented the past consumption until the year 2015
and the estimated consumption of hexavalent chromium compounds (sodium
dichromate and chromium trioxide) on the site of Souriau.
Quantities (in tons) for the years 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Use-1 0.999 1.031 0.917 0.944 0.973 1.002 1.032 1.063 1.095 1.127 1.161 1.196
Use-2 1.773 2.337 2.160 2.225 2.292 2.361 2.270 1.500 1.500 1.500 1.000 0
Use-3 2.856 3.907 3.418 3.521 3.626 2.000 2.000 1.000 0.500 0 0 0
Total 5.628 7.274 6.495 6.690 6.891 5.362 5.302 3.563 3.095 2.627 2.161 1.196
Table 33 : Past and future estimated consumption on the site of Souriau
Quantities (in tons) for the years 2025 2026 2027 2028 2029
Use-1 1.232 1.269 1.307 1.346 1.386
Table 34: Estimated consumption in the site of Souriau
Quantities presented in the following table are based on the above
estimations for the maximum amount used for chromium plating to cover the
activities considered during the review period. Consequently, the total tonnage of
the substances considered in this CSR is presented as follows.
Use-1 Use-2 Use-3
Sodium dichromate 0.7 1.7 0
Chromium trioxide 0.7 0.7 3.7
Total 1.4 2.4 3.7
Table 35: Tonnage information for Souriau
CHEMICAL SAFETY REPORT
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Number of people exposed
The total number of workers exposed is presented in the following table.
Number of people exposed
Amphenol Limited 12
Amphenol Socapex 14
ITT Cannon 6
Connecteurs Electriques Deutsch
26
Tyco Electronics UK Ltd 11
Souriau 31
Table 36: Number of people exposed
CHEMICAL SAFETY REPORT
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9.1.1.3. Overview of exposure scenarios
The following table lists all the exposure scenarios (ES) assessed in this CSR.
Identifiers* Market
Sector
Titles of exposure scenarios and the related contributing
scenarios
Tonnage of
chromium
trioxide (tonnes
per year)
IW-1
d
SU 3
PC 14
ES1- Industrial use of a mixture of chromic acids for chromium
plating.
14.32
(
IW-1.2 - Sampling of bath (PROC 8a)
IW-1.3 - Lab analysis (PROC 15)
IW-1.4 - Other activities next to the bath (PROC 28)
IW-1.5 - Repackaging of solid by using fume cupboard (PROC 26)
IW-1.6 - Repackaging of solid by using other local ventilation (PROC 26)
IW-1.7 - Repackaging of solid without local ventilation (PROC 26)
IW-1.8 - Repackaging of liquid (PROC 8a)
IW-1.9 - Addition of liquid to bath (PROC 8a)
IW-1.10 - Addition of solid to bath (PROC 8a)
IW-1.11 - Addition of liquid in bath via pumping system (PROC 8b)
IW-1.12 - Handling of articles (PROC 21)
IW-1.13 - Dipping connector parts in treatment bath, in the worker’s near
field (PROC 13)
IW-1.14 - Dipping connector parts in rinsing baths, in the worker’s near
field (PROC 13)
IW-1.15 - Treatment baths in the workers’ far field (PROC 13)
IW-1.16 - Drying connector parts (PROC 7)
* IW = Industrial end use at site.
Table 37: Overview of exposure scenarios and contributing scenarios
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9.1.2. Introduction to the assessment
9.1.2.1. Environment
The environmental assessment is not the main consideration for this CSR
dedicated to the Application for Authorisation regarding the SVHC properties stated
in column 2 of entry 16, 18 & 19 in annex XIV of REACh (COMMISSION REGULATION
(EU) No 125/2012).
At the end of the process, all waste is managed by a specialised waste management
company that also collects all waste (paper, PPE…), except liquid waste which is
treated onsite. Amphenol limited is a specific case for which all the waste is sent off-
site to a specialised certified company (including liquid waste).
Nevertheless, in the environmental contributing scenarios, applicant will analyse and
discuss the possible release and risk for the general population.
9.1.2.2. Man via environment
Risk analysis for man via environment will be performed according to the
conclusions of the environmental release identified in the environmental
contributing scenario.
9.1.2.3. Workers
The excess risk calculation will be based on RAC/27/2013/06 Rev.1 which
establishes a reference dose response relationship for carcinogenicity of
hexavalent chromium.
Regarding the publication of the RAC, no data clearly indicate that dermal exposure
to Cr(VI) compounds presents a risk of cancer to humans. As a consequence, the risk
induced via dermal exposure will not be considered in what follows, especially taking
into account the dermal protections used when the substance is handled.
Moreover, we will estimate the cancer risk mainly due to volatility of the
substance, for lung cancer, and maximize excess of cancer risk by not taking into
account the small intestine cancer risk.
Monitoring measurement campaign are planned on site for exposure assessment of
the entire process. For the description of each contributing scenario, we will use the
ART 1.5 software to calculate an associated value of exposure. In the modelling
process, we will use the Long-term value at 90th percentile for the entire
contributing scenario. ART modelling reports are given in Annex III. It has to be
stressed that, in the ART model, the duration of activity does not impact the results
of the raw exposure estimated for one task. Thus, the duration can be adjusted for
each member for the estimation of the global exposure (made in section 10 and
duration presented in annex I). The results of the modelling approach will be
compared to monitoring measurements. Nevertheless, to calculate the excess risk of
cancer (section 10) we will use the estimation value from ART to assess a
quantitative analysis.
CHEMICAL SAFETY REPORT
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In France, as of July 2014, the regulatory constraining level is fixed at 1 µg/m3.
Companies are obliged to carry out air working measurement and take adequate risk
management measures in order to ensure that exposures are below the regulatory
level.
Considering reprotoxic effects, as mentioned in section 5, this Chemical Safety
Report focuses on the use of hexavalent chromium for the carcinogenic/mutagenic
effects. RMM are in place to reduce the risk as low as possible in the framework of
the non-threshold effects (cancer) of the substances. Consequently, as explained in
section 5, it is deemed that these measures also cover the risk due to threshold
effects for reproduction. Finally, when threshold effects are adequately controlled,
they must not be taken into account in the excess risk calculation.
Thus, exposures and excess risk calculation will be developed considering only
carcinogenic effects.
It has to be stressed that the estimated exposures presented for each contributing
scenario in the section 9 are based on the worst case according to the description of
each site, as presented in annex I.
9.1.2.4. Consumers
Not relevant since no consumer will use the final manufactured articles because they
are high technology equipment and they are not intended to be used by consumers.
Only professional workers use the treated connector parts.
CHEMICAL SAFETY REPORT
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9.2. Exposure Scenario 1 (ES1): Industrial use of hexavalent
chromium in bath for the surface treatment of connectors.
Sector of use:
Industrial use: Uses of substances as such or in preparations at industrial sites (SU 3)
Article category:
Metal articles (AC 7)
Environemental contributing scenario:
CS1 - Industrial use resulting in inclusion onto a matrix (ERC 5)
Worker contributing scenarios:
CS2 - Sampling of bath (PROC 8a)
CS3 - Lab analysis (PROC 15)
CS4 - Other activities next to the bath (PROC 28)
CS5 - Repackaging of solid by using fume cupboard (PROC 26)
CS6 - Repackaging of solid by using other local ventilation (PROC 26)
CS7 - Repackaging of solid without local ventilation (PROC 26)
CS8 - Repackaging of liquid (PROC 8a)
CS9 - Addition of liquid to bath (PROC 8a)
CS10 - Addition of solid to bath (PROC 8a)
CS11 - Addition of liquid in bath via pumping system (PROC 8b)
CS12 - Handling of articles (PROC 21)
CS13 - Dipping connector parts in treatment bath, in the worker’s near field (PROC 13)
CS14 - Dipping connector parts in rinsing baths, in the worker’s near field (PROC 13)
CS15 - Treatment baths in the workers’ far field (PROC 13)
CS16 - Drying connector parts (PROC 7)
The exposure scenario concerns the immersion of connector parts in bath
treatment for chromium treatment. Only the tasks which lead to exposure of
hexavalent chromium, as identified in the section 9.1.1 are analysed as contributing
scenarios. For all the contributing scenarios concerning the exposure at the
workplace, detailed conditions of use for each site are presented in annex I.
Efficiency of respiratory protective equipment
When it is described in the contributing scenario, wearing respiratory
protective equipment (RPE) is mandatory. Thus, to estimate exposure of workers at
the workplace, it is necessary to determine the effectiveness of the respiratory
protection. The result is the assigned protection factor (APF). The choice of this
CHEMICAL SAFETY REPORT
59
factor may vary, depending on the country for which it is used. Table 38 presents the
various protective factors assigned to the breathing equipment used in this exposure
scenario (except for the contributing scenario 7). It is a half mask which has been
tested to European Standard EN 143, EN 140 or EN 405 and has met the relevant
requirements of the category P3.
Country /
Nominal protection factor
Assigned protection factors (APF)
EN 140/143 EN 405
France (advised by INRS11
) 10 -
Germany 30 30
Italy 30 -
United Kingdom 20 10
Nominal protection factor 48 33
APF used in this CSR 10 10
APF presented in annex C of the NF EN 529 standard and in INRS guidance
11
Table 38: assigned protection factor
The applicant made the choice to use an APF of 10. This tie in with a
precautionary approach and with the methodology of the modelling approaches of
MEASE12, recommended in the technical guidance of ECHA (ECHA 201213).
For the contributing scenario 7 (CS-7), the respiratory protective equipment (RPE)
used is a powered filtering device incorporating a hood/helmet which has been
tested to European Standard EN 12941 on the class TH3.
11 INRS (Institut National de Recherche et de Sécurité). Les appareils de protection
respiratoire, choix et utilisation. 2011. Ref : ED 6106 12
MEASE is a modelling tool for exposure estimation at the workplace. As described in the section 9.1.2.3, the modelling approach of this CSR , is based on the ART Tool for a Tier 2 exposure estimation. MEASE is not used because it is a Tier 1 exposure estimation. However, the present version of ART cannot estimate the exposure with respiratory protective equipment and consequently the applicant needs to determine an assigned protection factor.
13 Guidance on information requirements and chemical safety assessment, Chapter R.14 :
Occupational exposure estimation. Version : 2.1. 2012. Paragraphe R.14.4.8.3 page25.
CHEMICAL SAFETY REPORT
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Country /
Nominal protection factor
Assigned
protection
factor (APF)
France (advised by INRS11
) 40
Finland 200
Germany 100
Italy 200
Sweden 200
United Kingdom 40
Nominal protection factor 500
APF used in this CSR 40
APF presented in annex C of the NF EN 529 standard and in INRS guidance
Table 39: assigned protection factor for the RPE used for CS-7
The applicant made the choice to use an APF of 40. This tie in with a
precautionary approach and with the methodology of the modelling approaches of
MEASE12, recommended in the technical guidance of ECHA (ECHA 201213).
CHEMICAL SAFETY REPORT
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9.2.1. Environmental contributing scenario 1: Industrial use resulting in
inclusion onto a matrix
9.2.1.1. Conditions of use
Parameter Information
Product characteristics
• Product Hexavalent chromium in a mixture.
• Physical form Solid dissolved in a liquid
• Amount 0.3 to 7.3 t / year for each site
• Weight fraction of
the substance in the
liquid mixture
Concentration of substance in a bath is in the range of 0.12 to 10 % (w/w)
Operational conditions
• Emission Sources
No release is expected on the process, except for:
- Air extraction from the baths treatment
- Waste production during the treatment of liquid effluents
The integrity of the process circuit is regularly monitored.
The possibilities of release are detailed below.
• Atmospheric
emissions
Air from local extraction of the baths in the plating shop is collected through a specific system. The air is then evacuated through a chimney on the roof of the plating shop.
The possible atmospheric emissions will be considered in the following part of the CSR.
• Liquid effluents
All the liquid effluents containing hexavalent chromium on the industrial site are collected in specific wastewater pipe and treated with a specific treatment in the wastewater treatment plant (WTP) of the site. For the specific case of Amphenol Limited, wastewater is disposed of in specific containers in order to be sent off-site to a specialized certified company.
Water used in the rinsing baths is recycled by using a treatment with ion exchange resin and active carbon. This treatment produces demineralized water. Chromium is consequently eliminated from water.
Mixture drained from the used chromium tanks is collected and treated with a specific process. Hexavalent chromium is reduced with sodium metabisulphite, sodium bisulphite and/or soda (soda can be added specifically to increase the pH value). Then a flocculation is performed, followed by a filtration on filter. The water produced with this process is then recycled to produce demineralised water through the process with active carbon described above.
With this treatment, there is no liquid effluent from the process.
• Waste production All the waste (sludge and used materials) produced during these treatments is managed by a specialized certified waste company.
Table 40: condition of use for the contributing scenario 1
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9.2.1.2. Releases
Considering the data presented in Table 40, only atmospheric release could
be considered. The air emissions are treated through a specific process, which
reduces hexavalent chromium.
Experts considered in different official reports on possible exposure to hexavalent
chromium14,15, that the most probable risk would be in the local air compartment.
Indeed, on water and soil, hexavalent chromium is transformed into trivalent
chromium via redox reaction 15,16.
Moreover, in the EU RAR about release of hexavalent chromium compounds from
use in metal treatment, no air release was considered (except during formulation of
products)14.
In order to provide more information on possible atmospheric release, the following
table presents the maximum tonnage of substances considered and the distance
between the emission source located on the plating shop and the first home.
Company Site (Town) Distance Total tonnage
TE Connectivity Evreux, FR (Connecteurs Electriques Deutsch) ≈ 200 m 0.26
Hastings, UK (Tyco Electronics UK Ltd) ≈ 135 m 1.73
Amphenol Thyez, FR (Amphenol Socapex) ≈ 115 m 0.79
Whitstable, UK (Amphenol Limited) ≈ 180 m 0.48
Souriau - Esterline Champagné, FR ≈ 250 m 7.5
ITT Cannon Weinstadt, DE ≈ 180 m 3.6
Table 41: Distance from point of release and tonnage of substance
The applicants estimated the release based on modelling exposure. Based on the
table 41, two worst cases are considered:
- Worst case 1: an atmospheric release of 7.5 tons per year with a distance of
200m.
- Worst case 2: an atmospheric release of 1.73 tons per year with a distance of
100m.
14 European Union Risk Assessment Report on hexavalent chromium substances (Volume
53 3rd
priority list) 15
INERIS - Fiche de données toxicologiques et environnementales du chrome et de ses dérivés
16 EPA Ground Water Issue, Natural Attenuation of Hexavalent Chromium in
Groundwater and Soils, EPA154015-941505, 1994
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The technical guidance document part II17 proposes estimated release factors
depending on the activity type.
The associated release factor is determined by the following parameters:
o IC 16 (Industrial category: engineering industry),
o Solubility > 1g/L,
o Vapor pressure <10 Pa,
o MC=3 (Main category: Non-dispersive use)
Thus, the release factor is determined at 0.00001.
Based on this release estimation and the Doury abacus18 (which estimates the
dispersion speed), we calculated the exposure of the general population around the
site for the worst cases 1&2 and the associated risk.
Worst case 1 (7.3 tons/200m):
Release per working day is estimated (considering 365 working days per year):
= 205.48 mg per day
Worst case 1, release per day: 205.48 mg/day (average of 2.38 µg/s on 24h)
For the assessment, we took the nearest house at approximately 200m for the worst
case 1.
Atmospheric transfer coefficient (at 200m) from Doury Abacus: 5.85x10-4 s/m3
The release in air adjusted on 24h is:
Release
(2.38 µg/s) X
Atmospheric transfer coefficient (at 200m) from
Doury Abacus (5.85x10-4
s/m3)
= 1.39 x 10-3
µg/m3
Worst case 2 (1.7 tons/100m):
Release per working day is estimated (considering 365 working days per year):
= 47.4 mg per day
17 Technical Guidance Document on risk assessment, part II about environmental risk
assessment 18
Abaques d'evaluation directe des transferts atmospheriques d’effluents gazeux, Doury et al, February 1980
CHEMICAL SAFETY REPORT
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Worst case 2, release per day: 47.4 mg/day (average of 0.55 µg/s on 24h)
For the assessment, we took the nearest house at approximately 100m for the worst
case 2.
Atmospheric transfer coefficient (at 100m) from Doury Abacus: 1.87x10-3 s/m3
The release in air adjusted on 24h is:
Release
(0.55 µg/s) X
Atmospheric transfer coefficient (at 100m) from
Doury Abacus (1.87x10-3
s/m3)
= 1.03 x 10-3
µg/m3
9.2.1.3. Exposure and risks for the environment and man via the environment
As described above, release of hexavalent chromium in the environment via
soil and water are negligible. No exposure to the substance of man via environment
is therefore considered in this exposure scenario via these compartments.
Considering the release in the atmospheric compartment, after calculation,
the exposures for general population are:
o 1.39 x 10-3 µg/m3 per 24h and considering 365 working days for the worst case 1,
o 1.03 x 10-3 µg/m3 per 24h and considering 365 working days for the worst case 2.
The excess of risk of lung cancer for the general population will be adjusted to the
review period.
Weighted excess of lung cancer risk for general
population Value
Excess risk of lung cancer, per µg/m3 of Cr(VI)
based on 70 years, 365 days per year, 24h per
day (RAC 2013) 2.9x10-2
Excess risk of lung cancer, per µg/m3 of Cr(VI)
based on 1 year, 365 days per year, 24h per day 4.1x10-4
Excess risk of lung cancer, per µg/m3 of Cr(VI)
based on 7 years (review period for Use-2 & 3),
365 days per year, 24h per day 2.9x10-3
Excess risk of lung cancer, per µg/m3 of Cr(VI)
based on 12 years (review period for Use-1),
365 days per year, 24h per day 5.0x10-3
Table 42: RAC adjusted excess of risk calculation for general population
CHEMICAL SAFETY REPORT
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Excess risk Worst case Value
Final individual excess risk of lung cancer based on 7 years
(review period for Use-2&3), 365 days per year, 24h per day
Worst case 1 (7.3 tons & 200m)
4.03x10-6
Worst case 2 (1.7 tons & 100m)
2.97x10-6
Final individual excess risk of lung cancer based on 12 years
(review period for Use-1), 365 days per year, 24h per day
Worst case 1 (7.3 tons & 200m)
6.92x10-6
Worst case 2 (1.7 tons & 100m)
5.10x10-6
Table 43: Risk calculation for general population
All the calculated excess risks presented in the above table are in the order of
magnitude of 10-6. The approach used is a generic approach with several
uncertainties which lead to an over-estimation of the exposure:
- The results presented above are based on two worst case scenarios for the
CMG (in terms of tonnage of substance and distance from the source of
emission).
- The air extraction is evacuated from the plating shop through a chimney
located on the roof of the plating shop. This chimney is not located high
enough to consider a wide atmospheric dispersion.
- Specific treatment process for treating the air extracted from the process,
before evacuating it in the atmosphere (acido-basic scrubber, mist
eliminator…) are not considered in the generic estimation presented above.
- In order to respect a short and simple methodology, the quantities used for
the exposure calculations for each worst case scenarios are the global
quantities used on site (for the uses 1, 2 & 3). Consequently, the excess risks
presented separately for Use-1 and the Uses-2&3 take into account the
global quantities involved for the three uses. Thus, there is a double count in
the excess risk presented. A more detailed estimation of exposure is not
presented in order to keep the simplest calculation method.
- This estimation does not take into account the degradation/transformation
reaction of hexavalent chromium. In the environment, including in the air
compartment, hexavalent chromium is a strong oxidising agent which can
react with a wide range of reducing agents to form chromium (III)16. It has
also been shown that chromium (VI) can be photochemically reduced by UV-
light to chromium (III)16.
Conclusion:
Compared to the worker’s excess risk of lung cancer
Considering the risk management measures implemented by all CMG members
Considering the level of containment of the process
Considering the uncertainties which lead our calculation to an over-estimation
CHEMICAL SAFETY REPORT
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Considering that the decision point for “acceptable” lifetime cancer risk levels used
for general population are generally around 10-5 *
The risk for general population is considered as negligible.
* This decision point is presented in the technical guidance of ECHA19
19 ECHA Guidance on information requirements and chemical safety assessment,
chapiter R8, Appendix R. 8-14 page 140.
CHEMICAL SAFETY REPORT
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9.2.2. Worker contributing scenario 2: Sampling of bath
This contributing scenario deals with the exposure of workers during the
sampling of the mixture containing hexavalent chromium in the bath treatment, as
described in paragraph 9.1.1.1.
9.2.2.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
44 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Mixture
• Physical form Powder dissolved in a liquid matrix
• Weight fraction Minor (5-10%)
• Viscosity low viscosity (like water)
Operating condition
• Activity class Transfer of liquid products.
Falling liquids.
• Loading type Submerged loading (where the amount of aerosol formation
is reduced).
• Flow of transfer <0.1l/minute
• Duration 2min
• Primary emission source proximity <1m
Risk management measures
• General ventilation 3 ACH
• General control Measures No localised control
• Level of containment Open process
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place Yes
• Work area Indoors
• Size of the work area 3000m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 44: Condition of use of the contributing scenario 2 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 45 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
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Parameters Information
Personal protective equipment
• Respiratory protective
equipement (RPE) No RPE
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 45: Condition of use for the contributing scenario 2 - other conditions
9.2.2.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the
table 46. The exposures are presented without respiratory protective equipment
(RPE).
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 1.7 µg.m
-3 2 min
Table 46: Exposure estimation - contributing scenario 2
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9.2.3. Worker contributing scenario 3: Lab analysis
This contributing scenario deals with the exposure of workers during the
titration of the mixture containing hexavalent chromium, performed on a laboratory
bench, in a dedicated area separate from the plating shop, as described in paragraph
9.1.1.1.
9.2.3.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the Table
47 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Mixture
• Physical form Powder dissolved in a liquid matrix
• weight fraction Minor (5-10%)
• Viscosity low viscosity (like water)
Operating condition
• Activity class
Activities with open liquid surfaces or open reservoirs.
Activities with undisturbed surfaces (no aerosol formation).
• Duration All the activities concerned cannot exceed 120 min, depending on the
site.
• Primary emission source proximity <1m
• Open surface <0,1m²
Risk management measures
• General ventilation No restriction on general ventilation characteristics
• General control Measures Enclosing hood, fume cupboard.
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 100m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 47: Condition of use of the contributing scenario 3 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 48 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
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Parameters Information
Personal protective equipment
• Respiratory protective
equipement No RPE
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 48: Condition of use for the contributing scenario 3 - other conditions
9.2.3.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the Table
49. The exposures are presented without respiratory protective equipments (RPE).
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 0.046 µg.m
-3 120 min
Table 49: Exposure estimation - contributing scenario 3
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9.2.4. Worker contributing scenario 4: Other activities next to the bath
This contributing scenario deals with the exposure of workers during the
activities performed next to the chromium bath, as described in paragraph 9.1.1.1.
9.2.4.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
50 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Powders dissolved in a liquid matrix
• Physical form Liquid matrix
• Weight fraction Minor (5-10%)
• Viscosity Liquids with low viscosity (like water)
Operating condition
• Activity class Activities with open liquid surfaces or open reservoirs.
Activities with undisturbed surfaces (no aerosol formation).
• Duration All the activities concerned cannot exceed 300min, depending on the site.
• Primary emission source proximity
<1m
• Open surface 0.3 – 1m²
Risk management measures
• General ventilation 3 ACH
• General control Measures No localised control
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 3000m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 50: Condition of use of the contributing scenario 4 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 51 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
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Parameters Information
Personal protective equipment
• Respiratory protective
equipment (RPE) No RPE
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 51: Condition of use for the contributing scenario 4 - other conditions
9.2.4.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
52. The exposures are presented without respiratory protective equipments (RPE).
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 1.7 µg.m
-3 300 min
Table 52: Exposure estimation - contributing scenario 4
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9.2.5. Worker contributing scenario 5: Repackaging of solid by using fume
cupboard
This contributing scenario deals with the exposure of workers during the
transfer from one container to another, as described in paragraph 9.1.1.1.
9.2.5.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
53 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Solid
• Physical form Granules, flakes or pellets
• weight fraction Pure material (100%)
• Moisture content Dry product (<5 % moisture content)
Operating condition
• Activity class
Transfer of powder
Falling of powders
• Drop height Drop height < 0.5 m
• Flow of transfer 0.1 – 1 kg/minute
• Duration 420 min
• Primary emission source proximity <1m
Risk management measures
• General ventilation No restriction on general ventilation
• General control Measures Careful transfer involves workers showing attention to potential
danger. Transfer performed by using a fume cupboard.
• Level of containment Handling that reduces contact between product and adjacent air
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 100m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 53: Condition of use of the contributing scenario 5 - modelling
CHEMICAL SAFETY REPORT
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The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 54 presents the necessary
information that does not affect the modelling results.
Parameters Information
Personal protective equipment
• Respiratory protective
equipement P3 half mask which has been tested to European Standard EN 143, EN 140 or EN 405
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 54: Condition of use for the contributing scenario 5 - other conditions
9.2.5.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
55. The exposures are presented with and without respiratory protective equipments
(RPE). The description of the RPE used is given at the beginning of the section 9.2.
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 1.1 µg.m
-3 420 min
Short term, ART estimation -
With RPE 0.11 µg.m
-3 420 min
Table 55: Exposure estimation - contributing scenario 5
CHEMICAL SAFETY REPORT
75
9.2.6. Worker contributing scenario 6: Repackaging of solid by using other
local ventilation
This contributing scenario deals with the exposure of workers during the
transfer from one container to another, as described in paragraph 9.1.1.1.
9.2.6.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
56 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Solid
• Physical form Granules, flakes or pellets
• weight fraction Pure material (100%)
• Moisture content Dry product (<5 % moisture content)
Operating condition
• Activity class
Transfer of powder
Falling of powders
• Drop height Drop height < 0.5 m
• Flow of transfer 0.1 – 1 kg/minute
• Duration 15 min
• Primary emission source proximity <1m
Risk management measures
• General ventilation No restriction on general ventilation
• General control Measures Careful transfer involves workers showing attention to potential
danger. Local exhaust ventilation, enclosing hood (other enclosing hood).
• Level of containment Handling that reduces contact between product and adjacent air
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 300m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 56: Condition of use of the contributing scenario 6 - modelling
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76
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 57 presents the necessary
information that does not affect the modelling results.
Parameters Information
Personal protective equipment
• Respiratory protective
equipement P3 half mask which has been tested to European Standard EN 143, EN 140 or EN 405
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 57: Condition of use for the contributing scenario 6 - other conditions
9.2.6.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
58. The exposures are presented with and without respiratory protective equipments
(RPE). The description of the RPE used is given at the beginning of the section 9.2.
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 6.1 µg.m
-3 15 min
Short term, ART estimation -
With RPE 0.61 µg.m
-3 15 min
Table 58: Exposure estimation - contributing scenario 6
CHEMICAL SAFETY REPORT
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9.2.7. Worker contributing scenario 7: Repackaging of solid without local
ventilation
This contributing scenario deals with the exposure of workers during the
transfer from one container to another, as described in paragraph 9.1.1.1.
9.2.7.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
59 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Solid
• Physical form Granules, flakes or pellets
• weight fraction Pure material (100%)
• Moisture content Dry product (<5 % moisture content)
Operating condition
• Activity class
Transfer of powder, granules or pelletised material
Falling of powders
• Drop height Drop height < 0.5 m
• Flow of transfer 0.1 – 1 kg/minute
• Duration 5 min
• Primary emission source proximity <1m
Risk management measures
• General ventilation General ventilation: ACH = 3
• General control Measures Careful transfer involves workers showing attention to potential
danger.
• Level of containment Handling that reduces contact between product and adjacent air
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 30m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 59: Condition of use of the contributing scenario 7 - modelling
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The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 60 presents the necessary
information that does not affect the modelling results.
Parameters Information
Personal protective equipment
• Respiratory protective
equipement Powered filtering device incorporating a hood/helmet which has been tested to European Standard EN 12941 on the class TH3.
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 60: Condition of use for the contributing scenario 7 - other conditions
9.2.7.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
61. The exposures are presented with and without respiratory protective equipments
(RPE). The description of the RPE used is given at the beginning of the section 9.2.
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 140. µg.m
-3 5 min
Short term, ART estimation -
With RPE 3.5 µg.m
-3 5 min
Table 61: Exposure estimation - contributing scenario 7
CHEMICAL SAFETY REPORT
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9.2.8. Worker contributing scenario 8: Repackaging of liquid
This contributing scenario deals with the exposure of workers during the
transfer from one container to another, as described in paragraph 9.1.1.1.
9.2.8.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
62 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Liquid
• Physical form Powder dissolved in a liquid matrix
• Weight fraction Substantial (10-50%)
Operating condition
• Activity class
Transfer of liquid
Falling liquid.
• Type of handling Splash loading
• Flow of transfer 1 - 10 l/minute
• Duration 5 min
• Primary emission source proximity <1m
Risk management measures
• General ventilation No restriction on general ventilation
• Level of containment Handling that reduces contact between product and adjacent air
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 100m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 62: Condition of use of the contributing scenario 8 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 63 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
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Parameters Information
Personal protective equipment
• Respiratory protective
equipement P3 half mask which has been tested to European Standard EN 143, EN 140 or EN 405
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 63: Condition of use for the contributing scenario 8 - other conditions
9.2.8.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
64. The exposures are presented with and without respiratory protective equipments
(RPE). The description of the RPE used is given at the beginning of the section 9.2.
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 50 µg.m
-3 5 min
Short term, ART estimation -
With RPE 5 µg.m
-3 5 min
Table 64: Exposure estimation - contributing scenario 8
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9.2.9. Worker contributing scenario 9: Addition of liquid to bath
This contributing scenario deals with the exposure of workers during the
addition of mixture in the bath treatment, as described in paragraph 9.1.1.1.
9.2.9.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
65 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Mixture
• Physical form Powder dissolved in a liquid matrix
• weight fraction Substantial (10 - 50%)
• Viscosity Low viscosity (like water)
Operating condition
• Activity class
Transfer of liquid products
Falling liquids, Splash loading
• Flow of transfer 1-10 l/minute
• Duration All the activities concerned cannot exceed 60min, depending on the site.
• Primary emission source proximity <1m
Risk management measures
• General ventilation 3 ACH
• General control Measures No localised control
• Level of containment Handling that reduces contact between product and adjacent air
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 3000m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 65: Condition of use of the contributing scenario 9 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 66 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
82
Parameters Information
Personal protective equipment
• Respiratory protective
equipement P3 half mask which has been tested to European Standard EN 143, EN 140 or EN 405
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 66: Condition of use for the contributing scenario 9 - other conditions
9.2.9.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
67. The exposures are presented with and without respiratory protective equipments
(RPE). The description of the RPE used is given at the beginning of the section 9.2.
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 18 µg.m
-3 60 min
Short term, ART estimation -
With RPE 1.8 µg.m
-3 60 min
Table 67: Exposure estimation - contributing scenario 9
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83
9.2.10. Worker contributing scenario 10: Addition of solid to bath
This contributing scenario deals with the exposure of workers during the
addition of mixture in the bath treatment, as described in paragraph 9.1.1.1.
9.2.10.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
68 presents the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Solid
• Physical form Granules, flakes or pellets
• weight fraction Pure material (100%)
• Moisture content Dry product (<5 % moisture content)
Operating condition
• Activity class Transfer of powder
Falling of powders
• Drop height Drop height < 0.5 m
• Flow of transfer 0.1 – 1 kg/minute
• Duration All the activities concerned cannot exceed 60min, depending on the
site.
• Primary emission source proximity <1m
Risk management measures
• General ventilation 3 ACH
• General control Measures
Careful transfer involves workers showing attention to potential danger.
Wetting at the point of release
• containment of the process Open process
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 3000m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 68: Condition of use of the contributing scenario 10 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 69 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
84
Parameters Information
Personal protective equipment
• Respiratory protective
equipement P3 half mask which has been tested to European Standard EN 143, EN 140 or EN 405
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 69: Condition of use for the contributing scenario 10 - other conditions
9.2.10.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
70. The exposures are presented with and without respiratory protective equipments
(RPE). The description of the RPE used is given at the beginning of the section 9.2.
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 13 µg.m
-3 60 min
Short term, ART estimation -
With RPE 1.3 µg.m
-3 60 min
Table 70: Exposure estimation - contributing scenario 10
CHEMICAL SAFETY REPORT
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9.2.11. Worker contributing scenario 11: Addition of liquid in bath via
pumping system
This contributing scenario deals with the exposure of workers during the
addition of mixture in the bath treatment via a pumping system, as described in
paragraph 9.1.1.1.
9.2.11.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
71 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Mixture
• Physical form Powder dissolved in a liquid matrix
• weight fraction Substantial (10 - 50%)
• Viscosity low viscosity (like water)
Operating condition
• Activity class
Transfer of liquid products
Bottom loading.
• Flow of transfer 10-100 l/minute
• Duration 10 min
• Primary emission source proximity <1m
Risk management measures
• General ventilation 3 ACH
• General control Measures Handling that reduces contact between product and adjacent air.
Low level of containment
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 3000m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 71: Condition of use of the contributing scenario 11 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 72 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
86
Parameters Information
Personal protective equipment
• Respiratory protective
equipement P3 half mask which has been tested to European Standard EN 143, EN 140 or EN 405
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 72: Condition of use for the contributing scenario 11 - other conditions
9.2.11.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
73. The exposures are presented without respiratory protective equipments (RPE).
The description of the RPE used is given at the beginning of the section 9.2.
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 0.67 µg.m
-3 10 min
Table 73: Exposure estimation - contributing scenario 11
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9.2.12. Worker contributing scenario 12: Handling of articles
This contributing scenario deals with the dermal exposure of workers during the
disassembly of connector parts on the structure, at the end of treatment process, as
described in paragraph 9.1.1.1.
9.2.12.1. Conditions of use
In this contributing scenario, dermal exposure is quantitatively analysed. The
conditions of use are described in the Table 74:
Parameters Condition of use on the CMG’s site
Product characteristic
• Product Articles with hexavalent chromium included into a matrix
Operating condition
• Activity class Handling of articles
Risk management measures
• General ventilation Good general ventilation
• Personal protective equipment Protective gloves (chemical gloves approved according
to EN 374) and Protective clothes. Technical data sheet in annex.
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place. Yes
• Work area Indoors
Other parameters
• Quantity <0.01% per article
• Frequency Every days
Table 74: Condition of use for the contributing scenario 12
9.2.12.2. Exposure and risks for workers
Considering that:
- there is no liquid form of the mixture of hexavalent chromium remaining on
the article (they have been rinsed, further treated without hexavalent
chromium and then dried);
- the remaining hexavalent chromium on the article is included into a matrix
composed of the oxidized surface of the article;
- the remaining hexavalent chromium is lower than 0.01% for each article
(RoHS compliant);
- protective gloves are used to avoid any potential contact with chemicals,
including hexavalent chromium;
CHEMICAL SAFETY REPORT
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The cutaneous route of exposure is considered negligible.
Furthermore, as indicated by RAC, there is no data to indicate that dermal exposure
to Cr(VI) compounds presents a cancer risk to humans. NIOSH20 reports that some
data indicates that CrVI is reduced prior to systemic uptake (Corbett GE et al. 1997 ;
Liu KJ et al. 1997).
The cancer risk to workers via dermal route, in the case of CMG members is
therefore considered negligible.
20 National Institute for Occupational Safety and Health, Occupational Safety and Health
Administration Request for information Occupational Exposure to Hexavalent Chromium (CrVI); Novermber 20, 2002.
CHEMICAL SAFETY REPORT
89
9.2.13. Worker contributing scenario 13: Dipping connector parts in
treatment bath, in the worker’s near field
This contributing scenario deals with the exposure of workers during the dipping
of article in the bath with local exhaust ventilation (LEV), as described in paragraph
9.1.1.1.
9.2.13.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
75 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Powders dissolved in a liquid matrix
• Physical form Liquid matrix
• Weight fraction Minor (5-10%)
• Viscosity Liquids with low viscosity (like water)
Operating condition
• Activity class Activities with open liquid surfaces or open reservoirs.
Activities with undisturbed surfaces (no aerosol formation).
• Duration All the activities concerned cannot exceed 50min, depending on the site.
• Primary emission source proximity
<1m
• Open surface 0.3 – 1m²
Risk management measures
• General ventilation 3 ACH
• General control Measures
Local exhaust ventilation (LEV), fixed capturing hood.
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area
3000m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 75: Condition of use of the contributing scenario 13 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 76 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
90
Parameters Information
Personal protective equipment
• Respiratory protective
equipment (RPE) No RPE
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 76: Condition of use for the contributing scenario 13 - other conditions
9.2.13.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
77. The exposures are presented without respiratory protective equipments (RPE).
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 0.17 µg.m
-3 50 min
Table 77: Exposure estimation - contributing scenario 13
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9.2.14. Worker contributing scenario 14: Dipping connector parts in rinsing
baths, in the worker’s near field
This contributing scenario deals with the exposure of workers during the dipping
of article in the bath treatment line, as described in paragraph 9.1.1.1.
9.2.14.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
78 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Powders dissolved in a liquid matrix
• Physical form Liquid matrix
• Weight fraction Very small (0.5-1%)
• Viscosity Liquids with low viscosity (like water)
Operating condition
• Activity class Activities with open liquid surfaces or open reservoirs.
Activities with undisturbed surfaces (no aerosol formation).
• Duration All the activities concerned cannot exceed 30min, depending on the
site.
• Primary emission source proximity
<1m
• Open surface 0.3 – 1m²
Risk management measures
• General ventilation 3 ACH
• General control Measures No localised control
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 3000m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 78: Condition of use of the contributing scenario 14 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 79 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
92
Parameters Information
Personal protective equipment
• Respiratory protective
equipment (RPE) No RPE
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 79: Condition of use for the contributing scenario 14 - other conditions
9.2.14.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
80. The exposures are presented without respiratory protective equipments (RPE).
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 0.17 µg.m
-3 30 min
Table 80: Exposure estimation - contributing scenario 14
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9.2.15. Worker contributing scenario 15: Treatment baths in the workers’
far field
This contributing scenario deals with the exposure of workers when they are
present in the plating shop, as described in paragraph 9.1.1.1.
9.2.15.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
81 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Powders dissolved in a liquid matrix
• Physical form Liquid matrix
• Weight fraction Minor (5-10%)
• Viscosity Liquids with low viscosity (like water)
Operating condition
• Activity class Activities with open liquid surfaces or open reservoirs.
Activities with undisturbed surfaces (no aerosol formation).
• Duration All the activities concerned cannot exceed 420min, depending on the site.
• Primary emission source proximity
>1m
• Treated surface 1 – 3m²
Risk management measures
• General ventilation 3 ACH
• General control Measures Fixed capturing hood
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 3000m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 81: Condition of use of the contributing scenario 15 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 82 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
94
Parameters Information
Personal protective equipment
• Respiratory protective
equipment (RPE) No RPE
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 82: Condition of use for the contributing scenario 15 - other conditions
9.2.15.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
83. The exposures are presented without respiratory protective equipments (RPE).
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 0.0053 µg.m
-3 420 min
Table 83: Exposure estimation - contributing scenario 15
CHEMICAL SAFETY REPORT
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9.2.16. Worker contributing scenario 16: Drying connector parts
This contributing scenario deals with the exposure of workers when they are
present in the plating shop, as described in paragraph 9.1.1.1.
9.2.16.1. Conditions of use
In this contributing scenario, exposure is estimated with the modelling approach of
ART (Advanced REACh Tool) version 1.5. The conditions of use described in the table
87 present the information required for this estimation.
Parameters Information for modelling
Product characteristic
• Product Powders dissolved in a liquid matrix
• Physical form Liquid matrix
• Weight fraction Small (1-5%)
• Viscosity Liquids with low viscosity (like water)
Operating condition
• Activity class
Spray application of liquids (this activity class is considered in a precautionary approach, in order to consider evaporation and impaction as emission generation mechanisms)
Surface spraying liquids. Horizontal or downward spraying Spraying with no or low compressed air use
• Duration 3 min
• Primary emission source proximity
<1m
• Application rate Very low application rate (< 0.03 l/minute is considered as the rate of aerosol
formation due to the use of air gun)
Risk management measures
• General ventilation 10 ACH
• General control Measures Enclosing hoods (other enclosing hoods)
• Demonstrable and effective housekeeping practices in place
No
• General housekeeping practices in place
Yes
• Work area Indoors
• Size of the work area 3000m3
Version of the modelling tool : ART (Advanced REACh Tool) version 1.5
Table 84: Condition of use of the contributing scenario 17 - modelling
The ART modelling tool does not take into account all the necessary information for
the risk assessment as required in the CSR. Table 88 presents the necessary
information that does not affect the modelling results.
CHEMICAL SAFETY REPORT
96
Parameters Information
Personal protective equipment
• Respiratory protective
equipment (RPE) P3 half mask which has been tested to European Standard EN 143, EN 140 or EN 405.
• Other personal protective
equipment Protective gloves (chemical gloves approved according to EN 374) and Protective clothes. Technical data sheet in annex.
Exposure value will be validated by working air measure campaign (monitoring). Level of exposure lower than
the estimated level will confirm the risk assessment performed in this CSR.
Table 85: Condition of use for the contributing scenario 17 - other conditions
9.2.16.2. Exposure and risks for workers
The estimated exposure for this contributing scenario is presented in the table
89. The exposures are presented with and without respiratory protective equipments
(RPE). The description of the RPE used is given at the beginning of the section 9.2.
It has to be stressed that the estimation of exposure for this contributing
scenario is an over-estimation since the activity class considered is a spray
application of liquids whereas the potential formation of aerosol by using the airgun
cannot be considered as important as a spraying activity. However, this activity class
was used in order to consider evaporation and impaction as emission generation
mechanisms in order to ensure the suitability of the precautionary approach used in
this CSR and to take into account all the potential emission mechanisms which could
lead to an exposure. Consequently, the exposure estimation presented in this
contributing scenario is particularly an over estimation, but this contribute to take
into account all the potential exposure of workers.
Type of exposure Raw exposure concentration
estimation Duration of work
Short term, ART estimation -
Without RPE 6.7 µg.m
-3 3 min
Short term, ART estimation -
With RPE 0.67 µg.m
-3 3 min
Table 86: Exposure estimation - contributing scenario 17
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9.3. Exposure Scenario 2 (ES2): Professional use of articles
treated by immersion.
This exposure scenario deals with the use of final treated articles. They are
equipments used for high technology purposes and they are not intended to be used
by consumers. Only professional workers are therefore concerned by this ES.
Considering that there is no liquid form of the mixture of hexavalent chromium
remaining on the article, there is no possibility of exposure to hexavalent chromium
via inhalation route.
Considering that:
- the remaining hexavalent chromium on the article is included into a matrix
composed of the formation of oxidized surface of the article;
- the thick layer of this matrix is in the order of magnitude of micrometer;
- the remaining hexavalent chromium is lower than 0.01% for each article;
The cutaneous route of exposure is considered negligible.
Furthermore, as indicated by RAC, there is no data to indicate that dermal exposure
to Cr(VI) compounds presents a cancer risk to humans. NIOSH21 reports that some
data indicates that CrVI is reduced prior to systemic uptake (Corbett GE et al. 1997;
Liu KJ et al. 1997).
The cancer risk to workers via dermal route in the case of the use of connectors
produced by CMG is therefore considered negligible.
21 National Institute for Occupational Safety and Health, Occupational Safety and Health
Administration Request for information Occupational Exposure to Hexavalent Chromium (CrVI); Novermber 20, 2002.
CHEMICAL SAFETY REPORT
98
10. RISK CHARACTERISATIO N RELATED TO
COMBINED EXPOSURE
10.1. Human health (related to combined exposure)
This CSR analyses only hexavalent chromium exposure at the workplace for an
industrial use. There is no possibility of exposure for professional use. The risk
characterization is performed for the sites of CMG members concerned by Use-1, 2 &
3.
It should be noted that the contributing scenario 12 (Handling of articles) is focused
on dermal route and a qualitative approach has been used. Thus, the risk
characterisation presented in this section focuses on the inhalation exposure.
10.1.1. Workers distribution of tasks
Two different common assumptions are made in order to estimate the frequencies
of exposure during one typical year. For all the sites, the plating shop is considered
open during 51 weeks per year. Each individual employee only works 44 weeks a
year.
10.1.1.1. Amphenol Limited
For the site of Amphenol limited, it is important to describe the baths solution
lifecycle, in order to understand the frequencies associated with drainage of baths
(CS-4), manual addition of liquid mixture (CS-9) or solid (CS-10) and the repackaging
associated with manual addition (CS-7). The control of this lifecycle is made through
lab analysis. Consequently, the frequencies of sampling and lab analysis are also
linked with these activities.
For Use-1:
At Amphenol Ltd, the solution lifecycle varies, depending on what the solution is:
olive Cd passivation, yellow Cd passivation or clear Cd passivation.
Sampling & lab
analysis Drainage of
baths Manual
addition, liquid Manual
addition, solid Repackaging
of solid
Olive Cd passivation
Twice a day
(2*5*51per year)
1 per week
(51 per year)
1 per week
(51 per year) - -
Yellow Cd passivation
(also used for Use-2)
1 per week
(51 per year, considered at 26 per
year for Use-1)
4 per year
(considered at 2 per year for
Use-1)
4 per year
(considered at 2 per year for Use-1)
- -
Clear Cd passivation
1 per week
(51 per year) Once a year - Once a year Once a year
Table 87: Activities associated with solutions lifecycle at Amphenol Ltd – Use-1
CHEMICAL SAFETY REPORT
99
It should be noted, that:
- no lab analysis is performed for these baths, sampling and pH measurements
are performed at the bath and thus both considered with the contributing
scenario 2 (as described in the section 9.1.1.1);
- There are no routine maintenance additions made to these solutions, either
manually or via an autodosing unit. Substances are only added to the tank at
the time of making up a new solution (ie the old solution is drained out, and a
new one made up).
There are a total of 3 baths considered for Use-1. The treatment bath used for Yellow
Cd passivation is also used for ZnCo, in the context of Use-2.
Thus, the following table is presented with the estimated duration and frequencies
for each contributing scenario.
On the site of Amphenol Limited, the duration for draining a bath does not exceed 15
minutes (this is the time to open the valve and allow the old solution to empty out of
the tank into the waste holding tank).
Chemical Safety Report
100
Time/frequency CS-2: Sampling
of bath
CS-4: other, next to the bath
CS-7:
Repackaging,
solid
CS-9:
Manual
addition,
liquid
CS-10: Manual
addition, solid
CS-13: Dipping
in chromium
bath, near field
CS-14: Dipping
in rinsing bath,
near field
CS-15: Treatment
bath, far field For drain Others
For Use-1: Olive Cd, clear Cd and yellow Cd (but the yellow bath is used for Cd and ZnCo)
Duration of the task 1 min 15 min 120 min 5 min 60 min 60 min 10 min for a whole
day 5 min for a whole
day 420 min
Frequency per year
(for all workers) (2*5*51) + 51 +26 2+51+1
Maintenance estimated at twice a
year 1 2+51 1
1 per day, 5 days per week, 51 weeks per
year
1 per day, 5 days per week, 51 weeks per
year
1 per day, 5 days per week, 44 weeks per year
Annual frequency
(for 1 of the 2 lab analysts)
Not done by lab. Not done by lab Not done by lab 1/2 Not done by
lab Not done by lab Not done by lab Not done by lab Not done by lab
Annual frequency
(for 1 of the10 platers)
587 / 10 54/10 Not concerned Not concerned (2+51)/10 1/10 5*51/10 5*51/10 5*44
Annual frequency
(for 1 of the 2 workers of the maintenance team)
Not concerned Not concerned 2 Not concerned Not concerned Not concerned Not concerned Not concerned Not concerned
Table 88: Table with durations and frequencies at Amphenol Ltd – Use-1
Chemical Safety Report
101
For the Use 2:
As for Use-1, the baths solution lifecycle and the frequencies of tasks associated are
detailed in the following table. At Amphenol Ltd, the solution lifecycle varies,
depending on what the solution is: black Zn-Ni passivation, Zn-Ni post dip, Black Zn-
Co, Green Zn-Co and stainless steel. A total of five baths are involved, or six if we also
consider the Yellow Zn-Co (counted twice with Use-1).
Sampling & lab
analysis Drainage of
baths Manual addition,
liquid Manual
addition, solid Repackaging
of solid
Black Zn-Ni passivation
Twice a day (2*5*51
per year)
+
1 Lab analysis per week
(51 per year)
Once a month
(12 per year)
Once a week (routine) +
Once a month (to
make up a new solution)
- -
Post dip Zn-Ni - Once a month
(12 per year)
Once a month
(to make up a new solution)
- -
Yellow Zn-Co
(also used for Use-1)
1 per week
(51 per year, considered at 25 per year for Use-2)
4 per year
(considered at 2 per year for Use-1)
4 per year
(to make up a new solution, considered at 2
per year for Use-1)
- -
Black Zn-Co Twice a day (2*5*51
per year) Every 6 months
(2 per year)
2 per year
(to make up a new solution)
- -
Green Zn-Co Twice a day (2*5*51
per year) Every 3 months
(4 per year)
4 per year
(to make up a new solution)
- -
Stainless Steel - 1 per year - 1 per year
(to make up a new solution)
1 per year
Table 89: Activities associated with solutions lifecycle at Amphenol Ltd – Use-2
When the black Zn-Ni passivation bath is analysed weekly, the sampling is performed
by the lab technicians; all other sampling (to measure pH) is done by platers
(operators).
Chemical Safety Report
102
Time/frequency
CS-2:
Sampling of
bath
CS-3: Lab
analysis
CS-4: other, next to
the bath CS-7:
Repackaging,
solid
CS-9: Manual addition,
liquid
CS-10:
Manual
addition,
solid
CS-13:
Dipping in
chromium
bath, near
field
CS-14:
Dipping in
rinsing
bath, near
field
CS-15:
Treatment
bath, far
field
CS-16:
Drying For drain Others
For Use-2: ZnNi (black passivate + post dip); ZnCo: green, black, yellow (shared with Cd); Stainless steel.
Duration of the task
1 min 5 min 15 min 120 min 5 min
2 min
(routine addition)
60 min
(to make up a new solution)
60 min 50 min for a whole day
5 min for a whole day
420 min 3 min
Frequency
(for all workers)
3*2*5*51 + 51+ 25
51
(12+12+2+2+
4+1)
per year
1 per year (maintenance)
1/year 51 12+12+2+2+4 1 per year
1 per day, 5 days per week, 51 weeks per
year
1 per day, 5 days per week, 51
weeks per year
1 per day, 5 days per week, 44 weeks per
year
20 jigs per day, 5 days
per week, 51 weeks per
year
Annual frequency
(for 1 of the 2 plating lab analysts)
51/2
(black Zn-Ni) 51/2 Not done by
lab
Done by Maintenance
team – not lab.
1/2 Not done by
lab Not done by
lab Not done by
lab Not done by lab
Not done by lab
Not done by lab
Not done by lab
Annual frequency
(for 1 of the10 platers)
(3*2*5*51+25) / 10
Not concerned
33/10
Done by Maintenance
team – not platers.
Done by Lab 51/10 32/10 1/10 5*51/10 5*51/10 5*44 (20*5*51)/1
0
Annual frequency (for 1 of the 2 workers of the maintenance team)
Not concerned Not
concerned Not
concerned 1
Not concerned
Not concerned
Not concerned Not concerned Not concerned Not
concerned Not
concerned Not
concerned
Table 90: Table with durations and frequencies at Amphenol Ltd – Use-2
CHEMICAL SAFETY REPORT
103
10.1.1.2. Amphenol Socapex
For Amphenol Socapex the description of the baths solution lifecycle is not
necessary for the understanding of the frequencies associated with the contributing
scenario considered:
o For Use-1:
- CS-4: Other activities next to the bath
- CS-5: Repackaging of solid by using fume cupboard
- CS-8: Repackaging of liquid
- CS-9: Addition of liquid to bath
- CS-10: Addition of solid to bath
- CS-13: Dipping connector parts in treatment bath, in the worker’s near field
- CS-14: Dipping connector parts in rinsing baths, in the worker’s near field
- CS-15: Treatment baths in the workers’ far field
o For Use-2:
- CS-2: Sampling of bath
- CS-3: Lab analysis
- CS-4: Other activities next to the bath CS-5: Repackaging of solid by using fume cupboard
- CS-8: Repackaging of liquid
- CS-9: Addition of liquid to bath
- CS-13: Dipping connector parts in treatment bath, in the worker’s near field
- CS-14: Dipping connector parts in rinsing baths, in the worker’s near field
- CS-15: Treatment baths in the workers’ far field
It should be noted, that there are no sampling and titration under Use-1. New
solution bath is made up with a solid form in the context of Use-1 and with a liquid
form in the context of Use-2.
The duration taken into account for the CS-15 (Treatment bath, far field) is lower
than the other CMG members because as described in the section 9.1.1. the
assembly and dismantling of parts is made by operators in a separate room.
Consequently the time provided for this activity is not considered as an exposure into
the CS-15, and the global duration of the CS-15 for an operator of the plating shop is
thus considered at 300min. Furthermore, an exposure for technicians or engineers is
considered with the CS-15 with a duration of 60min in order to cover occasional visit
of in the plating shop.
Thus, the following table is presented with the estimated duration and frequencies
for each contributing scenarios.
CHEMICAL SAFETY REPORT
104
Use-1 :
Time/frequency
CS-4: Other, next to the
bath CS-5:
Repackaging,
solid
CS-8:
Repackaging,
liquid
CS-9: Manual
addition, liquid
CS-10: Manual
addition, solid
CS-13: Dipping in
chromium bath,
near field
CS-14:
Dipping in
rinsing bath,
near field
CS-15:
Treatment
bath, far field For drain Others
Duration of the task 15 min 120 min 420 min 5 min 5 min 5 min 15 min for a whole
day 10 min for a whole day
60 or 300 min
Frequency
(for 10 workers of the plating shop)
1 per week 1 per month 1 per year 1 per week 1 per week 1 per month 5*51 per year 5*51 per year
5*44 per year (300 min)
Per worker
Frequency
(for 1 of the 4 technicians or engineers)
Not concerned
Not concerned
Not concerned Not concerned Not concerned Not concerned Not concerned Not concerned 5*44 per year (60
min)
Table 91: Table with durations and frequencies at Amphenol Socapex – Use-1
Use-2 :
Time/frequency
CS-2:
Sampling of
bath
CS-3: Lab
analysis
CS-4: Other, next to the
bath CS-8:
Repackaging,
liquid
CS-9: Manual
addition, liquid
CS-13: Dipping in
chromium bath,
near field
CS-14: Dipping
in rinsing
bath, near
field
CS-15:
Treatment bath,
far field For drain Others
Duration of the task 2 min 120 min 15 min 120 min 5 min 5 min 15 min for a whole day 10 min for a whole day
60 or 300 min
Frequency
(for 10 workers of the plating shop)
Not concerned Not
concerned 1 per week 1 per month 1 per day 1 per day 5*51 per year 5*51 per year
5*44 per year (300 min)
Per worker
Frequency (for 1 lab worker)
2 per month 2 per month Not
concerned Not concerned Not concerned Not concerned Not concerned Not concerned Not concerned
Frequency
(for 1 of the 4 technicians or engineers)
Not concerned Not
concerned Not
concerned Not concerned Not concerned Not concerned Not concerned Not concerned
5*44 per year (60 min)
Table 92: Table with durations and frequencies at Amphenol Socapex – Use-2
CHEMICAL SAFETY REPORT
105
10.1.1.3. ITT Cannon
On the site of ITT cannon, the following contributing scenarios are involved:
- CS-4: Other activities next to the bath
- CS-11: Addition of liquid in bath via a pumping system
- CS-13: Dipping connector parts in treatment bath, in the worker’s near field
- CS-14: Dipping connector parts in rinsing baths, in the worker’s near field
- CS-15: Treatment baths in the workers’ far field
It should be noted that on the site of ITT Cannon, only one chromium bath is used for
both Use-1 and Use-2. According to the quantity of connector parts treated for each
used, it appears to be equal between the two uses. Thus, in order to identify what
could be the exposure due to Use-1 or Use-2 separately, the frequencies were
spread evenly.
Consequently, the duration and frequencies are presented in the following table:
For Use-1:
Time/frequency CS-4: other, next
to the bath
CS-11: Automatic
addition, liquid
CS-13: Dipping in
chromium bath,
near field
CS-14: Dipping in
rinsing bath, near
field
CS-15:
Treatment bath,
far field
Duration of the task 5 min 30 min 10 min 5 min 5 min 420 min
Frequency
(for 6 workers of the plating shop)
1 per week, 51 weeks per year
1 per year
1 per day, 5 days per week, 51 weeks per
year
2 times a year
(Sample production)
2 times a year
(Sample production)
Everyday
(5 days per week, 44 weeks per
year)
Frequency
(for 1 of the 6 workers of the plating shop)
(51)/6 per year
(1)/6 per year
255/6 per year 2/6 per year 2/6 per year 220 per year
Table 93: Table with durations and frequencies at ITT Cannon – Use-1
For Use-2:
The exact same table than the one presented for Use-1 will be used for Use-2.
For the contributing scenario 4, the estimation is based on the following:
- partial emptying the bath (by pressing a button) when adding new solution
(included in the 5 minutes presented, once per week)
- cleaning LEV (included in the 5 minutes presented, once a week)
- maintenance operations (30 min, once a year)
It should be noted that, even if the treatment line is automated and designed to
avoid any manual dipping, there are still exceptional manual dipping in order to treat
connector parts for sample production. The sample productions are exceptional and
a small batch of connectors are made for research and testing.
CHEMICAL SAFETY REPORT
106
It has to be stressed that on the site of ITT Cannon collective protective equipment
are preferred against individual protective equipement. That is why no respiratory
protective equipement is worn, and that there are several ventilations in the plating
shop.
CHEMICAL SAFETY REPORT
107
10.1.1.4. Souriau
On the site of ITT cannon, the following contributing scenarios are involved:
- CS-2: Sampling of bath
- CS-3: Lab analysis
- CS-4: Other activities next to the bath
- CS-6: Repackaging of solid by using other local ventilation
- CS-9: Addition of liquid to bath
- CS-10: Addition of solid to bath
- CS-13: Dipping connector parts in treatment bath, in the worker’s near field
- CS-14: Dipping connector parts in rinsing baths, in the worker’s near field
- CS-15: Treatment baths in the workers’ far field
All these contributing scenarios are involved for the three uses, except for Use-3, for
which the CS-9 is not performed because no liquid mixture is used for the addition in
the baths, and except the CS-13 & 15 because the treatment line involved on Use-3 is
an automated line. Consequently, there is no manual dipping and no addition of
liquid into bath involved for Use-3.
In order to consider the frequencies for each contributing scenarios, the treatment
lines have been considered with the following different populations of workers:
1. Operators of the treatment lines dedicated to Use-1
2. Operators of the treatment lines dedicated to Use-2
3. Operators of the treatment lines dedicated to Use-3
4. Operators for repackaging solid (involved on the 3 uses)
5. Internal maintenance team (involved on the 3 uses)
6. External Maintenance Team (involved on the 3 uses)
7. Lab operators (involved on the 3 uses)
The operators working on the treatment lines are composed of 6 or 9 workers for
each use. For each use, the 3 most experienced workers are the ones involved in the
operations of manual dipping (CS-13 & 15) and the additions of mixtures (CS-9 & 10).
The other 3 (less experienced) mainly work on the extremity of the treatment lines.
The duration and frequencies are presented as follow:
CHEMICAL SAFETY REPORT
108
Use-1:
Time/frequency
CS-2:
Sampling of
bath
CS-3: Lab
analysis
CS-4: Other, next to the
bath CS-6:
Repackaging,
solid
CS-9:
Manual
addition,
liquid
CS-10:
Manual
addition,
solid
CS-13: Manual
dipping in
chromium bath,
near field
CS-14: Manual
dipping in
rinsing bath,
near field
CS-15:
Treatment
bath, far field For
drain Others
Duration of the task 2 min 5 min 2 min 60 min 300 min
(2workers) 15 min 5 min 5 min
5 min for a whole day per worker
5 min for a whole day per worker
420 min per worker
Frequency for all the workers
50/year 50/year 111/year 18/year 0.5/an 89/year 22/year 89/year 5*44 per year for
each worker 5*44 per year for
each worker 5*44 per year for
each worker
6 w
ork
ers
on
th
e
tre
atm
en
t lin
e
Frequency
(for 1 of the 3 more experienced)
- - (111/6)
per year - - -
(22/3)
per year
(89/3)
per year 5*44 per year 5*44 per year 5*44 per year
Frequency
(for 1 of the 3 less experienced)
- - (111/6)
per year - - - - - - - 5*44 per year
Frequency for 1 of the 3 workers of the internal team dedicated to the repackaging
- - - - - 89/3 per year - - - - -
Frequency for 1 of the 2 workers of internal maintenance team
- - - 18/2 per
year - - - - - - -
Frequency for 1 of the 2 workers of external maintenance team
- - - - 0.5 per
year (per workers)
- - - - - -
Frequency for 1 of the 3 worker of laboratory team
50/3 per year 50/3 per
year - -
-
- - - - - -
Table 94:Table with durations and frequencies at Souriau – Use-1
CHEMICAL SAFETY REPORT
109
Use-2:
Time/frequency
CS-2:
Sampling of
bath
CS-3: Lab
analysis
CS-4: Other, next to
the bath CS-6:
Repackaging,
solid
CS-9:
Manual
addition,
liquid
CS-10:
Manual
addition,
solid
CS-13: Manual
dipping in
chromium bath,
near field
CS-14: Manual
dipping in
rinsing bath,
near field
CS-15:
Treatment
bath, far
field For
drain Others
Duration of the task 2 min 5 min 2 min 60 min
300 min
(2 workers)
15 min 5 min 5 min 5 min for a whole day
per worker 5 min for a whole day per worker
420 min per worker
Frequency for all the workers 25/year 25/year 187/year 36/year 0.5/year 115/year 72/year 115/year 5*44 per year for each
worker 5*44 per year for
each worker 5*44 per year
for each worker
9 w
ork
ers
on
th
e
tre
atm
en
t lin
e Frequency
(for 1 of the 3 more experienced)
- - 187/9
per year - - - 72/3 per year 115/3 per year
5*44 per year for each worker
5*44 per year for each worker
5*44 per year for each worker
Frequency
(for 1 of the 6 less experienced)
- - 187/9
per year - - - - - - -
5*44 per year for each worker
Frequency for 1 of the 3 workers of the internal team dedicated to the repackaging
- - - - - 115/3 per year - - - - -
Frequency for 1 of the 2 workers of internal maintenance team
- - - 36/2 per
year - - - - - - -
Frequency for 1 of the 2 workers of external maintenance team
- - - - 0.5 per
year (per workers)
- - - - - -
Frequency for 1 of the 3 worker of laboratory team
25/3 per year 25/3 per
year - -
- - - - - - -
Table 95: Table with durations and frequencies at Souriau – Use-2
CHEMICAL SAFETY REPORT
110
Use-3 :
Time/frequency CS-2: Sampling
of bath
CS-3: Lab
analysis
CS-4: Other, next to the bath CS-6: Repackaging,
solid
CS-10: Manual
addition, solid
CS-15: Treatment
bath, far field For drain Others
Duration of the task 2 min 5 min 2 min 60 min 300 min
(2 workers) 15 min 5 min 420 min
Frequency for all the workers 150/an 150/an 67/year 6/year 0.5/year 67/year 67/year 5*44 per year for each
worker
6 w
ork
ers
on
th
e
tre
atm
en
t lin
e Frequency
(for 1 of the 3 more experienced) - - 67/6 per year - - - 67/3 per year
5*44 per year for each worker
Frequency
(for 1 of the 3 less experienced) - - 67/6 per year - - - -
5*44 per year for each worker
Frequency for 1 of the 3 workers of the internal team dedicated to the repackaging
- - - - - (67/3) per year - -
Frequency for 1 of the 2 workers of internal maintenance team
- - - 6/2 per
year - - - -
Frequency for 1 of the 2 workers of external maintenance team
- - - 0.5/year (per
worker) - - -
Frequency for 1 of the 3 worker of laboratory team
150/3
per year
150/3
per year - - - - - -
Table 96: Table with durations and frequencies at Souriau – Use-3
Chemical Safety Report
111
10.1.1.5. Connecteurs Electriques Deutsch (TE Connectivity Evreux - FR)
On the TE Connectivity’s site of Evreux, the following contributing scenarios are
involved:
- CS-4: Other activities next to the bath
- CS-9: Addition of liquid to bath (for Use-1only)
- CS-10: Addition of solid to bath (for Use-2 only)
- CS-13: Dipping connector parts in treatment bath, in the worker’s near field
(for Use-1 only)
- CS-14: Dipping connector parts in rinsing baths, in the worker’s near field
- CS-15: Treatment baths in the workers’ far field
It should be noted that:
- No sampling or lab analyses are performed for the Use-1 on the site of TE
Connectivity at Evreux (Connecteurs Electriques Deutsch).
- Partial drain of bath and partial maintenance are performed 6 times a year
and they are grouped into contributing scenario 4. All these operations are
included in the 15 minutes presented below.
- Additional manual dipping can occur for Use-1 in order to adjust the
automatic treatment of connector parts. This activity does not exist in the
context of Use-2.
The duration and frequencies are presented as follow:
Use-1
Time/frequency
CS-4: Other, next to
the bath
CS-9:
Manual
addition,
liquid
CS-13: Manual
dipping in
chromium bath,
near field
CS-14: Manual
dipping in rinsing
bath, near field
CS-15:
Treatment
bath, far
field For drain Others
Duration of the task 15 min 300min 15 min 10 min for a whole day
for one worker 10 min for a whole day for one worker
420 min per worker
Frequency
(for 1 main technician of the plating shop)
6 per year Not
concerned 6 per year 44 per year 44 per year 5*44 per year
Frequency
(for 1 substitute technician of the plating shop)
1 per year Not
concerned 1 per year 5 per year 5 per year 5*5 per year
Frequency
(for 1 of the 20 workers of the plating shop)
Not concerned
Not concerned
Not concerned Not concerned Not concerned 5*44 per year
Frequency
(for 1 of the 2 workers for maintenance)
Not concerned
1 per year Not concerned Not concerned Not concerned Not concerned
Table 97: Table with durations and frequencies at Connecteurs Electriques Deutsch – Use-1
CHEMICAL SAFETY REPORT
112
For the Use-1, there is 1 main technician working on the automated treatment line.
The duration of work during one year is considered as 44weeks per year. One more
technician is substituted for the actual one in case of vacation or departure. The
frequencies for the substitute worker are considered for 5 weeks of work per year on
the treatment line.
Use-2
Time/frequency
CS-2:
Sampling
of bath
CS-3: Lab
analysis
CS-4: Other, next to the
bath CS-10: Manual
addition, solid
CS-15:
Treatment
bath, far field For drain Others
Duration of the task 2 min 5 min 15 min 30 min 15 min 420 min
Frequency
(for 2 technician of the plating shop)
Not concerned
Not concerned
6 pear year Not concerned 6 pear year 5*44 per year/
worker
Frequency
(for 1 substitute technician of the plating shop)
Not concerned
Not concerned
1 per year Not concerned 1 per year 5*5 per year
Frequency
(for 1 worker of the laboratory)
1 per week
(44 per year) 1 per week
(44 per year) Not concerned Not concerned Not concerned Not concerned
Frequency
(for 20 workers of the plating shop)
Not concerned
Not concerned
Not concerned Not concerned Not concerned 5*44 per year /
worker
Frequency
(for 1 of the 2 workers for maintenance)
Not concerned
Not concerned
Not concerned 1/year Not concerned Not concerned
Table 98: Table with durations and frequencies at Connecteurs Electriques Deutsch – Use-2
As for Use-1, for the Use-2 there is one substitute technician and the frequencies are
considered for 5 weeks of work on the treatment line.
CHEMICAL SAFETY REPORT
113
10.1.1.6. Tyco Electronics UK Ltd (TE Connectivity Hastings - UK)
On the TE Connectivity’s site of Hasting, the following contributing scenarios are
involved:
- CS-2: Sampling of bath
- CS-3: Lab analysis
- CS-4: Other activities next to the bath
- CS-6: Repackaging of solid by using other local ventilation
- CS-9: Addition of liquid to bath
- CS-13: Dipping connector parts in treatment bath, in the worker’s near field
- CS-14: Dipping connector parts in rinsing baths, in the worker’s near field
- CS-15: Treatment baths in the workers’ far field
It should be noted that partial drain of bath and maintenance are performed every
days and they are grouped into contributing scenario 4. All these operations are
included in the 10 minutes presented below.
The duration and frequencies are presented as follow:
Use-1
Time/frequency
CS-2:
Sampling
of bath
CS-3: Lab
analysis
Cs-4:
Other,
next to the
bath
CS-9:
Manual
addition,
liquid
CS-13: Manual
dipping in
chromium
bath, near
field
CS-14:
Manual
dipping in
rinsing bath,
near field
CS-15:
Treatment
bath, far
field
Duration of the task
2 min 10 min 10 min 10 min 15 min for a whole
day 30 min for a whole day
420 min
Frequency
(for 11 workers of the plating shop)
1 per day 1 per day 1 per day 1 per day 1 per day 1 per day 5*44 per year/
worker
Frequency
(for 1 of the 11 workers of the plating shop)
(1*5*51)/11 per year
(1*5*51)/11 per year
(1*5*51)/11 per year
(1*5*51)/11 per year
(1*5*51)/11 per year
(1*5*51)/11
per year
5*44
per year
Table 99: Table with durations and frequencies at Tyco Electronics UK Ltd – Use-1
Use-2
The duration and frequencies presented for Use-1 are identical for Use-2.
CHEMICAL SAFETY REPORT
114
10.1.2. Comparison between modelling and monitoring
10.1.2.1. Amphenol Limited
Air monitoring of the workplace was undertaken on the site of Amphenol Ltd in
2015 in order to control exposure to hexavalent chromium compounds. These results
are compared to modelling results in the table below. Two measurements were
performed: one by sampling air with a pump worn by an operator (personal sample),
the other one by using a pump fixed on a support in the centre of the plating area
(static sample).
In order to compare the modelled results with measured concentrations,
according to the section 10.1.1.1. the following description of activity is given as
follow:
- Sampling of bath,
- Addition of liquid to the bath
- dipping in chromium bath,
- dipping in rinsing bath,
- treatment bath in the worker’s far field
- drying of connector parts.
Consequently, the measured and modelled exposures are as follows:
Monitoring results (µg/m3) Modelling results (µg/m3)
Static measurement (sampled during 240mins)
<2 (DL*) Worker far field 0,0053
Personal measurement (average over 480mins)
<1 (DL*) Main activities of plater (average over 480mins)
0,145
*DL = Detection Limit (used by the laboratory that is carrying out the analysis
and converted to µg/m3)
N.B. All the original reports are presented in annex IV
Consequently the results presented in the 2015 monitoring report indicate that
the level of exposure at Amphenol Limited seems to be as low as the modelled
exposures, as they are below the detection limit of the methodology usually used in
the UK.
It should be emphasised that total chromium (whatever the oxidation state) was
also measured, both in 2015 and in 2014. During the monitoring campaigns of the
last 2 years (2015 & 2014), no measurement results of total chromium exceeded the
detection limit of 1 µg/m3 for static samples (1 sample considered)and 1 µg/m3
(considering a 480 min exposure) for personal samples (a total of 5 samples being
considered).
The monitoring results on the site of Amphenol Limited indicate that the level of exposure
at Amphenol Limited seems to be as low as the modelled exposures.
CHEMICAL SAFETY REPORT
115
10.1.2.2. Amphenol Socapex
On the site of Amphenol Socapex, since 2015, air monitoring at the workplace is
performed each year in order to control the exposure to hexavalent chromium
compounds. The results of the 2015 campaign are thus compared to modelling
results in the following table.
In order to compare the modelled results with measured concentrations,
according to the section 10.1.1.2. the following description of activity is given in the
table according to the title of contributing scenario except for the workers of the
plating shop at a treatment line with chromium for who the following tasks have
been considered : activities next to the bath, dipping in chromium bath, dipping in
rinsing baths and far field exposure.
Measured concentrations (µg/m3) Modelling concentrations (µg/m3)
Workers of the plating shop with addition of liquid (Personal measurement, average on 480mins)
0.009 0.77
Workers of the plating shop - treatment line with chromium
(Personal measurement, average on 480mins)
<0.030 (QL)
0.065
<0.010 (QL)
Laboratory worker (Personal measurement, average on 480mins)
<0.009 (QL) 0.019
Static measurement in the centre of the plating shop (far field exposure to chromium)
<0.010 (QL)
0.0053 Workers of the plating shop - not at a treatment line with chromium (far field exposure to chromium)
(Personal measurement, average on 480mins)
<0.011 (QL)
<0.011 (QL)
Addition of liquid (Personal measurement, sampled 15mins)
<0.327 (QL) 6.0
*QL = Quantification Limit (used by the laboratory that is carrying out the analysis and converted to µg/m3)
N.B. All the original reports are presented in annex IV
Consequently the results presented in the monitoring report of the 2015
campaign indicate that the level of exposures at Amphenol Socapex seems to be as
low as the modelled exposures because they are below the quantification limit.
The monitoring results on the site of Amphenol Socapex attest that the modelling approach
is mainly an over-estimation and tie in with a precautionary approach.
CHEMICAL SAFETY REPORT
116
10.1.2.3. ITT Cannon
Air monitoring of the workplace was undertaken on the site of ITT Cannon in
2009 in order to control exposure to hexavalent chromium compounds in the
context of national compliance. The sample was performed in order to measure the
ambient air concentration in the working area next to the operators considered in
this CSR. The result is compared to modelling results in the table below.
Monitoring results (µg/m3) Modelling results (µg/m3)
Static measurement (sampled during 120mins)
<5 (DL*) Worker’s far field exposure 0,0053
*DL = Detection Limit (used by the laboratory that is carrying out the analysis
and converted to µg/m3)
N.B. All the original reports are presented in annex IV
Consequently the results presented in the 2009 monitoring report indicate that
the level of exposure at ITT Cannon seems to be as low as the modelled exposures,
as they are below the detection limit of the methodology usually used in Germany.
It should be emphasised that in Germany there is no official occupational
exposure limit at the workplace for hexavalent chromium. Nevertheless ITT Cannon
will perform new measurement campaign at the workplace in order to verify the
compliance with the exposure level described in this CSR.
The monitoring results on the site of ITT Cannon indicate that the level of exposure at ITT
Cannon seems to be as low as the modelled exposures.
CHEMICAL SAFETY REPORT
117
10.1.2.4. Souriau
On the site of Souriau, air monitoring at the workplace is performed each year in
order to control the exposure to hexavalent chromium compounds. In the following
table, the results of three different monitoring campaign performed during the years
2014 and 2015 are compared with modelling results. All these results are performed
by sampling air with a pump worn by operator except for “treatment bath, far field”
for which the pump was on a fixed support in the plating shop.
As presented in section 10.1.1.4., the more experienced workers are the most
highly exposed workers of the treatment line (compared to the less experienced).
Consequently, during a monitoring campaign, the strategy for controlling the highest
possible exposure at the workplace is to control the more experienced worker. Thus
the device for sampling (pump with filter) is worn by the more experienced worker.
During the three last campaigns the measurement were performed on automated
lines only.
In order to compare the modelled results with measured concentrations,
according to the section 10.1.1.4. the following description of activity is given as
follow:
- Repackaging : One worker of the team dedicated to repackaging
performed one repackaging of solid
- Activities on automated line, more experienced worker 1: activity next to
the bath (for drain), manual addition of liquid, treatment bath in the
worker’s far field.
- Activities on automated line, more experienced worker 2: activity next to
the bath (for drain), manual addition of solid, treatment bath in the
worker’s far field.
Consequently, the measured and modelled exposures are presented as follow:
CHEMICAL SAFETY REPORT
118
Activity Measured concentration (µg.m-
3) Modelled concentration (µg.m-3)
Measurement of the 2015 campaign
Repackaging 0,153 0,191
Activities on automated line
more experienced worker experienced worker
1 experienced worker
2
0,026
0,199 0,147 0,035
0,027
Measurement of the 2014 campaign 2
Repackaging <0,156 (QL*) 0,191
Activities on automated line
more experienced worker experienced worker
1 experienced worker
2
<0,184 (QL)
0,199 0,147 <0,152 (QL)
<0,156 (QL)
<0,159 (QL)
treatment bath, far field <0,17 (QL) 0,0053
Measurement of the 2014 campaign 1
Activities on automated line
more experienced worker experienced worker
1 experienced worker
2
<0,156 (QL)
0,199 0,147 <0,157 (QL)
<0,155 (QL) *QL = Quantification limit
N.B. All the original reports are presented in annex IV
As presented in this table, the measured air concentration is much lower than
the modelled exposure. The quantification limit (QL) is too high to provide an exact
level of hexavalent chromium measured before 2015, but most of these results are
still lower than the modelling results.
Consequently, the monitoring reports attest that the level of hexavalent
chromium estimated with the modelling approach on the site of Souriau is an over-
estimation. Thus, using the modelling approach tie in with a precautionary approach.
The monitoring results on the site of Souriau attest that the modelling approach is mainly
an over-estimation and tie in with a precautionary approach.
CHEMICAL SAFETY REPORT
119
10.1.2.5. Connecteurs Electriques Deutsch (TE Connectivity Evreux - FR)
Air monitoring of the workplace was undertaken on the site of Connecteurs
Electriques Deutsch in 2015 in order to control exposure to hexavalent chromium
compounds. These results are compared to modelling results in the table below. Six
measurements were performed by sampling air with a pump worn by operators
(personal sample). Some measurements are performed during 480mins whereas
others are short term values.
In order to compare the modelled results with measured concentrations, according
to the section 10.1.1.5. the following description of activity is given in the table
according to the title of contributing scenarios. Consequently, the measured and
modelled exposures are as follows:
Population Measured concentration
(µg.m-3) Modelled concentration
(µg.m-3)
Main technician of the plating shop 0,02 0.06
Workers of the plating shop <0,03 (QL)
0.0053 <0,02 (QL)
Manual addition, liquid <0,73 (QL)
18.00 0,93
Manual dipping in chromium bath, near field
<0,57 (QL) 0.11
*QL = Quantification Limit (used by the laboratory that is carrying out the analysis and converted to µg/m3)
N.B. All the original reports are presented in annex IV
Consequently the results presented in the 2015 monitoring report indicate that
the level of exposure at Connecteurs Electriques Deutsch seems to be lower or as
low as the modelled exposures, as they are below the quantification limit.
The monitoring results on the site of Connecteurs Electriques Deutsch attest that the
modelling approach is mainly an over-estimation and tie in with a precautionary approach.
CHEMICAL SAFETY REPORT
120
10.1.2.6. Tyco Electronics UK Ltd (TE Connectivity Hastings - UK)
Monitoring results are not communicated by the site of TE Connectivity at Hasting
because the monitoring report has been judged too sensitive. This is to protect
the personal information of the employees on site.
CHEMICAL SAFETY REPORT
121
10.1.3. Risk characterisation
As discussed previously in chapter 9.1.2.3, the risk characterisation will be based on
the RAC/27/2013/06 Rev.1, which establishes a reference dose response
relationship for the carcinogenicity of hexavalent chromium.
Excess of lung cancer risk: 4*10-3 per μg Cr(VI)/m3 based on a 40-year working life
(8h/day, 220 days per year).
Moreover, and since chromium exposures are due to the volatility of a liquid
mixture, we estimated the cancer risk mainly for lung cancer and maximised the
excess of cancer risk without considering the risk for small intestine cancer.
Based on all of this information, the tables below show the calculation of the excess
risk for lung cancer weighted by the working conditions on the industrial site.
Weighted excess risk of lung cancer Value
Excess risk of lung cancer. per µg/m3 of Cr(VI)
based on 40 working years. 220 days per year.
8h per day (RAC 2013) 4x10-3
Excess risk of lung cancer. per µg/m3 of Cr(VI)
based on 1 working year. 220 days per year. 8h
per day 1x10-4
Excess risk of lung cancer. per µg/m3 of Cr(VI)
based on 4 working years. 220 days per year.
8h per day 4x10-4
Excess risk of lung cancer. per µg/m3 of Cr(VI)
based on 7 working years. 220 days per year.
8h per day 7x10-4
Excess risk of lung cancer. per µg/m3 of Cr(VI)
based on 12 working years. 220 days per year.
8h per day 1.2x10-3
Table 100: Excess risk of lung cancer calculation
Considering the data presented in the above table and the exposure estimations
based on the modelling approach, the excess risks are calculated for each use in the
following tables.
In the following sections the global exposure and risks for each uses considered are
presented for each site. It has to be stressed that the average of exposure is
calculated by taking into account the respiratory protective equipment (RPE) if it is
used as indicated in the previous sections.
The raw exposure estimations considered for each contributing scenario are
summarised in the following table:
CHEMICAL SAFETY REPORT
122
Contributing Scenario Raw exposure without RPE
(µg.m-3) Raw exposure with RPE
(µg.m-3)
CS-2 Sampling of bath 1,7 No RPE used
CS-3 Lab analysis 0,046 No RPE used
CS-4 Other activities next to the bath 1,7 No RPE used
CS-5 Repackaging of solid by using fume cupboard
1,1 0,11
CS-6 Repackaging of solid by using other local ventilation
6,1 0,61
CS-7 Repackaging of solid without local ventilation
140 3,5
CS-8 Repackaging of liquid 50 5
CS-9 Addition of liquid to bath 18 1,8
CS-10 Addition of solid to bath 13 1,3
CS-11 Addition of liquid in bath via pumping system
0,67 No RPE used
CS-12 Handling of articles Not for inhalation exposure
(dermal exposure only) Not for inhalation exposure
(dermal exposure only)
CS-13 Dipping connector parts in treatment bath, in the worker’s near field
0,17 No RPE used
CS-14 Dipping connector parts in rinsing baths, in the worker’s near field
0,17 No RPE used
CS-15 Treatment baths in the workers’ far field
0,0053 No RPE used
CS-16 Drying connector parts 6,7 0,67
Table 101: Summary of the raw exposures (modelled concentrations)
CHEMICAL SAFETY REPORT
123
10.1.3.1. Amphenol Limited
Use-1
Population Average of exposure (µg.m-3)
Lab analysts 8.29E-05
Platers 1.30E-02
Maintenance team 3.86E-03
Table 102: Average exposures at Amphenol Limited – Use-1
Population Individual excess risk of lung
cancer Total excess risk of lung cancer
Lab analysts 9.94E-08 1.99E-07
Platers 1.56E-05 1.56E-04
Maintenance team 4.64E-06 9.27E-06
Total 1.65E-04
Table 103: Excess risks at Amphenol Ltd - Use-1
Use-2
Population Average of exposure (µg.m-3)
Lab analysts 5.49E-04
Platers 2.34E-02
Maintenance team 1.93E-03
Table 104: Average exposures at Amphenol Ltd – Use-2
Population Individual excess risk of lung
cancer Total excess risk of lung cancer
Lab analysts 3.84E-07 7.68E-07
Platers 1.64E-05 1.64E-04
Maintenance team 1.35E-06 2.70E-06
Total 1.67E-04
Table 105: Excess risks at Amphenol Ltd - Use-2
Excess risks due to combined exposures
Population Individual excess risk of lung
cancer Total excess risk of lung cancer
Lab analysts 4.84E-07 9.67E-06
Platers 3.20E-05 3.20E-04
Maintenance team 5.99E-06 1.20E-05
Total 3.33E-04
Table 106: Excess risks at Amphenol Ltd – combined exposure
CHEMICAL SAFETY REPORT
124
10.1.3.2. Amphenol Socapex
Use-1
Population Average of exposure (µg.m-3)
workers of the plating shop 9.65E-03
Technicians or enginneers 6.63E-04
Table 107: Average exposures at Amphenol Socapex – Use-1
Population Individual excess risk of lung cancer Total excess risk of lung cancer
workers of the plating shop 1.16E-05 1.16E-04
Technicians or enginneers 7.95E-07 3.18E-06
Total 1.19E-04
Table 108: Excess risks at Amphenol Socapex - Use-1
Use-2
Population Average of exposure (µg.m-3)
workers of the plating shop 1.31E-02
Lab worker 2.03E-03
Technicians or enginneers 6.63E-04
Table 109: Average exposures at Amphenol Socapex – Use-2
Population Individual excess risk of lung cancer Total excess risk of lung cancer
workers of the plating shop 9.18E-06 9.18E-05
Lab worker 1.42E-06 1.42E-06
Technicians or enginneers 4.64E-07 1.86E-06
Total 9.51E-05
Table 110: Excess risks at Amphenol Socapex - Use-2
Excess risks due to combined exposures
Population Individual excess risk of lung cancer Total excess risk of lung cancer
workers of the plating shop 2.08E-05 2.08E-04
Technicians or enginneers 1.26E-06 5.04E-06
Total 2.13E-04
Table 111: Excess risks at Amphenol Socapex - combined exposure
CHEMICAL SAFETY REPORT
125
10.1.3.3. ITT Cannon
Use-1
Population Average of exposure (µg.m-3)
workers of the plating shop 8.10E-03
Table 112: Average exposures at ITT Cannon – Use-1
Population Individual excess risk of lung cancer Total excess risk of
lung cancer
workers of the plating shop 9.72E-06 5.83E-05
Table 113: Excess risks at ITT Cannon - Use-1
Use-2
Population Average of exposure (µg.m-3)
workers of the plating shop 8.10E-03
Table 114: Average exposures at ITT Cannon – Use-2
Population Individual excess risk of lung cancer Total excess risk of
lung cancer
workers of the plating shop 5.67E-06 3.40E-05
Table 115: Excess risks at ITT Cannon - Use-2
Excess risks due to combined exposures
Population Individual excess risk of lung cancer Total excess risk of lung
cancer
workers of the plating shop 1.54E-05 9.24E-05
Table 116: Excess risks at ITT Cannon - combined exposure
CHEMICAL SAFETY REPORT
126
10.1.3.4. Souriau
Use-1
Population Average of exposure (µg.m-3)
Worker on the treatment line, experienced 1.12E-02
Worker on the treatment line, non-experienced 5.23E-03
Worker for repackaging 2.57E-03
Internal maintenance team 8.69E-03
external maintenance team 2.41E-03
laboratory team 5.73E-04
Table 117: Average exposures at Souriau – Use-1
Population Individual excess risk of
lung cancer Total excess risk of lung
cancer
Worker on the treatment line, experienced 1.35E-05 4.04E-05
Worker on the treatment line, non-experienced 6.28E-06 1.88E-05
Worker for repackaging 3.08E-06 9.25E-06
Internal maintenance team 1.04E-05 2.09E-05
external maintenance team 2.90E-06 5.80E-06
laboratory team 6.88E-07 2.06E-06
Total 9.72E-05
Table 118: Excess risks at Souriau - Use-1
Use-2
Population Average of exposure (µg.m-3)
Worker on the treatment line, experienced 1.33E-02
Worker on the treatment line, non-experienced 5.31E-03
Worker for repackaging 3.65E-03
Internal maintenance team 1.91E-02
external maintenance team 2.66E-03
laboratory team 3.15E-04
Table 119: Average exposures at Souriau – Use-2
Population Individual excess risk
of lung cancer Total excess risk of lung
cancer
Worker on the treatment line, experienced 9.28E-06 2.78E-05
Worker on the treatment line, non-experienced 3.71E-06 2.23E-05
Worker for repackaging 2.56E-06 7.67E-06
Internal maintenance team 1.34E-05 2.68E-05
external maintenance team 1.86E-06 3.72E-06
laboratory team 2.21E-07 6.62E-07
Total 8.89E-05
Table 120: Excess risks at Souriau - Use-2
CHEMICAL SAFETY REPORT
127
Use-3
Population Average of exposure
(µg.m-3)
Worker on the treatment line, experienced 6.37E-03
Worker on the treatment line, non-experienced 5.00E-03
Worker for repackaging 1.94E-03
Internal maintenance team 2.90E-03
external maintenance team 2.41E-03
laboratory team 1.72E-03
Table 121: Average exposures at Souriau – Use-3
Population Individual excess
risk of lung cancer Total excess risk of
lung cancer
Worker on the treatment line, experienced 2.55E-06 7.65E-06
Worker on the treatment line, non-experienced 2.00E-06 6.00E-06
Worker for repackaging 7.74E-07 2.32E-06
Internal maintenance team 1.16E-06 2.32E-06
external maintenance team 9.66E-07 1.93E-06
laboratory team 6.88E-07 2.06E-06
Total 2.23E-05
Table 122: Excess risks at Souriau –Use-3
Excess risks due to combined exposures
Population Individual excess
risk of lung cancer Total excess risk of
lung cancer
Worker for repackaging 6.42E-06 1.92E-05
Internal maintenance team 2.50E-05 5.00E-05
external maintenance team 5.72E-06 1.14E-05
laboratory team 1.60E-06 4.79E-06
Table 123: Excess risks at Souriau – combined exposure
CHEMICAL SAFETY REPORT
128
10.1.3.5. Connecteurs Electriques Deutsch (TE Connectivity Evreux - FR)
Use-1
Population Average of exposure (µg.m-3)
main technician of the plating shop 9.04E-03
substitute technician 1.19E-03
workers of the plating shop 4.64E-03
worker for maintenance 4.83E-03
Table 124: Average exposures at Connecteurs Electriques Deutsch – Use-1
Population
Individual excess risk of lung cancer
Total excess risk of lung cancer
main technician of the plating shop 1.08E-05 1.08E-05
substitute technician 1.42E-06 1.42E-06
workers of the plating shop 5.57E-06 1.11E-04
worker for maintenance 5.80E-06 1.16E-05
Total 1.35E-04
Table 125: Excess risks at Connecteurs Electriques Deutsch – Use-1-
Use-2
Population Average of exposure (µg.m-3)
main technician of the plating shop 1.72E-02
substitute technician 2.62E-03
laboratory worker 1.51E-03
workers of the plating shop 4.64E-03
worker for maintenance 4.83E-04
Table 126: Average exposures at Connecteurs Electriques Deutsch – Use-2
Population
Individual excess risk of lung cancer
Total excess risk of lung cancer
main technician of the plating shop 1.20E-05 2.40E-05
substitute technician 1.83E-06 1.83E-06
laboratory worker 1.06E-06 1.06E-06
workers of the plating shop 3.25E-06 6.49E-05
worker for maintenance 3.38E-07 6.76E-07
Total 9.25E-05
Table 127: Excess risks at Connecteurs Electriques Deutsch – Use-2
CHEMICAL SAFETY REPORT
129
Excess risks due to combined exposures
Population Individual excess risk of lung cancer
Total excess risk of lung
cancer
main technician of the plating shop 2.29E-05 3.49E-05
substitute technician 3.25E-06 3.25E-06
workers of the plating shop 8.81E-06 1.76E-04
worker for maintenance 6.13E-06 1.23E-05
Total 2.27E-04
Table 128: Excess risks at Connecteurs Electriques Deutsch –combined exposure
CHEMICAL SAFETY REPORT
130
10.1.3.6. Tyco Electronics UK Ltd (TE Connectivity Hastings - UK)
Use-1
Population Average of exposure (µg.m-3)
workers of the plating shop 1.48E-02
Table 129: Average exposures at Tyco Electronics UK Ltd – Use-1
Population Individual excess risk of lung cancer Total excess risk of lung cancer
workers of the plating shop 1.78E-05 1.96E-04
Table 130: Excess risks at Tyco Electronics UK Ltd – Use-1
Use-2
Population Average of exposure (µg.m-3)
workers of the plating shop 1.48E-02
Table 131: Average exposures at Tyco Electronics UK Ltd – Use-2
Population Individual excess risk of lung cancer Total excess risk of lung cancer
workers of the plating shop 1.04E-05 1.14E-04
Table 132: Excess risks at Tyco Electronics UK Ltd – Use-2
Excess risks due to combined exposures
Population Individual excess risk of lung cancer Total excess risk of lung cancer
workers of the plating shop 2.82E-05 3.10E-04
Table 133: Excess risks at Tyco Electronics UK Ltd – combined exposure
CHEMICAL SAFETY REPORT
131
10.1.3.7. General conclusion
The total excess risks per use are presented for each legal entity in the table below :
Site Total excess risk for
Use-1 Total excess risk for
Use-2 Total excess risk for
Use-3
Amphenol Limited 1,65E-04 1,67E-04 -
Amphenol Socapex 1,19E-04 9,51E-05 -
ITT Cannon 5,83E-05 3,40E-05 -
Souriau 9,72E-05 8,89E-05 2,23E-05
Connecteurs electriques Deutsch 1,35E-04 9,25E-05 -
Tyco Electronics UK Ltd 1,96E-04 1,14E-04 -
Table 134: Summary of total excess risks
The maximal individual excess risks considered for each use and for each legal entity
are presented in the table below:
Site Maximal individual
excess risk for Use-1 Maximal individual
excess risk for Use-2 Maximal individual
excess risk for Use-3
Amphenol Limited 1,56E-05 1,64E-05 -
Amphenol Socapex 1,16E-05 9,18E-06 -
ITT Cannon 9,72E-06 5,67E-06 -
Souriau 1,35E-05 9,28E-06 2,55E-06
Connecteurs electriques Deutsch 1,08E-05 1,20E-05 -
Tyco Electronics UK Ltd 1,78E-05 1,04E-05 -
Table 135: Summary of maximal individual excess risks
The decision point for 'acceptable' lifetime (i.e., a working life of 40 years) cancer risk
levels used for individual risk levels for workers are generally around 10-5 but higher
or lower levels have been considered to be tolerable under certain circumstances22.
All the individual excess of risk for all the workers involved in the operations using
hexavalent chromium as described in this CSR does not exceed the order of
magnitude of 10-5.
22 ECHA Guidance on information requirements and chemical safety assessment,
chapiter R8, Appendix R. 8-14 page 141.
CHEMICAL SAFETY REPORT
132
10.1.4. Analysis of uncertainties and improvement of management
The exposures considered in this CSR for the Uses-1,2&3 are based on several
hypotheses. They were made in order to respect a conservative approach and
consequently, led to an overestimation of the exposure. They mainly concern the
following items:
1. Definition of the APF:
The applicant made the choice to tie in with a precautionary approach by
using an APF of 10 for all the RPE used, except for the specific case of
Amphenol Limited where an APF of 40 is used for one specific RPE. These
APF used would have been higher depending of the country considered (for
example in Germany where an APF of 30 can be used), but the applicant
made the choice to present an assessment with no potential doubt on the
RPE used.
2. Modelling approach
All measurements performed on CMG’ sites and presented in this CSR show
lower values than the modelling estimations. Consequently, modelling
estimations are considered as the maximum level of exposures at the
workplace. Even if the modelling approach is demonstrated to be an over
estimation, the applicant made the choice to use this approach in order to be
sure that the assessment is covering all the tasks involved in the use of
hexavalent chromium.
3. Inputs for modelling
The inputs used for modelling cannot be strictly representative of the
realistic use performed on site. In order to be completely transparent, for all
the contributing scenarios, the inputs used are compared to the condition of
use on all the CMG’ sites in a columns table in annex I. All the inputs have
been chosen in order not to both over-estimate the exposure estimation for
each contributing scenario and consider the worst case scenario in order to
cover all the sites. Consequently, the inputs for each contributing scenarios
are the worst inputs to be considered and thus leading to an over-
estimation.
4. Duration of tasks and frequency used
The duration and the frequencies of the tasks were considered by taking into
account the maximum possible increase of activity presented in accordance
with the tonnage estimation. It does not probably reflect the exact
frequencies and duration involved during the review period, but the
applicant made the choice to present the maximum realistic estimation in
order to cover potential future activities. Furthermore, the exposure due to
ambient air in the plating shop considered through the contributing scenario
15 (CS-15) is not split between the Uses-1, 2 & 3. Consequently, for this far
field exposure, there is a double count in the global excess risk calculation.
CHEMICAL SAFETY REPORT
133
Hence, the excess risk previously presented can be considered as the
maximum consideration, taking into account all uncertainties.
Furthermore, the compliance with the operating conditions described in this
CSR will be periodically controlled and the efficiency of the risk management
measures (mainly ventilations and RPE) will be regularly verified according to a
written procedure for each site. New protective equipment are available for all
workers in order to maintain the possibility to change them easily.
All workers involved are made aware of the best practices of work to ensure
that the level of exposure is as low as possible. They are also trained adequately to
the identification of the hazardous substances and associated practices through
formal education procedure.
By now, the applicant will furthermore perform measurements adapted to the
contributing scenarios in order to confirm that the measured level of exposure will
be lower than the levels estimated in this CSR by modelling approach. Consequently,
measurement at the workplace will be regularly performed in order to verify the
main raw exposures estimated with the modelling approach.
The applicant therefore took the opportunity of this CSR to critically assess
RMMs and OCs in place. In spite of the encouraging results obtained, CMG members
will engage in the improvements described above so as to continuously reduce the
risk over the review period.