original detector tubes sheet

Information Data Sheet

Detector Tube Acrolein-0.1

1. Application Detection of acrolein ( acrylic aldehyde, C3H4O ) in air or technical gases.

2. Detector Tube Sampling Pump MSA AUER Gas-Tester®

IIH, Gas-Tester® I / ThumbPump™-Sampler, Toximeter®

II, MSA Kwik-Draw™-Pump or other suitable detector tubes pumps. Observe respective instructions for use.

3. Measuring Range (0.2 ... 10 ) ppm acrolein at 20 pumpstrokes (n=20)

0.1 ppm acrolein at 40 pumpstrokes are equivalent to 0.2 ppm on the n=20-scale.

4. Chemical Reaction and Color Change Reaction of acrolein with permanganate. Color change: pink → light brown/yellow.

5. Ambient Conditions During Sampling Detector tubes can be used without compensation of the reading between 5 °C (41 °F) and 35 °C

(95 °F). Water vapor between 2 and 20 g H2O/ m3 ( 30 % rh at 5 °C [41 °F]; 8.7% rh up to 87 % rh at 25 °C [77 °F]; 51 % rh at 35 °C [95 °F]) will not affect the stain length.

6. Interferences and Cross Sensitivities Many organic compounds with C=C-double bonds are also indicated.

North America Mine Safety Appliances Company 1000 Cranberry Woods Drive Cranberry Twp., PA 16066 Phone 1-800-MSA-2222 Fax 1-800-967-0398 E-Mail [email protected]

European Head Office & International Sales [Africa, Asia, Australia, Latin America, Middle East] MSA EUROPE Thiemannstrasse 1 D-12059 Berlin Phone +49 [30] 68 86-0 Telefax +49 [30] 68 86-15 17 E-Mail [email protected] www.msa-tubes.com


Detector Tube Hydrazine-0.1

1. Application D etection of hydrazine (N2H4) in air or in technical gases.




3. Measuring Range (0.1 ... 3) ppm hydrazine at 5 strokes (n=5)

(0.5 ... 10) ppm hydrazine at 2 strokes (n=2)

4. Chemical Reaction and Color Change Change of pH-value causes color change of an acid-base-indicator.

Color change: yellow

→ blue.

5. Ambient Conditions During Sampling Detector tubes can be used without compensation of reading between 5 °C and 40 °C (41 °F and

104 °F) and in the humidity range up to 20 g/m3 (87 % rh at 25 °C [77 °F], 40 % rh at 40 °C [104 °F].

6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, propane, butanes, carbon monoxide.

– carbon dioxide up to 1000 ppm. – hydrogen sulfide, nitrogen dioxide up to 10 ppm.

b) Other alkaline gases (amins, ammonia) will be indicated. The sensitivity of indication is different.

c) Strong acidic gases (e.g. sulfur dioxide, hydrogen chloride, chlorine, phosgene are not indicated but will shorten stain length of hydrazine even when concentrations correspond to measuring range of detector tube.




Detector Tube H20-MP(mg/m3)

1. Application Detection of water vapor H2O) in compressed air.

2. Sampling Procedure Monitoring set for compressed air, AUER Airtester HP, AUER/MSA Airtester MP, observe included

instruction for use. 3. Measuring Range 100 mg/ m3 ... 1000 mg/ m3 water vapor for a 3 l sample.

4. Chemical Reaction and Color Change Precipitation of selenium from selenium/sulfuric acid by water.


→ brown resp. brown/green.

5. Influence of Temperature Detector tubes can be used between 0 °C and 35 °C (32 °F and 95 °F).

The calibration scales on detector tube are exactly valid if tubes habe a temperature of 20 °C (68 °F) during measurement. If detector dube temperature deviates from 20 °C (68 °F), multiply reading (mg/ m3) with appropriate correction factor (see table)

Temperature of detector tube (°C)

0 5 10 15 20 25 30 35

Temperature of detector tube (°F)

32 41 50 59 68 77 86 95

Correction factor 1,85 1,55 1,35 1,17 1,00 0,85 0,70 0,57

Normally, detector tube temperature is equivalent to ambient temperature.

6. Interferences and Cross Sensitivities No interference from: – hydrogen, methane, ethane, propane, carbon monoxide, carbon dioxide, mineralic oil (vapor

and mist).




Detector Tube Nitr.-HP

1. Application Detection of nitrous fumes (nitric oxide + nitrogen dioxide, NO + NO2) in compressed air.

2. Sampling Device AUER Airtester HP, AUER/MSA Airtester MP, observe included instructions for use.

3. Measuring Range 0,2...2,5 ppm nitrous fumes for a 3,0 l sample.

0,5...6,0 ppm nitrous fumes for a 1,5 l sample.

4. Chemical Reaction and Color Change Oxidation of an aromatic amine by nitrogen dioxide. Nitric oxide does not change color of the indicating

layer, it has to be oxidized in the conversion layer to nitrogen dioxide.

Color change: white or light blue

→ dark blue

Influence of Temperature and Humidity 5. Detector tubes can be used without compensation of the reading between 5 °C and 35 °C (40 °F

and 95 °F) and up to 90% rh [36 g/m3 at 35 °C (95 °F)].

6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, propane, carbon monoxide, carbon dioxide.

– nitrous oxide up to 0.2 vol %. – higher saturated hydrocarbons (e.g. butanes, octanes), aromatic hydrocarbons (e.g. benzene), sulfur dioxide up to 200 ppm. – hydrogen chloride, hydrogen cyanide, phogene up to 20 ppm.

b) olefinic hydrocarbons (e.g. ethylene), hydorgen sulfide, ammonia are not indicated, but possibly will shorten the indication stain of nitrous fumes.

c) halogens (chlorine, bromine), chlorine dioxide, ozone will be indicated. The sensitivity of indication is different.




Detector Tube Natural gas

1. Application Qualitative detection of methane ( CH4) in natural gas or air/natural gas - mixtures.




3. Measuring Range More than 0,5 Vol% methane at n=5 (5 strokes). Attention: The stain lenghth is not equivalent to

concentration of methane.

4. Chemical Reaction and Color Change Oxidation of methane with potassiumpermanganate and fuming sulfuric acid to carbonmonoxide.

Reaction of carbonmonoxide with potassiumiodate in fuming sulfuric acid.

Color change:

white

→ green/brown.

5. Ambient Conditions During Sampling Detector tubes can be used between 0°C and 40°C (32°F and 95°F).

6. Interferences and Cross Sensitivities a) ethane, propane and carbonmonoxide will be indicated

b) no interference from other hydrocarbons



Information Data SheetDetector Tube Methyl Bromide-2

1. Application Detection of methyl bromide (bromo methane) in air or in technical gases.




3. Measuring Range 10 ppm … 100 ppm methyl bromide at n = 1 (1 stroke).

2 ppm … 10 ppm methyl bromide at n = 6 (6 strokes). 4. Chemical Reaction and Color Change Oxidative decomposition of methyl bromide in the pre tube by a chromate/sulfuric acid reagent;

forming bromine. Oxidation of an aromatic amine by chlorine in the indicating tube. Color change: white → yellow

5. Ambient Conditions During Sampling Detector tubes can be used between 0°C and 50°C (32°F and 120°F). Up to 100 % rh water vapor

will not affect accuracy of indication.

6. Interferences and Cross Sensitivities a) No interference from: Hydrogen, methane, ethane, carbon monoxide, carbon dioxide.

b) Easily oxidable halogenated hydrocarbons, halogenes, hydrogen chloride, nitrogen dioxide will be indicated. Sensitivity of indication varies.

c) In presence of oxidizable gases and vapors (e.g. hydrocarbons) layer of the pre tube will be consumed. Methyl bromide indication then may be lower than actually present. High concentrations of oxidizable accompanying substances discolor the layer of pre tube brown → greenish.




Detector Tube CO2-0,5%

1. Application Detection of carbon dioxide (CO2) in air or in technical gases.




3. Measuring Range 0.5 vol.% … 10 vol.% at n=1 (1 stroke).

The calibration of the tube refers to 37 °C (100 °F) and 95 % rh.

4. Chemical Reaction and Color Change Reaction of carbon dioxide with an aliphatic amine. Change of pH-value causes color change of an

acid-base-indicator.

Color change: white / light blue

→ blue.

5. Ambient Conditions During Sampling Detector tubes can be used between 0 °C and 50 °C (32 °F and 120 °F).


– higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene), aromatic hydrocarbons (e.g. benzene) up to 1 vol.%. – sulfur dioxide, hydrogen sulfide, nitrogen dioxide, hydrogen chloride and other acetic gases up to 0.5 vol.%. – Ammonia up to 0.5 vol.%.




Detector Tube Phenol-1

1. Application Detection of phenol in air or in technical gases.




3. Measuring Range 1 ppm ... 15 ppm phenol at n = 20 (20 pump strokes).

5 ppm ... 25 ppm phenol at n = 10 (10 pump strokes).

4. Chemical Reaction and Color Change Reaction of phenol with cersulfate and sulfuric acid.

Color change: light yellow

→ grey/brown.

5. Ambient Conditions During Sampling • Detector tubes can be used between 0 °C and 40 °C [32 °F and 104° F] and between 1 and 18 g

H2O/m3. Between 0 °C and 10 °C: multiply the reading by 1.3, between 30 °C and 40 °C: multiply the reading by 0.8.

6. Interferences and Cross Sensitivities a) Cresols react with nearly the same sensitivity as phenol.

b) No interferences from: benzene, toluene and other aromatic hydrocarbons without heteroatoms.

c) No interferences from: aliphatic hydrocarbons and alcohols.




Detector Tube MEK-50

1. Application Detection of ethyl methyl ketone (2-Butanone C4H8O) in air or in technical gases.




3. Measuring Range 50 ppm ... 4000 ppm ethyl methyl ketone at n=3 (3 strokes).

4. Chemical Reaction and Color Change Reaction of ethyl methyl ketone with 2,4 -dinitrophenylhydrazine forming an hydrazone.


→ yellow

5. Ambient Conditions During Sampling • Detector tubes can be used without compensation of the reading between 0 °C and 40 °C (32 °F

and 95 °F) and up to and 90% rh [36 g/m3 at 40 °C (95 °F)].

6. Interferences and Cross Sensitivities a) No interference from: alcohols and esters.

b) Aldehydes and other ketones will be indicated. The sensitivity of indication is different. Ammonia interferes with the reading by a yellow-brown discoloration of the indicating layer.




Detector Tube C6H6-1

1. Application Detection of benzene (C6H6) in air or in technical gases.




3. Measuring Range 1 ppm ... 25 ppm benzene at n=15 (15 pump strokes).

5 ppm ... 100 ppm benzene at n=4 (4 pump strokes).

4. Chemical Reaction and Color Change Oxidation of benzene by an iodate/ sulfuric acid reagent.

Color change: white

→ brown.


and 104 °F) and up to 90 % rh (46 g/m3 at 40 °C [104 °F]). Do not use detector tube if protective layer has totally changed from dry to wet by water vapor.

6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, carbon dioxide.

– propane up to 2 vol.%.

b) Higher aromatic hydrocarbons (e.g. toluene, xylenes) will be indicated by a brown discoloration.

c) Higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene), carbonmonoxide, hydrogen sulfide are indicated by a slight brown discoloration.




Detector Tube Ethylene-50

1. Application Detection of ethylene (C2H4) in air or technical gases.




3. Measuring Range 50 ppm ... 1,000 ppm ethylene at n=5 (5 pump strokes).

4. Chemical Reaction and Color Change Oxidation of ethylene by a chromate/sulfuric acid reagent.

Color change: orange

→ green/brown

5. Ambient Conditions During Sampling Detector tubes can be used without compensation of the reading between 0 °C and 40 °C (32 °F


6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, carbon monoxide, carbon dioxide.

– sulfur dioxide, nitrogen dioxide up to 1000 ppm.

b) Propane, butanes, acetylene discolor the whole indicating layer, a sharp stain edge is not formed.

c) Higher saturated hydrocarbons (e.g. hexanes, octanes), aromatic hydrocarbons (e.g. benzene), hydrogen sulfide are indicated. The sensitivity of indication is different.




Detector Tube Hexane-20

1. Application Detection of n-hexane (C6H14) in air or technical gases.




3. Measuring Range 20 ppm ... 1000 ppm n-hexane at n=5 (5 pump strokes).

4. Chemical Reaction and Color Change Oxidation of hexane by a chromate/sulfuric acid reagent.


→ green/brown



6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, carbon monoxide, corbone dioxide.

– sulfur dioxide, hydrogen sulfide, nitrogen dioxide aromatic hydrocarbons (e.g benzene) up to 1000 ppm.

b) Propane, butanes, acetylene discolor the indicating layer totally so that stain end is not formed.

c) Olefinic hydrocarbons (e.g. ethylene) will be indicated. The sensitivity of indication is lower than for hexane.




Detector Tube Propane-200

1. Application Detection of propane (C3H8) in air or technical gases.




3. Measuring Range 200 ppm ... 4,000 ppm propane at n=5 (5 pump strokes).

4. Chemical Reaction and Color Change Oxidation of propane by a chromate/sulfuric acid reagent.


→ green/brown-black



6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, carbon monoxide, corbone dioxide.

– sulfur dioxide up to 5000 ppm. – nitrogen dioxide up to 1000 ppm. – hydrogen sulfide, aromatic hydrocarbons (e.g. benzene)up to 200 ppm.

b) Pentanes and higher saturated hydrocarbons, olefinic hydrocarbons (e.g. ethylene), acetylene, carbon disulfide are indicated. The sensitivity of indication is lower than for propane.




Detector Tube HF-1

1. Application Detection of hydrogen fluoride (hydrofluoric acid gas, HF) in air or technical gases.




3. Measuring Range 5 ppm ... 50 ppm hydrogen fluoride at 2 pumpstrokes (n=2).

1 ppm ... 12 ppm hydrogen fluoride at 8 pumpstrokes (n=8).

Any number of strokes from n=2 to 8 can be chosen. For calculation use n=8 scale, relate as follows: 8 x indication on n=8 scale

ppm HF =

no. of strokes chosen

4. Chemical Reaction and Color Change Change of pH-value causes color change of an acid-base-indicator. Color change: light blue → yellow.


and 95 °F) and between 20 % rh (1.4 g/m3 at 5 °C [41 °F]) and 80 % rh (32 g/m3 at 35 °C [95 °F]).

6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, propane, butanes, carbon monoxide, carbon dioxide.

– higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene), aromatic hydrocarbons (e. g. benzene) up to 5000 ppm (n=8). – hydrogen sulfide up to 300 ppm (n=8). – sulfur dioxide up to 5 ppm (n=8).

b) Nitrogen dioxide will be indicated. To distinguish between hydrogen flouride and nitrogen dioxide use detector tube NO2-0,5 (part no.: 487341) which detects only nitrogen dioxide.

c) Hydrogen chloride will be indicated. To distinguish between hydrogen flouride and hydrogen chloride use detector tube HCl-1 (part no.: 803948) which detects - within the concentration range up to 30 ppm (n=5) - only hydrogen chloride.




Detector Tube Acetone-100

1. Application Detection of acetone (propanone, C3H6O)in air or in technical gases.




3. Measuring Range 100 ... 10,000 ppm acetone at n=6 (6 strokes).

4. Chemical Reaction and Color Change Reaction of acetone with 2.4-dinitrophenylhydrazine forming an hydrazone.


→ yellow



6. Interferences and Cross Sensitivities a) No interference from: – alcohols and esters.

b) Aldehydes and other ketones will be indicated. The sensitivity of indication is different. Ammonia interferes with the reading by a yellow-brown discoloration of the indication layer.




Detector Tube Ozone-0,05

1. Application Detection of ozone (O3) in air or in technical gases.




3. Measuring Range (0,5 ... 5) ppm ozone at n=2 (2 strokes).

(0,05 ... 1) ppm ozone at n=10 (10 strokes).

4. Chemical Reaction and Color Change Oxidation of indigotine to isatine by ozone.

Color change: light blue

→ white.

5. Ambient Conditions During Sampling • Detector tubes can be used between 0° C and 40° C (32° F and 104° F) and between

20 % rh (1.0 g/m3 at 0 °C [32° F]) and 80 % rh (41 g/m3 at 40° C [104° F]).

6. Interferences and Cross Sensitivities a) No interference from: – Carbon dioxide, as well in concentrations above 50 vol.%.

– Sulfur dioxide up to 1 ppm (n=10).

b) Nitrogen dioxide and chlorine in concentrations up to 1 ppm (n=10) do not interfere. Higher concentrations discolor indicating layer to diffusive white or light grey.




Detector Tube Styrene-10

1. Application Detection of styrene (vinyl benzene, C6H5C2H3) in air or in technical gases.




3. Measuring Range 10 ppm ... 300 ppm styrene at n=10 (10 strokes)

4. Chemical Reaction and Color Change Reaction of styrene with sulfuric acid.

Color change: white

→ yellow.




– benzene, toluene, higher saturated hydrocarbons (e. g. butanes, octanes), methanol up to 1000 ppm.

b) Unsaturated hydrocarbons (e. g. butadiene) are indicated. The sensitivity of indication is different.




Detector Tube Ethanol-100

1. Application Detection of ethanol (ethyl alcohol, C2H5OH).




3. Measuring Range 100 ppm ... 3,000 ppm triethylamine at n=10 (10 pump strokes).

4. Chemical Reaction and Color Change Oxidation of ethanol by a chromate/sulfuric acid reagent.

Color change: red

→ greyish-green


and 86 °F) and between 10% rh [0.5 g/m3 at 0 °C (32 °F)] and 90% rh [27 g/m3 at 30 °C (86 °F)].

6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, hydrocarbons (methane, ethane, ethylene), carbon monoxide, carbon dioxide.

– halogenated hydrocarbons (e.g. trichloroethane, trichloroethyle, chlorobenzene ), hydrogen sulfide, carbon disulfide, acetic acid up to 5,000 ppm. – aldehydes, ketones, ethers, esters up to 1,000 ppm.




Detector Tube Triethylamine-5

1. Application Detection of triethylamine (N(C2H5)3).




3. Measuring Range 5 ppm ... 30 ppm triethylamine at n=1 (1 pump stroke).


Color change: pink resp. yellow → green resp. blue.

5. Ambient Conditions During Sampling Detector tubes can be used between 10 °C and 30 °C (50 °F and 86 °F) and in the humidity range

between 5 g/m3 (50 % rh at 10 °C [50 °F], 30 % rh at 20 °C [68 °F], 15 % rh at 30 °C [86 °F] and 12 g/m3 (70 % rh at 20 °C [68 °F], 40 % rh at 30 °C [86 °F]).

6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, propane, carbon monoxide.

– carbon dioxide up to 1 vol %. – nitrogen dioxide, hydrogen sulfide up to 50 ppm.

b) Ammonia and other alkaline gases and vapors (e.g. hydrazine) will be indicated. The sensitivity of indication is different.

c) Strong acid gases (e.g. sulfur dioxide, hydrogen chloride) are not indicated but will decrease stain length of triethylamine indication even when concentrations correspond to measuring range of detector tube.




Detector Tube Ethyl Mercaptan -0,5

1. Application Detection of ethyl mercaptan (ethanethiol, C2H5SH) in air or in technical gases.




3. Measuring Range 10 ppm ... 100 ppm ethyl mercaptan at n = 1 (1 pump strokes).

0,5 ppm ... 5 ppm ethyl mercaptan at n = 15 (15 pump strokes).

4. Chemical Reaction and Color Change Reaction of ethyl mercaptan with palladium salt.

Color change: white

→ yellow

5. Ambient Conditions During Sampling Detector tubes can be used between 5 °C and 40 °C (41 °F and 104 °F) and between 10 % rh

(0,7 g/m3 at 5 °C [41 °F]) and 90 % rh (46 g/m3 at 40 °C [104 °F]).

6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, propane, carbon dioxide.

– higher saturated hydrocarbons (e. g. butanes, hexanes), olefinic hydrocarbons (e. g. ethylene), aromatic hydrocarbons (e. g. benzene), carbon monoxide, thioethers (e. g. dimethyl sulfide, tetrahydrothiophene), carbon disulfide up to 1000 ppm (n=15). – hydrogen sulfide up to 80 ppm (n=15). Hydrogen sulfide discolors the protective layer from white to brown. Do not use detector tube if protective layer has totally changed color.




Detector Tube CO2-100

1. Application Detection of carbon dioxide (CO2) in air or technical gases.




3. Measuring Range 100 ppm ... 3000 ppm carbon dioxide at n=10 (10 strokes).

4. Chemical Reaction and Color Change Reaction of carbon dioxide with hydrazine. Change of pH-value causes color change of an acid-

baseindicator.

Color change: white

→ blue



6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, propane, butanes, carbon dioxide.

– higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene), aromatic hydrocarbons (e.g. benzene) up to 1 % vol. – sulfur dioxide, hydrogen sulfide, nitrogen dioxide, hydrogen chloride and other acidic gases up to 100 ppm. – ammonia up to 100 ppm




Detector Tube Formalehyde-0.1

1. Application Detection of formaldehyde (CH2O) in air or in technical gases.




3. Measuring Range 1 ppm ... 10 ppm formaldehyde at n=10 (10 strokes).

0.1 ppm ... 1 ppm formaldehyde at n=20 (20 strokes).

4. Chemical Reaction and Color Change Reaction of formaldehyde with hydroxylamin phosphate. Change of pH-value causes color change

of an acid-base-indicator.


→ red.


and 86 °F) and up to 70 % rh (4 - 21 g/m3 at 30 °C [86 °F]).

6. Interferences and Cross Sensitivities Other aldehydes (e.g. propionaldehyde), ketones (e.g. acetone), acidic gases (e.g. sulfur

dioxide, nitrogen dioxide, hydrogen chloride) are also indicated. The sensitivity of indication is different.




Detector Tube ClO2-0.05

1. Application Detection of chlorine dioxide (ClO2) in air or in technical gases.




3. Measuring Range 0.25 ppm ... 15 ppm chlorine dioxide at n=1 (1 stroke).

0.05 ppm ... 1.5 ppm chlorine dioxide at n=5 (5 strokes).

4. Chemical Reaction and Color Change Oxidation of an aromatic amine by chlorine dioxide.

Color change: white

→ brown


and 86 °F) and up to 80 % rh (24 g/m3 at 30 °C [86 °F]).

6. Interferences and Cross Sensitivities a) No interference from: – carbon dioxide.

b) bromine, nitrogen dioxide will be indicated. Sensitivity of indication is different.

c) hydrogen sulfide, ammonia, ethylene are not indicated but will increase the stain length of chlorine dioxide indication.






Detector Tube Aromatic Hydrocarbons

1. Application Detection of aromatic hydrocarbons.




3. Measuring Range 5 ppm ... 300 ppm benzene (C6H6) at n=10 (10 pump strokes).

4. Chemical Reaction and Color Change Oxidation of aromatic hydrocarbons by a iodate/ sulfuric acid reagent.

Color change: white

→ brown.

5. Ambient Conditions During Sampling Detector tubes can be used between 5 °C and 40 °C (41 °F and 104 °F) and up to 80 % rh (40 g/m3 at 40 °C [104 °F]).

6. Interferences and Cross Sensitivities

a ) No interference from:

– hydrogen, methane, ethane, carbon dioxide. – propane up to 2 vol%.

b) higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene), carbon monoxide, hydrogen sulfide will be indicated by a slight brown discoloration.


Detector Tube Gasoline-30

1. Application Detection of gasoline vapor in air.




3. Measuring Range 300 … 6000 ppm gasoline at n=1 (1 stroke).

30 ... 600 ppm gasoline at n=10 (10 strokes). The calibration of tube refers to a special mixture of hydrocarbons with a mean molar wight of 94,5 g/mol. 1 ppm = 4 mg/m3, 1 mg/m3 = 0,25 ppm (20 °C/68 °F, 1013 mbar).

4. Chemical Reaction and Color Change Oxidation of gasoline by iodine pentoxide in fuming sulfuric acid. Color change: white → brown/green.


and 86 °F) and up to 90 % rh (27 g/m3 at 30 °C [86 °F]).

6. Interferences and Cross Sensitivities a) No interference from: – methane, carbon dioxide.

– hydrogen, ethane up to 10 vol.% (n=1) or 1 vol.% (n=10); higher concentrations discolor the whole indication layer, a sharp stain edge is not formed. – sulfur dioxide, nitrogen dioxide up to 1 vol.% (n=1) or 1000 ppm (n=10).

b) Carbon monoxide, hydrogen sulfide, carbon disulfide and many other oxidizable gases and vapors will give an indication. The sensitivity varies.

c) Saturated hydrocarbons are indicated. Referring to calibration of detector tube the sensitivity of indication will be higher for: propane, butanes, pentanes. The sensitivity will be lower for: octanes and their higher homologues. Olefinic hydrocarbons (e.g. ethylene), aromatic hydrocarbons (e.g. benzene), acetylene are indicated with lower sensitivity.






Detector Tube H2O-HP (ppm)

1. Application Detection of water vapor (H2O) in compressed air.

2. Detector Tube Sampling Pump Monitoring set for compressed air, AUER Airtester HP, observe included instruction for use.

3. Measuring Range 30 ppm ... 200 ppm water vapor for a 5 l sample.

10 ppm ... 80 ppm water vapor for a 10 l sample.

4. Chemical Reaction and Color Change Precipitation of selenium from selenium/sulfuric acid by water.


→ brown resp. brown/green.

5. Influence of Temperature Detector tubes can be used between 0 °C and 35 °C (32 °F and 95 °F).

The calibration scales on detector tube are exactly valid if tubes habe a temperature of 20 °C (68 °F) during measurement. If detector dube temperature deviates from 20 °C (68 °F), multiply eading (ppm) with appropriate correction factor (see table). r Temperature of detector tube (°C)

0 5 10 15 20 25 30 35


32 41 50 59 68 77 86 95

Correction factor 1,85 1,55 1,35 1,17 1,00 0,85 0,70 0,57 Normally, detector tube temperature is equivalent to ambient temperature.

6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, propane, carbon monoxide, carbon dioxide, mineralic oil (vapor

and mist).




Detector Tube Oil-HP

1. Application Detection of mineralic oil especially of compressor oil contents (vapor and mist) in compressed air.

2. Sampling Device Monitoring set for compressed air, MSA AUER Airtester HP, Airtester MP, observe included

instruction for use.

3. Measuring Range The detector tube has two marks conforming the following compressor oil contents:

Mark “a”: approx. 0.5 mg/m for a 25approx. 0.3 mg/m3 for a 60 l sample

3 l sample

Mark “b”: approx. 1.0 mg/m for a 25approx. 0.5 mg/m

3 l sample 3 for a 60 l sample

4. Chemical Reaction and Color Change O xidation of compressor oil by a chromate/sulfuric acid reagent.


→ light green resp. light brownish green.

5. Ambient Conditions During Sampling Detector tubes can be used between 10 C and 40 °C (50 °F and 104 °F). °

Water vapor contents of at least 0.5 g/m3 ( 1% rh at 40 °C [104 °F] resp. 5 % rh at 10 °C [50 °F] ) will be absorbed by the protective layer. Higher concentrations of water vapor will discolor the indicating layer from yellow to red. Perfformance of detector tube is not affected by that discoloration.



- hydrogen, methane, ethane, propane, carbon dioxide, carbon monoxide.

b) Vapors of many organic substances, especially hydrocarbons, will be indicated. The sensitivity of indication is different.




Detector Tube H20-HP(mg/m3)

1. Application Detection of water vapor H2O) in compressed air.

2. Sampling Device Monitoring set for compressed air, AUER Airtester HP, observe included instruction for use.

3. Measuring Range 20 mg/ m ... 160 mg/ m water vapor for a 5 l sample

5 mg/ m3 3 .

3 ... 70 mg/ m3 water vapor for a 10 l sample.

4. Chemical Reaction and Color Change Precipitation of selenium from selenium/sulfuric acid by water. Color change: yellow → brown resp. brown/green.

5. Influence of Temperature • Detector tubes can be used between 0 °C and 35 °C (32 °F and 95 °F).

The calibration scales on detector tube are exactly valid if tubes habe a temperature of 20 °C (68 °F) during measurement. If detector dube temperature deviates from 20 °C (68 °F), multiply reading (mg/ m3) with appropriate correction factor (see table).


0 5 10 15 20 25 30 35


32 41 50 59 68 77 86 95

Correction factor 1,85 1,55 1,35 1,17 1,00 0,85 0,70 0,57 Normally, detector tube temperature is equivalent to ambient temperature.



– hydrogen, methane, ethane, propane, carbon monoxide, carbon dioxide, mineralic oil (vapor and mist).


Detector Tube CO-HP

1. Application Detection of carbon monoxide (CO) in compressed air.

2. Sampling Device Monitoring set for compressed air, AUER Airtester HP, observe included instruction for use.

3. Measuring Range (5 ... 70) ppm carbon monoxide for a 1,5 l sample.

4. Chemical Reaction and Color Change Oxidation of carbon monoxide by iodine pentoxide in fuming sulfuric acid, forming carbon dioxide

and iodine.

Color change: white

→ brown / green.

Influence of Temperature 5. Detector tubes can be used between 0 °C and 40 °C (32 °F and 104 °F) and up to 90 % rh (46 g/m3 at 40 °C [104 °F])

6. Interferences and Cross Sensitivities a) No interference from: h ydrogen, methane, carbon dioxide, mineralic oil (vapor and mist).




Detector Tube HCl-1

1. Application Detection of hydrogen chloride (hydrochloric acid gas, HCl) in air or technical gases.




3. Measuring Range 5 ppm ... 50 ppm hydrogen chloride at 2 pumpstrokes (n=2).

1 ppm ... 10 ppm hydrogen chloride at 10 pumpstrokes (n=10).

4. Chemical Reaction and Color Change C hange of pH-value causes color change of an acid-base-indicator. Color change: blue → yellow


and 95 °F) and between 20 % rh (19 g/m3 at 10 °C [50 °F]) and 80 % rh (32 g/m3 at 35 °C [95 °F]).

6. Interferences and Cross Sensitivities a) No interference from: - hydrogen, methane, ethane, propane, butanes, carbon monoxide, carbon dioxide.

- higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene), aromatic hydrocarbons (e.g. benzene) up to 5000 ppm (n=10). - nitrogen dioxide, sulfur dioxide, hydrogen sulfide up to 125 ppm (n=2) resp. 25 ppm (n=10).

b) Chlorine will be indicated. To distinguish between hydrogen chloride and chlorine use detector tube Cl2-0,2 (part no. 803944) which detects only chlorine.






Detector Tube NH3-2

1. Application Detection of ammonia (NH3) in air or in technical gases.




3. Measuring Range (100 ... 600) ppm ammonia at n=2 (2 stroke)

(2 ... 80) ppm ammonia at n=10 (10 strokes).


Color change: yellow → blue



6. Interferences and Cross Sensitivities a) No interference from: – carbon dioxide up to 2 vol % (n=2) or 0.5 vol.% (n=10).

– higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene), aromatic hydrocarbons (e.g. benzene) up to 1 vol % (n=10). – hydrogen sulfide, nitrogen dioxide up to 500 ppm (n=2) or 100 ppm (n=10).

b) Other alkaline gases (amins, hydrazine) will be indicated. The sensitivity of indication is different.

c) Strong acidic gases (e.g. sulfur dioxide, hydrogen chloride, chlorine, phosgene are not indicated but will shorten stain length of ammonia even when concentrations correspond to measuring range of detector tube.


Detector Tube Nitr-2

1. Application Detection of nitrous fumes (nitric oxide + nitrogen dioxide, NO + NO2)in air or in technical gases.




3. Measuring Range 5 ... 140 ppm nitrous fumes at n=5 (5 strokes).

2 ... 70 ppm nitrous fumes at n=10 (10 strokes).

4. Chemical Reaction and Color Change Oxidation of an aromatic amine by nitrogen dioxide. Nitric oxide does not change color of the

dicating layer, it has to be oxidized in the conversion layer to nitrogen dioxide. in Color change: yellowish → brown or blue/brown



6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, propane, carbon monoxide, carbon dioxide, nitrous oxide

b) Halogens (chlorine, bromine), chlorine dioxide, ozone will be indicated. The sensitivity of indication is different.

c) Hydrocarbons (e.g. butanes, ethylene, acetylene), hydrogen sulfide, ammonia are not indicated, but possibly will shorten the indication stain of nitrous fumes.




Detector Tube Hg-0.01

1. Application Detection of mercury (Hg) vapor in air or in technical gases.




3. Measuring Range 0.012 ppm … 0.096 ppm mercury at n=20 (20 strokes); equivalent to:

0.1 mg/m3 ... 0.8 mg/m3 mercury at n=20 (20 strokes).

Any number of strokes from 5 to 20 can be chosen. For calculation use n=20 scale, relate at follows:

20 x indication on n=20 scale ppm Hg =


4. Chemical Reaction and Color Change Reaction of mercury with copper iodide forming a complex copper-mercury iodide compound. Color change: greyish white → light reddish yellow.

5. Ambient Conditions During Sampling Detector tubes can be used without compensation of the reading between 10°C and 40°C (50°F and

104°F) and between 10% rh (0.9 g/m3 at 10°C [50°F]) and 80% rh (41 g/m3 at 40°C [104°F]). Do not use detector tube if protective layer has totally changed from dry to wet by water vapor.


– higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene), aromatic hydrocarbons (e. g. benzene), alcohols, ketones, ethers, esters up to 1000 ppm. – hydrogen sulfide, ammonia up to 100 ppm – sulfur dioxide, hydrogene chloride, hydrogen cyanide up to 5 ppm.

b) Chlorine, bromine, nitrogene dioxide will shorten stain length of mercury indication even in concentrations lower than 1 ppm.




Detector Tube Tri-5

1. Application Detection of trichloroethylene (C2HCl3) in air or in technical gases.




3. Measuring Range 20 ppm ... 250 ppm trichloroethylene at n = 1 (1 pump stroke).

5 ppm ... 60 ppm trichloroethylene at n = 3 (3 pump strokes).

4. Chemical Reaction and Color Change Oxidative decomposition of halogenated hydrocarbons in the conversation layer by a

chromate/sulfuric acid reagent, forming chlorine or bromine. Oxidation of an aromatic amine by chlorine resp. bromine in the indicating layer.

Color change: white → orange




– propane, butanes, chloromethane, dichloromethane, carbon tetrachloride, bromomethane, fluorinated methanes, fluorinated ethanes up to 1 vol% (n = 1) or 3000 ppm (n = 3).

b) Easily oxidizable halogenated hydrocarbons (e.g. vinyl chloride, dichloroethylenes, perchloroethylene), halogens (chlorine, bromine), hydrogen chloride, phosgene, nitric oxide, nitrogen dioxide will be indicated. The sensitivity of indication varies.

c) In the presence of oxidizable gases and vapors (e.g. hydrocarbons, hydrogen sulfide) part of the conversion layer will be consumed. Trichloroethylene indication may be lower than actually present. High concentrations of oxidizable accompanying substances discolor conversion layer from brown to greenish. Do not use detector tube in this case.






Detector Tube CO2-1%





3. Measuring Range 1 vol.% ... 20 vol.% carbon dioxide at n=1 (1 stroke)

4. Chemical Reaction and Color Change Reaction of carbon dioxide with hydrazine. Change of pH-value indicated by color change of acid-

baseindicator. Color change: white → violet

5. Ambient Conditions During Sampling Detector tubes can be used without compensation of the reading between -20 °C and 50 °C (0 °F

and 120 °F) and between 10 % rh (0.1 g/m3 at -20 °C [0 °F]) and 90 % rh (75 g/m3 at 50 °C [120 °F]).



– hydrogen, methane, ethane, propane, butanes, carbon monoxide. – higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene), aromatic hydrocarbons (e. g. benzene) up to 1 vol.% . – Sulfur dioxide, hydrogen sulfide, nitrogen dioxide, hydrogen chloride and other acidic gases up to 1 vol.%. – ammonia up to 1 vol.%.


Detector Tube Per-10

1. Application Detection of perchloroethylene (tetrachloroethylene, C2Cl4) in air or in technical gases.




3. Measuring Range 10 ppm …500 ppm perchloroethylene at n=5 (5 strokes).

4. Chemical Reaction and Color Change O xidation of perchloroethylene by iodine pentoxide in fuming sulfuric acid. Color change: white → green resp. brown/green.


and 104 °F) and up to 90 % rh (46 g/m3 at 40 °C [104 °F]). Water vapor will be absorbed by the protective layer changing its color from light green to green. Do not use detector tube if protective layer has totally changed color.

6. Interferences and Cross Sensitivities a) No interference from: – methane, carbon dioxide.

– hydrogen, ethane, carbon tetrachloride, fluorinated methanes, fluorinated ethanes up to 1 vol. %.

b) Higher saturated hydrocarbons( e.g. propane, hexanes), olefinic hydrocarbons (e.g. ethylene), acetylene, easily oxidizable halogenated hydrocarbons (e.g. chloroform, trichloroethylene), carbon monoxide, hydrogen sulfide, carbon disulfide and many other oxidizable gases and vapors will be indicated. The sensitivity of indication varies.

c) Free halogens (chlorine, bromine) will only be indicated in concentrations in which they themselves are very hazardous.




Detector Tube VC-1

1. Application Detection of vinyl chloride (C2H3Cl) in air or in technical gases.




3. Measuring Range (5 ... 70) ppm vinyl chloride at 2 pump strokes (n = 2).

(1 ... 15) ppm vinyl chloride at 10 pump strokes (n = 10).

4. Chemical Reaction and Color Change Oxidative decomposition of halogenated hydrocarbons in the conversation layer by a chromate

sulfuric acid reagent, forming chlorine or bromine. Oxidation of an aromatic amine by chlorine resp. bromine in the indicating layer.





– propane, butanes, chloromethane, dichloromethane, carbon tetrachloride, bromomethane,fluorinated methanes, fluorinated ethanes up to 5000 ppm (n = 2) or 1000 ppm (n = 10).

b) Easily oxidizable halogenated hydrocarbons (e.g. trichloroethylene, dichloroethylenes, perchloroethy lene), halogens (chlorine, bromine), hydrogen chloride, phosgene, nitric oxide, nitrogen dioxide will be indicated. The sensitivity of indication varies.

c) In the presence of oxidizable gases and vapors (e.g. hydrocarbons, hydrogen sulfide) part of the conversion layer will be consumed. Trichloroethylene indication may be lower than actually present. High concentrations of oxidizable accompanying substances discolor conversion layer from brown to greenish. Do not use detector tube in this case.




Detector Tube CO-5

1. Application Detection of carbon monoxide (CO) in air or in technical gases.




3. Measuring Range 50 ppm … 1,000 ppm carbon monoxide at n = 1 (1 stroke)

5 ppm ... 100 ppm carbon monoxide at n = 10 (10 strokes). Any number of strokes from 1 to 10 can be chosen. For calculation use n=10 scale, relate as follows:

10 x indication on n=10 scale ppm CO =


4. Chemical Reaction and Color Change Oxidation of carbon monoxide by iodine pentoxide in fuming sulfuric acid. Color change: white → light brown / light green.


6. Interferences and Cross Sensitivities a) No interference from: – Ethane up to 10 vol.% (n = 1) or 1 vol.% (n = 10); higher concentrations discolor the whole

indicating layer, a sharp stain edge is not formed. – sulfur dioxide, nitrogen oxide, nitrogen dioxide up to 1 vol.% (n = 1) or 1,000 ppm (n=10).

b) Propane and higher saturated hydrocarbons, olefinic hydrocarbons, hydrogen sulfide discolor the protective layer from brown to greenish. At least 1,000 ppm (n = 1) or 100 ppm (n =10) of propane, olefinic hydrocarbons (e.g. ethylene) and hydrogen sulfide are retained. Retention is lower for butanes and higher saturated hydrocarbons (e.g. hexanes). Concentrations of hydrocarbons exceeding the protective capacity may be eliminated by adding a charcoal filter tube Ads (804403).



c) Acetylene is indicated: 1,000 ppm is indicated as approx. 400 ppm CO (n = 1).

d) Water vapor reduces the protective layer retention capacity, in particular for hydrocarbons.


Detector Tube CO-0,5 %





3. Measuring Range 0.3 vol.% … 7 vol.% carbon monoxide at n=1 (1 stroke).

4. Chemical Reaction and Color Change Oxidation of carbon monoxide by iodine pentoxide in fuming sulfuric acid. Color change: white/yellowish → brown


6. Interferences and Cross Sensitivities a) No interference from: – Hydrogen, methane, ethane, carbon dioxide, as well in concentrations above 50 vol.%.

– sulfur dioxide, nitrogen dioxide, propane up to 10 vol.%. – higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene) up to 1000 ppm.

b) Interfering concentrations of hydrocarbons may be eliminated by adding a charcoal filter tube Ads (804403).




Detector Tube CS2-2

1. Application Detection of carbon disulfide (CS2) in air or in technical gases.




3. Measuring Range 10 ppm … 300 ppm at n=1 (1 stroke).

2 ppm ... 50 ppm at n=5 (5 strokes).

4. Chemical Reaction and Color Change O xidation of carbon disulfide by iodine pentoxide in fuming sulfuric acid. Color change: white → brown/green

5. Ambient Conditions During Sampling Detector tubes can be used without compensation of reading between 0°C and 40°C (32°F and

104°F) and up to 90 % rh (46 g/m3 at 40 °C [104 °F]).

6. Interferences and Cross Sensitivities a) No interference from: methane, carbon dioxide.

– hydogen, ethane, carbon tetrachloride, fluorinated methanes, fluorinated ethanes up to 5 vol. % (n=1) or 1 vol. % (n=5). – sulfur dioxide, nitrogen dioxide, chloromethane, dichloromethane, 1.2-dichloromethane up to 5000 ppm (n=1) or 1000 ppm (n=5).

b) Higher saturated hydrocarbons (e.g. propanes, hexanes), olefinic hydrocarbons (e.g. ethylene), acetylene, aromatic hydrocarbons (e.g. benzene), carbonyl sulfide, hydrogen sulfide, carbon monoxide, easily oxidizable halogenated hydrocarbons (e.g. chloroform, trichloroethylene) and many other oxidizable gases and vapors will be indicated. The sensitivity of indication is different.






Detector Tube PH3-50

1. Application Detection of phosphine (PH3) in air or in technical gases.




3. Measuring Range 50 ppm ... 2000 ppm phosphine at n=1 (1 stroke).

Any number of strokes from 1 to 10 can be chosen. For calculation use n=10 scale, relate as follows:

10 x indication on n=10 scale ppm PH3 =


4. Chemical Reaction and Color Change Reaction of phosphine with silver compound forming metallic silver.

Color change: white → brown


104 °F) and between 10 % rh (0.5 g/ m3 at 0 °C [32 °F]) and 90 % rh (46 g/ m3 at 40 °C [104 °F]).

6. Interferences and Cross Sensitivities a) No interference from: – higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene)

aromatic hydrocarbons (e. g. benzene) up to 1 vol.% (n=10). – sulfur dioxide, carbon disulfide up to 1000 ppm (n=10).

b) Arsine, stibine are indicated with lower sensitivity than phosphine.

c) Hydrogen sulfide will be indicated by a yellow-brown stain, significantly lighter than phosphine stain and only one-half as long.

d) Acetylene will no be indicated. Phosphine in acetylene gives a stain about twice as long as in air.


Detector Tube PH3-0.1

1. Application Detection of phosphine (PH3) in air or in technical gases.




3. Measuring Range 0.1 ppm ... 10 ppm phosphine at n=10 (10 strokes)

Any number of strokes from 1 to 10 can be chosen. For calculation use n=10 scale, relate as follows:

10 x indication on n=10 scale ppm PH3 =


4. Chemical Reaction and Color Change Reaction of phosphine with silver compound forming metallic silver. Color change: white → brown


104 °F) and between 10 % rh (0.5 g/m3 at 0 °C [32 °F]) and 90 % rh (46 g/m3 at 40 °C [104 °F]).


– higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene) aromatic hydrocarbons (e. g. benzene) up to 1 vol.% (n=10). – sulfur dioxide, carbon disulfide up to 1000 ppm (n=10).

b) Arsine, stibine are indicated with lower sensitivity than phosphine.

c) Hydrogen sulfide will be indicated by a yellow-brown stain, significantly lighter than phosphine stain and only one-half as long.

d) Acetylene will no be indicated. Phosphine in acetylene gives a stain about twice as long as in air.






Detector Tube Tol-5

1. Application Detection of toluene (methyl benzene, C6H6CH3).




3. Measuring Range 5 ppm ... 1000 ppm toluene at n=5 (5 pump strokes).

4. Chemical Reaction and Color Change

Oxidation of arColor change:

oma roca ns date/ sulfuric acid reagent. tic hydwhite

rbo→

by a iobrown

5. Ambient Conditions During Sampling Detector tubes can be used between 0 °C and 40 °C (32 °F and 104 °F) and up to 90 % rh (46 g/m3 at 40 °C [104 °F]).



– hydrogen, methane, ethane, propane, butanes, carbon dioxide, carbon monoxide.

b) Benzene will be indicated. The sensitivity of indication is higher than for toluene.

c) higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene), hydrogen sulfide, carbon disulfide will be indicated by a slight brown or pink discoloration. The toluene indication is distinctly readable against that background.


Detector Tube H2S-100

1. Application Detection of hydrogen sulfide (H2S) in air or in technical gases.




3. Measuring Range 100 ppm ... 4000 ppm hydrogen sulfide at n=1 (1 stroke)

Any number of strokes from 1 to 10 can be chosen. For calculation use n=10 scale, relate as follows: ppm H2S= indication on n=1 scale


4. Chemical Reaction and Color Change Reaction of hydrogen sulfide with lead compound forming lead sulfide. Color change: white → brown




– higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene) aromatic hydrocarbons (e. g. benzene) up to 1 vol.% (n=10). – sulfur dioxide, carbon disulfide up to 1000 ppm (n=10).

b) Phosphine, arsine will be indicated. The sensitivity of indication is different.

c) Acetylene is not indicated. Hydrogen sulfide in actetylene will be indicated with a stain double as long as in air.




Detector Tube H2S-1

1. Application Detection of hydrogen sulfide (H2S) in air or in technical gases.




3. Measuring Range 10 ppm ... 200 ppm hydrogen sulfide at n=1 (1 stroke)

1 ppm ... 20 ppm hydrogen sulfide at n=10 (10 stroke) Any number of strokes from 1 to 10 can be chosen. For calculation use n=10 scale, relate as follows: ppm H 2S = 10 x indication on n=10 scale


4. Chemical Reaction and Color Change R eaction of hydrogen sulfide with lead compound forming lead sulfide. Color change: white → brown




– higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene) aromatic hydrocarbons (e. g. benzene) up to 1 vol.% (n=10). – sulfur dioxide, carbon disulfide up to 1000 ppm (n=10). – phosphine up to 3000 ppm (n=10). – Acetylene up to 1 vol.% (n=10).



Information Data Sheet Detector Tube HCN-2

1. Application Detection of hydrogen cyanide (hydrocyanic acid gas, HCN) in air or in technical gases.




3. Measuring Range 5 ppm ... 50 ppm hydrogen cyanide at n=2 (2 strokes)

2 ppm ... 12 ppm hydrogen cyanide at n=10 (10 strokes) Any number of strokes from 3 to 10 can be chosen. For calculation use n=10 scale, relate as follows: ppm HCN = 10 x indication on n=10 scale


4. Chemical Reaction and Color Change Reaction of hydrogen cyanide with mercury-(2)-chloride by which hydrogen chloride is formed.

Change of pH-value causes color change of an acid-base-indicator. Color change: blue → Yellow

5. Ambient Conditions During Sampling Detector tubes can be used without compensation of the reading between 0 °C and 40 °C (32 °F and

104 °F) and between 10 % rh (0.5 g/ m3 at 0 °C [32 °F]) and 90 % rh (46 g/ m3 at 40 °C [104 °F]).




– carbon dioxide up to 15 vol.% (n=2) or 3 vol.% (n=10). – higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene) aromatic hydrocarbons (e. g. benzene), halogenated hydrocarbons (e. g. trichloromethane, trichloroethylene), nitriles (e. g. acrylonitrile), carbon disulfide, acetic acid up to 1 vol.% (n=2) or 2000 ppm (n=10). – ammonia, sulfur dioxide up to 1000 ppm (n=2) or 200 ppm (n=10). – hydrogen sulfide, hydrogen chloride up to 300 ppm (n=2) or 60 ppm (n=10). Hydrogen sulfide discolors the protective layer from white to brown. – nitrogen dioxide up to 100 ppm (n=2) or 20 ppm (n=10).

b) Free halogens (chlorine, bromine) are not indicated but will decrease stain length of hydrogen cyanide indication even when concentrations correspond to measuring range of detector tube.


Detector Tube CO-0,1 %





3. Measuring Range 0.1 vol.% … 1.0 vol.% carbon monoxide at n=1 (1 stroke).

4. Chemical Reaction and Color Change Oxidation of carbon monoxide by iodine pentoxide in fuming sulfuric acid. Color change: white/yellowish → brown


6. Interferences and Cross Sensitivities a) No interference from: – sulfur dioxide, nitrogen dioxide, propane up to 1 vol.%.

– higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene) up to 200 ppm.

b) Interfering concentrations of hydrocarbons may be eliminated by adding a charcoal filter tube Ads (804403).




Detector Tube CO-10 (ppm)

1. Application Detection of carbon monoxide (CO) in air or in technical gases. 2. Detector Tube Sampling Pump MSA AUER Gas-Tester®



3. Measuring Range 100 ppm … 3,000 ppm carbon monoxide at n = 1 (1 stroke)

10 ppm ... 300 ppm carbon monoxide at n = 10 (10 strokes). Any number of strokes from 1 to 10 can be chosen. For calculation use n=10 scale, relate as follows:

10 x indication on n=10 scale ppm CO =

no. of strokes chosen 4. Chemical Reaction and Color Change Oxidation of carbon monoxide by iodine pentoxide in fuming sulfuric acid. Color change: white → brown / green.

5. Ambient Conditions During Sampling Detector tubes can be used without compensation of the reading between -10 °C and 50 °C (10 °F

and 120 °F) and up to 90 % rh (75 g/m3 at 50 °C [120 °F]) water vapor will not affect accuracy of indication. Water vapor will be absorbed by the protective layer changing its color from brown to yellow. Do not use detector tube if protective layer has totally changed color.

6. Interferences and Cross Sensitivities a) No interference from: Methane, carbon dioxide, as well in concentrations above 50 vol.%.

– Hydrogen, ethane up to 10 vol.% (n = 1) or 1 vol.% (n = 10); higher concentrations discolor the whole indicating layer, a sharp stain edge is not formed. – sulfur dioxide, nitrogen oxide, nitrogen dioxide up to 1 vol.% (n = 1) or 1,000 ppm (n=10).



b) Propane and higher saturated hydrocarbons, olefinic hydrocarbons, hydrogen sulfide discolor the protective layer from brown to greenish. At least 3,000 ppm (n = 1) or 300 ppm (n =10) of propane, olefinic hydrocarbons (e.g. ethylene) and hydrogen sulfide are retained. Retention is lower for butanes and higher saturated hydrocarbons (e.g. hexanes). Concentrations of hydrocarbons exceeding the protective capacity may be eliminated by adding a charcoal filter tube Ads (804403).

c) Acetylene is indicated: 1,000 ppm is indicated as approx. 400 ppm CO (n = 1).





Detector Tube CO-10 (vol.%)

1. Application Detection of carbon monoxide (CO) in air or in technical gases. 2. Detector Tube Sampling Pump MSA AUER Gas-Tester®



3. Measuring Range 0.01 vol.% … 0.3 vol.% carbon monoxide at n = 1 (1 stroke)

0.001 vol.% ... 0.03 vol.% carbon monoxide at n = 10 (10 strokes). Any number of strokes from 1 to 10 can be chosen. For calculation use n=10 scale, relate as follows:

10 x indication on n=10 scale vol. % CO =

no. of strokes chosen 4. Chemical Reaction and Color Change

Oxidation of caColor change:

rbon xide io in fuming sulfuric acid. monowhite

by→

dine pentoxide brown / green.

5. Ambient Conditions During Sampling 120 °F) and up to 90 % rh (75 g/m3 at 50 °C [120 °F]) water vapor will not affect accuracy of

indication. Water vapor will be absorbed by the protective layer changing its color from brown to yellow. Do not use detector tube if protective layer has totally changed color.



– Methane, carbon dioxide, as well in concentrations above 50 vol.%. – Hydrogen, ethane up to 10 vol.% (n = 1) or 1 vol.% (n = 10); higher concentrations discolor the whole indicating layer, a sharp stain edge is not formed. – sulfur dioxide, nitrogen oxide, nitrogen dioxide up to 1 vol.% (n = 1) or 0.1 vol.% (n=10).

b) Propane and higher saturated hydrocarbons, olefinic hydrocarbons, hydrogen sulfide discolor the protective layer from brown to greenish. At least 0.3 vol.% (n = 1) or 0.03 vol.% (n =10) of propane, olefinic hydrocarbons (e.g. ethylene) and hydrogen sulfide are retained. Retention is lower for butanes and higher saturated hydrocarbons (e.g. hexanes). Concentrations of hydrocarbons exceeding the protective capacity may be eliminated by adding a charcoal filter tube Ads (804403).

c) Acetylene is indicated: 0.1 vol.% is indicated as approx. 0.04 vol.% CO (n = 1).





Detector Tube Nitr-0.5

1. Application Detection of nitrous fumes (nitric oxide + nitrogen dioxide, NO + NO2)in air or in technical gases.




3. Measuring Range 0.5 ... 50 ppm nitrous fumes at n=5 (5 strokes).


indicating layer, it has to be oxidized in the conversion layer to nitrogen dioxide.

Color change: white or light blue → dark blue




a) No interference from: – hydrogen, methane, ethane

– nitrous oxide up to 1 vol %. , propane, carbon monoxide, carbon dioxide.

– higher saturated hydrocarbons (e.g. butanes, octanes), aromatic hydrocarbons (e.g. benzene), sulfur dioxide up to 1000 ppm.



Detector Tube CO2-0,1%





3. Measuring Range 0.5 vol.% ... 7 vol.% carbon dioxide at n=1 (1 stroke)

0.1 vol.% ... 1.2 vol.% carbon dioxide at n=5 (5 strokes)

4. Chemical Reaction and Color Change Reaction of carbon dioxide with hydrazine. Change of pH-value indicated by color change of acid-

baseindicator. Color change: white → violet.




– higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene), aromatic hydrocarbons (e. g. benzene) up to 1 vol.% (n=5). – Sulfur dioxide, hydrogen sulfide, nitrogen dioxide, hydrogen chloride and other acidic gases up to 1000 ppm (n=1) or 200 ppm (n=5). – ammonia up to 1000 ppm (n=1) or 200 ppm (n=5).






Detector Tube C6H6-5

1. Application Detection of benzene (C6H6) in air or in technical gases.




3. Measuring Range 5 ppm ... 100 ppm benzene at n=10 (10 pump strokes).

4. Chemical Reaction and Color Change Oxidation of benzene by an iodate/ sulfuric acid reagent. Color change: white → brown.


d in the humidity range up to 15 g/m3 (85 % rh at 20°C [68°F], 30% rH at and 104 °F) an40°C [104°F]).

6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, propane, butanes, carbon mono

– sulfur dioxide, nitric oxide, nitrogen dioxide up to 1000 ppm. xide, carbon dioxide.

b) Saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene), hydrogen sulfide, carbon disulfide will be indicated by a slight brown or pink discoloration. The benzene indication is distinctly readable against that background.

c) Higher aromatic hydrocarbons (e.g. toluene, xylenes) will be indicated by a reddish brown discoloration. The sensitivity of indication is lower than for benzene.

Information Data Sheet Detector Tube

QUALITEST QL

1. Application Detction of dangerous (toxic or combustible) gases and vapors in air.In particular fot testing the air

in confined spaces such as fuel tanks, storage bins, cable vaults, sewers. Furthermore the tube QL can be used to detect or localize leaks, e.g. in pipelines.

2. General Description

The detector tube QL does not have any calibration scale. The indication is non-specific and qualita-tive, i. e. only the presence resp. the absence of contaminants will be detected. The indication gives no information about type or concentration of contaminants detected. A special detector tube with quantitative indication shoud be used if the presence or the concentration of a known contaminant is to be determined. This applies also to substances which can not be indicated by the detector tube QL. The various contaminants are indicated with different sensitivity. However, the detector tube is sufficiently sensitive for all listed substances. Normally, concentrations of a few ppm are detectable. Among others, the following substances are indicated: Acetone, acetylene, benzene, 1.3-butadiene, butanes, butylenes, carbon disulfide, carbon monoxide, cyclohexane, diesel oil, ethanol (ethyl alcohol), ethylene, formic acid, fuel oil, gasoline (engine fuel),hydrogen chloride, hydrogen sulfide, kerosene, liquid petroleum gas (propane, butanes), methyl ethyl ketone (butanone), pentanes and other saturated hydrocarbons, phenol, propane, propanols (propyl alcohols), propylene, styrene, tetrachloroethylene (perchloroethylene), toluene, town gas (with CO contents higher than 1 vol. %), 1.1.1-trichloroethane (chloroform), vinyl chloride, xylenes. The detector tube QL is not suitable to detect sensitively - among others - the following substances: Acetic acid, ammonia, bromine, carbon dioxide, carbon tetrachloride (tetrachloromethane), chlorine, ethane, ethylene oxide, fluorinated hydrocarbons (Freons, Frigenes), hydrogen, hydrogen cyanide, hydrogen fluoride, methane, nitrogen dioxide, phosgene, sulfur dioxide.

3 Detector Tube Sampling Pump MSA AUER Gas-Tester® IIH, Gas-Tester® I / ThumbPump™-Sampler, Toximeter® II, MSA Kwik-

Draw™-Pump or other suitable detector tubes pumps. Observe respective instructions for use.

4. Chemical Reaction and Color Change Oxidation of contaminants by iodine pentoxide in fuming sulfuric acid. Color change: white → brown or green, depending on compound present.



5. Ambient Conditions During Sampling • Detector tubes can be used in the temperature range -10 °C ... 50 °C (14 °F ... 120 °F).

• High contents of water vapor in the sample air produce a slight pink discoloration of the indicating layer. Do not evaluate this discoloration. The layer discolored by water vapor does not indicate any contaminant. Indication will be produced from the point at which indicating material is unaffected by water. Do not use tubes for repeated sampling if indicator layer is changed by water more than a quarter of its length.

6. General Informations and Cautions High concentration of contaminants may cause a decoloration of an initially produced indication thus

suggesting the non existence of harmful substances. To avoid false interpretation, observe indicating layer for color change during first pump stroke. When using a sampling hose, deviating from normal procedure insert detector tube QL between pump and sampling hose. Perform an additional pump stroke. Used detector tubes without any color change may be used repeatedly - depending on moisture content of air sample - 10 to 20 times on the same day.


Detector Tube Gasoline Test BNZ

1. Application Monitoring the atmosphere for the presence of hydrocarbon (gasoline) vapors. Vapors of

hydrocarbon mixtures with boiling points in the range of approx. 30 °C (86 °F) to approx. 200 °C (392 °F) can be detected, e.g. vapors of gasoline used as extraction, solvent or cleaning fluid and vapors of light volatile fuels.




3. Measuring Range The detector tubes have two marking rings which correspond to the following concentrations of

gasoline vapors: Marking ring “a”: approx. 100 ppm Marking ring “b”: approx. 2000 ppm These concentrations values refer to n-hexane and 2 pump strokes (n=2).

4. Chemical Reaction and Color Change Oxidation of gasoline hydrocarbons by a chromate/sulfuric acid-reagent. Color change: orange → green/brownisch-black.

5. Ambient Conditions During Sampling Accuracy of indication is not affected by temperatures between 0 °C ... 40 °C (32 °F ... 104 °F).

6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, carbon monoxide, carbon dioxide also in concentrations above 50 vol %.

– sulfur dioxide, nitrogen dioxide up to min. 1000 ppm (n=10).

b) Propane, butanes and acetylene will discolor the complete indicating layer without creating a color zone.

c) Olefinic hydrocarbons (e.g. ethylene), aromatic hydrocarbons (e.g. benzene), hydrogen sulfide will be indicated. The sensitivity varies.

d) Shorter readings will result if the amount of aromatic hydrocarbons in the liquid gasoline exceeds 50 %.




Detector Tube SO2-1

1. Application Detection of sulfur dioxide (SO2) in air or in technical gases.




3. Measuring Range 1 ppm … 25 ppm sulfur dioxide at n=3 (3 strokes).

0.5 ppm ...8 ppm sulfur dioxide at n=10 (10 strokes).

4. Chemical Reaction and Color Change Reaction of sulfur dioxide with iodine. Iodine will be reduced to iodide. Color change: violet → white.

5. Ambient Conditions During Sampling • Detector tubes can be used between 10°C and 30°C (50°F and 86°F) and between 10% rh

(0.9 g/m3 at 10°C [50°F]) and 90% rh (27 g/m3 at 30°C [86°F]).

6. Interferences and Cross Sensitivities a) No interference from: – higher saturated hydrocarbons (e. g. hexanes, octanes), aromatic hydrocarbons (e. g.

benzene) up to 1000 ppm. – hydrogen sulfide up to 100 ppm (n=3) or 40 ppm (n=10). Hydrogen sulfide will be retained by the protective layer changing its color (light blue → brown). Do not use the detector tube if protective layer has totally change its color. – hydrogene chloride up to 25 ppm (n=3) or 10 ppm (n=10).

b) Chlorine, ammonia, nitrogene dioxide, olefinic hydrocarbons (e. g. ethylene) are not indicated but possibly will shorten indication stain of sulfur dioxide even when concentrations correspond to the measuring range of detecdtor tube.




Detector Tube Cl2-0.2

1. Application Detection of chlorine (Cl2) in air or in technical gases.




3. Measuring Range 0.2 ppm ... 3 ppm chlorine at n=10 (10 strokes)

Any number of strokes from 1 to 10 can be chosen. For calculation use n=10 scale, relate as follows: 10 x indication on n=10 scale

ppm Cl2 =


4. Chemical Reaction and Color Change Oxidation of an aromatic amine by chlorine. Color change: white → orange / yellow.



6. Interferences and Cross Sensitivities a) No interference from: – methane, ethane, propane, carbon monoxide.

– hydrogen, carbon dioxide up to 10 vol. % (n=10). – olefinic hydrocarbons (e.g. ethylene) aromatic hydrocarbons (e.g. benzene), hydrogen chloride, phosgene up to 1000 ppm (n=10).

b) Sulfur dioxide, hydrogen sulfide, hydrogen cyanide, ammonia are not indicated but will decrease stain length of chlorine indication even when concentrations correspond to measuring range of detector tube.

c) Chlorine dioxide, bromine, ozone, nitrogen dioxide will be indicated. The sensitivity of indication is different. Up to 3 ppm (n=10) the detector tube scale is applicable for bromine as well as for chlorine. Higher concentrations of bromine are indicated




Action Detector Tube Alcohols-A

1. Application Quick orientative check of ambient atmosphere for hazardous concentrations of vapours of several

alcohols.




3. Measuring Range The action detector tube has two marks conforming the following concentrations:

Mark 1: 200 ppm methanol at n=5 (5 strokes). Mark 2: 1000 ppm methanol at n=5 (5 strokes).

4. Chemical Reaction and Color Change Oxidation of alcohols by a chromate/sulfuric acid reagent. Color change: red → greyish-green




– higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene), aromatic hydrocarbons (e.g. benzene) up to 1 vol %. – halogenated hydrocarbons (e.g. trichloroethane, trichloroethyle, chlorobenzene ), hydrogen sulfide, carbon disulfide, acetic acid up to 5000 ppm. – aldehydes, ketones, ethers, esters up to 1000 ppm. – sulfur dioxide,ammonia,hydrogen cyanide, phosgene up to 100 ppm. – nitric oxide, nitrogen dioxyde, chlorine, hydrogen chloride, phosgene up to 10 ppm.




Action Detector Tube

Halogenated Hydrocarbons-A

1. Application Quick orientative check of ambient atmosphere for hazardous concentrations of vapors of several

easiy oxidizable halogenated hydrocarbons.





Mark 1: 50 ppm trichloroethylene at n=2 (2 strokes). Mark 2: 150 ppm trichloroethylene at n=2 (2 strokes).

4. Chemical Reaction and Color Change Oxidative decomposition of halogenated hydrocarbons in the conversation layer by a

chromate/sulfuric acid reagent, forming chlorine or bromine. Oxidation of an aromatic amine by chlorine resp. bromine in the indicating layer.





– propane, butanes, chloromethane, dichloromethane, carbon tetrachloride, bromomethane, fluorinated methanes, fluorinated ethanes up to 5,000 ppm. – ammonia, sulfur dioxide, hydrogen cyanide up to 100 ppm.



b) Higher saturated hydrocarbons (e.g. hexanes), olefinic hydrocarbons (e.g. ethylene), aromatic hydrocarbons (e.g. benzene), hydorgen sulfide, carbon disulfide, alcohols, ketones, ethers, esters produce no indication. Inthe presence of these substances part of conversation layer will be consumed. Indication of halogenated hydrocarbons then may be lower than actually present. High concentrations of those accompanying substances discolor conversation layer from brown to greenish. Do not use detector tube in this case.

c) halogens (chlorine, bromine), hydrogen chloride, phosgene, nitric oxide, nitrogen dioxide are indicated. The sensitivity varies.


Action Detector Tube Gasoline-A

1. Application Quick orientative check of ambient atmosphere for hazardous concentrations of vapors of several

aliphatic hydrocarbons.





Mark 1: 100 ppm n-hexane at n=2 (2 strokes). Mark 2: 1,000 ppm n-hexane at n=2 (2 strokes).

4. Chemical Reaction and Color Change Oxidation of aliphatic hydrocarbons by a chromate/sulfuric acid reagent. Color change: orange → green/brown-black


and 104 °F) and up to 90 % rh [46 g/m3 at 40 °C (104 °F)].


– sulfur dioxide, nitrogen dioxide up to 5,000 ppm. – ammonia up to 1,000 ppm – hydrogen cyanide up to 100 ppm. – chlorine, phosgene up to 10 ppm.

b) Propane, butanes, acetylene discolor the indicating layer totally so that stain end is not formed.

c) Hydrogen sulfide, carbon disulfide, nitric oxide, hydrogen chloride, aromatic hydrocarbons (e.g. benzene), halogenated hydrocarbons (e.g. trichloroethane, trichloroethylene), alcohols, ketones, ethers, esters are indicated. The sensitivity varies.




Action Detector Tube H2S-A

1. Application Quick orientative check of ambient atmosphere for hazardous hydrogen sulfide (H2S)

concentrations.





Mark 1: 10 ppm hydrogen sulfide at n=2 (2 strokes). Mark 2: 50 ppm hydrogen sulfide at n=2 (2 strokes).

4. Chemical Reaction and Color Change Reaction of hydrogen sulfide with lead compound forming lead sulfide. Color change: white → brown




– acetylene up to 5 vol %. – higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene), aromatic hydrocarbons (e.g. benzene) up to 1 vol %. – sulfur dioxide, carbon disulfide, nitric oxide, phosphine up to 5000 ppm. – hydrogen chloride, hydrogen cyanide, phosgene up to 100 ppm.

b) Halogens (chlorine, bromine), nitrogen dioxide, ammonia are not indicated but will shorten stain length of hydrogen sulfide even when concentrations correspond to measuring range of detector tube.




Action Detector Tube SO2-A

1. Application Quick orientative check of ambient atmosphere for hazardous sulfur dioxide (SO2) concentrations.





Mark 1: 2 ppm sulfur dioxide at n=2 (2 strokes). Mark 2: 10 ppm sulfur dioxide at n=2 (2 strokes).


5. Ambient Conditions During Sampling Detector tubes can be used between 10°C and 30°C (50°F and 86°F) and between 10% rh (0.9 g/m3 at 10°C [50°F]) and 90% rh (27 g/m3 at 30°C [86°F]).


– higher saturated hydrocarbons (e.g. hexanes, octanes), aromatic hydrocarbons (e.g. benzene) up to 1 vol.%.. – hydrogen sulfide up to 150 ppm. Hydrogen sulfide discolors the protective layer from light blue to brown. – hydrogen chloride, hydrogen cyanide, phosgene up to 25 ppm.

b) Chlorine, ammonia, nitrogen dioxide, olefinic hydrocarbons (e.g. ethylene) are not indicated but possibly will shorten indication stain of sulfur dioxide even when concentrations correspond to the measuring range of detector tube. .




Action Detector Tube HCl-A

1. Application Quick orientative check of ambient atmosphere for hazardous hydrogen chloride (hydrochloric acid

gas, HCl) concentrations.





Mark 1: 5 ppm hydrogen chloride at 2 pumpstrokes (n=2). Mark 2: 25 ppm hydrogen chloride at 2 pumpstrokes (n=2).


Color change: blue

→ yellow


and 95 °F) and between 20 % rh (19 g/m3 at 10 °C [50 °F]) and 80 % rh (32 g/m3 at 35 °C [95 °F]).

6. Interferences and Cross Sensitivities a) No interference from: - higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene),

aromatic hydrocarbons (e.g. benzene) up to 1 vol.%.. - sulfur dioxide, hydrogen sulfide, nitric oxide, nitrogen dioxide, hydrogen cyanide, ammonia up to 50 ppm.

b) Halogens (chlorine, bromine), phosgene, nitric acid vapors will be indicated. The sensitivity of indication is different.




Action Detector Tube Phosgen-A

1. Application Quick orientative check of ambient atmosphere for hazardous concentrations of phosgene

( Carbonyl chloride, COCl2). 2. Detector Tube Sampling Pump MSA AUER Gas-Tester®



3. Measuring Range The action detector tube has a mark conforming the following concentration:

0.5 ppm phosgene at n=5 (5 strokes).

4. Chemical Reaction and Color Change R eaction of phosgene with an aromatic amino aldehyde and an aromatic amine . Color change: yellow → green or blue/green



6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, carbon dioxide up to 10 vol. %.

– carbon monoxide, methane, ethane, propane, higher saturated hydrocarbons (e.g. hexanes, octanes), aromatic hydrocarbons (e.g. benzene), halogenated hydrocarbons (e.g. trichloroethane, trichloroethylene) up to 1 vol %. – sulfur dioxide, hydrogen cyanide, nitric oxide up to 100 ppm. – chlorine, hydrogen chloride, nitrogen dioxide up to 20 ppm.

b) Ammonia is not indicated, but possibly will decrease the indication stain length of phosgene.




Action Detector Tube Nitr-A

1. Application Quick orientative check of ambient atmosphere for hazardous nitrous fumes (nitric oxide + nitrogen

dioxide, NO + NO2) concentrations.





Mark 1: 5 ppm nitrous fumes at n=2 (2 strokes). Mark 2: 25 ppm nitrous fumes at n=2 (2 strokes).


indicating layer, it has to be oxidized in the conversion layer to nitrogen dioxide.

Color change: white or light blue → dark blue




– nitrous oxide up to 1 vol %. – higher saturated hydrocarbons (e.g. butanes, octanes), aromatic hydrocarbons (e.g. benzene), sulfur dioxide up to 1000 ppm. – hydrogen chloride, hydrogen cyanide, phogene up to 100 ppm.

b) olefinic hydrocarbons (e.g. ethylene), hydorgen sulfide, ammonia are not indicated, but possibly will shorten the indication stain of nitrous fumes.

c) halogens (chlorine, bromine), chlorine dioxide, ozone will be indicated. The sensitivity of indication is different.




Action Detector Tube CO2-A

1. Application Q uick orientative check of ambient atmosphere for hazardous carbon dioxide (CO2) concentrations.





Mark 1: 0,5 vol. % carbon dioxide at n=2 (2 strokes). Mark 2: 2,5 vol. % carbon dioxide at n=2 (2 strokes).

4. Chemical Reaction and Color Change Reaction of carbon dioxide with hydrazine. Change of pH-value causes color change of an acid-

baseindicator. Color change: white → violet



6. Interferences and Cross Sensitivities a) No interference from: – hydrogen, methane, ethane, propane, butanes, carbon dioxide.

– nitrous oxide up to 10 vol %. – higher saturated hydrocarbons (e.g. hexanes, octanes), aromatic hydrocarbons (e.g. benzene) up to 1 % vol. – acidic gases (e.g. sulfur dioxide, hydrogen sulfide, nitrogen dioxide, hydrogen chloride, hydrogen cyanide, chlorine, phosgene) up to 500 ppm. – nitric oxide, ammonia, phosphine up to 500 ppm






Detector Tube NH3-20

1. Application Detection of ammonia (NH3) in air or in technical gases.

2. Detector Tube Sampling Pump MSA AUER Gas-Tester® IIH, Gas-Tester® I / ThumbPump™-Sampler, Toximeter® II, MSA Kwik-

Draw™-Pump or other suitable detector tubes pumps. Observe respective instructions for use.

3. Measuring Range (20 ... 1,400) ppm ammonia at n=1 (1 stroke).


Color change: yellow → blue.





– carbon dioxide up to 4 vol %. – higher saturated hydrocarbons (e.g. hexanes, octanes), olefinic hydrocarbons (e.g. ethylene), aromatic hydrocarbons (e.g. benzene) up to 1 vol %. – hydrogen sulfide, nitrogen dioxide up to 1,000 ppm.

b) Other alkaline gases (amins, hydrazine) will be indicated. The sensitivity of indication is different.

c) Strong acidic gases (e.g. sulfur dioxide, hydrogen chloride, chlorine, phosgene are not indicated but will shorten stain length of ammonia even when concentrations correspond to measuring range of detector tube.




Detector Tube SO2-5

1. Application Detection of sulfur dioxide (SO2) in air or in technical gases.




3. Measuring Range 40 ppm … 200 ppm sulfur dioxide at n=1 (1 stroke).

5 ppm ... 50 ppm sulfur dioxide at n=3 (3 strokes).


5. Ambient Conditions During Sampling Detector tubes can be used between 10 °C and 30 °C (50 °F and 86 °F) and between 10 % rh

(0.9 g/m3 at 10 °C [50 °F]) and 90 % rh (27 g/m3 at 30 °C [86 °F]).


a) No interference from: – hydrogen, methane, ethane, propane, butanes, carbon monoxide, carbon dioxide.

– higher saturated hydrocarbons (e.g. hexanes, octanes), aromatic hydrocarbons (e.g. benzene) up to 1000 ppm. – hydrogen sulfide up to 200 ppm. Hydrogen sulfide will be retained by the protective layer changing its color (light blue Y brown). Do not use the detector tube if protective layer has totally change its color. – hydrogen chloride up to 50 ppm.

b) Chlorine, ammonia, nitrogen dioxide, olefinic hydrocarbons (e.g. ethylene) are not indicated but possibly will shorten indication stain of sulfur dioxide even when concentrations correspond to the measuring range of detector tube. .




Detector Tube Nitr-10

1. Application Detection of nitrous fumes (nitric oxide + nitrogen dioxide, NO + NO2) in air or in technical gases.




3. Measuring Range 10 ... 300 ppm nitrous fumes at n=2 (2 strokes).


indicating layer, it has to be oxidized in the conversion layer to nitrogen dioxide. Color change: yellowish → brown or blue/brown




a) No interference from: hydrogen, methane, ethane, propane, carbon monoxide, carbon dioxide, nitrous oxide.


c) Hydrocarbons (e.g. butanes, ethylene, acetylene), hydrogen sulfide, ammonia are not indicated, but possibly will shorten the indication stain of nitrous fumes.


Detector Tube Arsine-0.05

1. Application D etection of arsine (AsH3) in air or in technical gases.




3. Measuring Range 0.05 ppm ... 1 ppm arsine at n=10 (10 strokes)

4. Chemical Reaction and Color Change R eaction of arsine with silver compound forming metallic silver. Color change: white → brown

5. Ambient Conditions During Sampling • Detector tubes can be used without compensation of reading between 0 °C and 40 °C (32 °F and


6. Interferences and Cross Sensitivities a) No interference from: – higher saturated hydrocarbons (e. g. hexanes, octanes), olefinic hydrocarbons (e. g. ethylene)

aromatic hydrocarbons (e. g. benzene) up to 0,5 vol.% (n=10). – sulfur dioxide, carbon disulfide up to 500 ppm (n=10).

b) Phosphine gives a stain about twice as long as arsine

c) Hydrogen sulfide will be indicated by a yellow-brown stain, significantly lighter than arsine stain and with a similar stain lenght.

d) Acetylene will not be indicated.






Detector Tube Ethyl acetate-200

1. Application Detection of ethyl acetate (C4H8O2) in air or in technical gases.




3. Measuring Range 200 ppm ... 3000 ppm ethyl acetate at n = 20 (20 pump strokes).

4. Chemical Reaction and Color Change

Oxidation of etColor change:

hyl a ro cid reagent. cetate by orange

a ch→

mate/sulfuric agrey/green.

5. Ambient Conditions During Sampling Detector tubes can be used between 5 °C and 40 °C [41 °F and 104° F] and between 3 and 15 g

H O/m3. 2The calibration scale on detector tube is exactly valid if tubes have a temperature of 20 °C (68 °Fduring measurement. If detector tube temperature deviates from 20 °C (68 °F), multiply reading (ppm) with appropriate correction factor (see table):

)


5

10 15 20 25 30 35 40


41 50 59 68 77 86 95 104

Correction factor 2 1,4 1,25 1 0,8 0,7 0,65 0,6

6. Interferences and Cross Sensitivities Saturated hydrocarbons (e.g. hexane), aromatic hydrocarbons (e.g. benzene), alcohols (e.g.

ethanol), cetones (e.g. acetone), ethers and esters will be indicated. The sensitivity of indication is different.

original detector tubes sheet

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