Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 8431 (1986): Tracing paper [CHD 15: Paper and itsproducts]

IS : 8431 - 1986 (Reaffirmed 2010)

Indian StandardSPECIFICATION FOR

TRACING PAPER

(First Revision)

Second Reprint JANUARY 2000

UDC 676.242.2

© Copyright 1987

BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Gr 2 January 1987

AMENDMENT NO. 2 SEPTEMBER 2008 TO

IS 8431 : 1986 SPECIFICATION FOR TRACING PAPER

( First Revision )

(Page 6, clause 4.8, read with Amendment No. 1) — Substitute 'Additional Requirements for ECO Mark' for 'Optional Requirements for ECO Mark'.

(CHD 15)

Reprography Unit, BIS, New Delhi, India

AMENDMENT NO. 1 SEPTEMBER 1993 TO

IS 8431 : 1986 SPECIFICATION FOR TRACING PAPER (First Revision)

( Page 3, clause 0.7 ) — Add this new clause after clause 0.6 and renumber the subsequent clause:

'0.7 A scheme for labelling environment friendly products known as ECO Mark has been introduced at the instance of the Ministry of Environment and Forests (MEF), Government of India. The ECO Mark would be administered by the Bureau of Indian Standards (BIS) under the BIS Act, 1986 as per the Resolutions No. 71 dated 21 February 1991 and No. 425 dated 28 October 1992 published in the Gazette of the Government of India. For a product to be eligible for marking with ECO logo, it shall also carry the Mark of BIS besides meeting additional optional environment friendly requirements. For this purpose, the Standard Mark of BIS would be a single mark being a combination of the Mark and the ECO logo. Requirements to be satisfied for a product to qualify for the BIS Standard Mark for ECO friendliness, will be inlcuded in the relevant published Indian Standards through an amendment. These requirements will be optional; manufacturing units will be free to opt for the Mark alone also.

This amendment is baaed on the Gazette Notification No. 455 dated 13 November 1992 for paper as environment friendly products published in the Gazette of India. This amendment is, therefore, being issued to this standard to include environment friendly requirements for tracing paper.'

( Page 6, clause 4.7 ) — Add the following new clause after 4.7:

'4.8 Optionl Requirements for ECO Mark

4.8.1 General Requirements

4.8.1.1 The product shall conform to the requirements for quality and performance prescribed under clauses 4.1 to 4.7.

4.8.1.2 The manufacturer shall produce to BIS, the environmental consent clearance from the concerned Stale Pollution Control Board as per the provisions of Water (Prevention and Control of Pollution) Act, 1974 and Air (Prevention and Control of Potation) Act, 1981 along with the authorisation, if required, under the Environment (Protection) Act, 1986 and the rules made thereunder, while applying for ECO Mark.

1

4.8.2 Specific Requirements

4.8.2.1 The material shall be of the following two types depending on the raw material used in the manufacture:

a) Type A — Manufactured from pulp containing not less than 60 percent by mass of pulp made from materials other than bamboo, hard woods, soft woods and reed.

b) Type B — Manufactured from pulp made from 100 percent waste paper.' (Page 6, clause 5.1) — Add the following new clause after 5.1:

'5.1.1 For ECO Mark, the product shall be packed in such packages which shall be recyclable/reusable or biodegradable.'

(Page 7, clause 5.2.1) — Add the following new clause after 5.2.1:

'5.2.2 For ECO Mark, following additional information may also be marked on the container/package:

The criteria for which the product has been labelled with ECO Mark.'

(CHD 015) Printed at New India Printing Press, Khurja, India

2

IS : 8431 - 1986

Indian Standard SPECIFICATION FOR

TRACING PAPER

(First Revision)

Paper and its Products ( Excluding Packaging Material ) Sectional Committee, CDC 15

Chairman SHRI N. NARASIMHAN

26, Anna Nagar, Pondicherry Members

CHIEF CHEMIST, CRCL, NEW DELHI

Representing Central Revenues Control Laboratory, New

Delhi DEPUTY CHIEF CHEMIST, CENTRAL

EXCISE LAB, BOMBAY (Alternate ) SHRI S. K. CHOPRA SHRI B. D. GULIYANI

Indian Paper Makers' Association, Calcutta Ministry of Defence ( DGI )

SHRI J. S. SUNDERASAN (Alternate) SHRI PARMOD JAIN All India Small Paper Mills' Association, Bombay

SHRI R. K. RAJGARHIA ( Alternate ) SHRI JIVENDRA

SHRI K. V. KRISHNAMURTHY SHRI P. DAYAL ( Alternate)

SHRI D. MAHANTA

Indian Pulp & Paper Technical Association, Saharanpur

I.T.C. Ltd, Calcutta

Regional Research Laboratory ( CSIR ), Jorhat SHRI C. N. SAIKIA ( Alternate)

SHRI V. K. MAKHIJA All India Federation of Master' Printers, New Delhi

SHRI S. P. DHAWAN ( Alternate ) SHRI H. MITRA

SHRI S. B. BANDOPADHYAY (Alternate) DR A. PANDA

Controller of Stationery, Govt of India Stationery Office, Calcutta

Hindustan Paper Corporation Ltd, Calcutta SHRI R. K. PILLAI ( Alternate )

DR RAJESH PANT Central Pulp & Paper Research Institute, Dehra Dun

( Continued on page 2 )

© Copyright 1987 BUREAU OF INDIAN STANDARDS

This publication is protected under the Indian Copyright Act (XIV of 1957) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under the said Act.

IS : 8431 - 1986

( Continued from page 1 ) Members

SHRI A. N. RAO

SHRI P. V. MEHTA ( Alternate DR N. J. RAO

DR S. BHARATI ( Alternate ) DR V. N. SEHGAL

SHRI M. K. JAIN ( Alternate ) SHRI V. K SHARMA

SHRI G. M. MATHUR ( Alternate ) SHRI P. S. SHIVARAM

SHRI K. S. A. CHARY ( Alternate ) SHRI MAN MOHAN SINGH

SHRI N. C. SENGUPTA ( Alternate ) DR R. S. TRIPATHI

Representing Directorate General of Technical Development,

New Delhi

Institute of Paper Technology, Saharanpur

Central Forensic Science Laboratory, New Delhi

Forest Research Institute & Colleges, Dehra Dun

India Security Press, Nasik Road

Indian Paper Mills Association, Calcutta

Mandya National Paper Mills Ltd, Belagula

SHRI J. SUNDAR RAM (Alternate ) SHRI PREM OBEROI Federation of Paper Traders Association of

India, Bombay SHRI RAMESH S. DESAI ( Alternate )

SHRI SATISH CHANDER, Director General, ISI ( Ex-officio-Member ) Director ( Chem )

Secretary SHRI E. DEVENDAR

Assistant Director (Chem ), ISI

Speciality Paper

Convener

DR M. B. JAUHARI

Members

Subcommittee, CDC 151:9

Ballarpur Industries Ltd, New Delhi '

SHRI S. K. NANGIA ( Alternate to Dr M. B Jauhari )

SHRI N. K. GUPTA Titaghur Paper Mills Ltd, Titagarh DR S. C. JAIN Pamwi Speciality & Tissues Paper Ltd,

Chandigarh SHRI Y. BHARGAVA (Alternate)

SHRI JIVENDRA J. K. Paper Mills Ltd, Jaykaypuram SHRI A. S. LAKSHMANAN Senapati Whitlay ( P) Ltd, Bangalore

SHRI B. A. GOVINDARAJ (Alternate) SHRI P. V. MEHTA Directorate General of Technical Development,

New Delhi SHRI V. S. SAXENA ( Alternate )

( Continued on page 8 )

2

IS : 8431 - 1986

Indian Standard SPECIFICATION FOR

TRACING PAPER

(First Revision)

0. F O R E W O R D 0.1 This Indian Standard ( First Revision ) was adopted by the Indian Standards Institution on 27 February 1986, after the draft finalized by the Paper and its Products (Excluding Packaging Material) Sectional Committee had been approved by the Chemical Division Council. 0.2 Tracing papers are used in tracing of drawings, development of original drawings, base paper for sectional tracing papers and for other purposes. They may be natural ( untreated ) or treated (transparentized) with suitable materials. In addition to good transparency, tracing papers should have good strength and permanency so that they may be kept over long periods without deterioration or much change in opacity. 0.3 This specification was first published in 1977 based on tests carried out on indigenous samples at the Institute of Paper Technology, Saharanpur. 0.4 Of late, has been felt that there should be a clear cut distinction between tracing paper which have to be preserved for long and tracing paper which need not be preserved. In this revision, distinction is made between tracing paper of the permanent and non-permanent type. 0.5 The tracing paper covered in this standard is not meant for repro­duction tracing purposes by contact printing and ammonia vapour development or moist development. Requirements of reproduction tracing paper is covered in IS : 9033-1978*. 0.6 This standard contains clauses 4.5, 4.6, 4.7 and 5.1 which call for agreement between the purchaser and the supplier and which permit the purchaser to use his option for selection to suit his requirements. 0.7 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated,

*Specification for reproduction tracing paper.

3

IS : 8431 - 1986

expressing the result of a test or analysis, shall be rounded off in accordance with IS : 2-1960*. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

1. SCOPE 1.1 This standard prescribes the requirements and methods of sampling and test for tracing papers used in tracing of drawings and development of original drawings. 1.2 This standard does not cover the requirements of diazo reproduction tracing paper. 2. TERMINOLOGY 2.0 For the purpose of this standard, the definitions given in IS: 4661-1986† and the following shall apply. 2.1 Natural Tracing Paper, Permanent Type – Paper which has been made translucent by mechanical or similar means during the process of manufacture and rendered suitable for use with ink or pencil or both, meant for permanent records 2.2 Natural Tracing Paper, Non-Permanent Type — Paper which has been made translucent by mechanical or similar means during the pro­cess of manufacture and rendered suitable for use with ink or pencil or both, not meant for longer preservation. 2.3 Treated Tracing Paper, Permanent Type — Paper which has been treated with oil, resin, or waxes to make it translucent and suitable for use with ink or pencil or both, meant for permanent records. 2.4 Treated Tracing Paper, Non-Permanent Type — Paper which has been treated with oil, resin, or waxes to make it translucent and suitable for use with ink or pencil or both, not meant for longer preservation. 3. TYPES 3.1 There shall be four types of tracing papers given below:

a) Type 1 A — Natural tracing paper, permanent type; b) Type 1 B — Natural tracing paper, non-permanent type; c) Type 2 A — Treated tracing paper, permanent type; and d) Type 2 B — Treated tracing paper, non-permanent type.

*Rules for rounding off numerical values ( revised). †Glossary of terms used in paper trade and industry (first revision)

4

IS : 8431 - 1986

4. REQUIREMENTS 4.1 Description — All tracing papers shall be of uniform texture with smooth, matt or slightly grained surface and shall be free from spots, wrinkles, pinholes or other defects which may interfere with the intended use. The tracing paper shall be suitable for pencil and ink lines, yielding solid lines without skipping, feathering or spreading and shall not produce smudging. They shall not show surface cracks or abrasions in normal use to the extent that such cracks or abrasions are visible on prints made therefrom. 4.2 The paper shall also comply with the requirements given in Table 1 when tested in accordance with methods referred to in col 7 of the table.

TABLE 1 REQUIREMENTS FOR TRACING PAPER

SL CHARACTERISTIC REQUIREMENT FOR No.

Type 1A Type 1B Type 2A Type 2B

(1) (2) (3) i) Grammage, g/m2 Below 50 ii) Double fold, each 100

direction, Min iii) Opacity, Max 40 iv) Tear index, mN.m2/g,

Min 2.5

(4) (5) Above 50 Below 50

150 30

50 55

2.5 2.5

Tear Index = Tear Factor × 0.098

METHOD OF TEST ( REF TO

CLAUSE NO. OF

IS : 1060 ( PART 1)-1966*

(6 Above 50

40

60

2.5

(7) 6

126

160

12.7

*Methods of sampling and test for paper and allied products: Part 1 ( revised).

4.3 Accelerated Ageing — Natural tracing paper permanent type ( Type 1A) and treated tracing paper, permanent type ( Type 2A ) shall be subjected to accelerated ageing by heating in an oven at 105 ± 2°C for 72 hours, after which they shall be tested for folding endurance and opacity and shall satisfy the following conditions:

a) The paper shall retain at least 50 percent of its original double fold; and

b) The opacity shall not increase by more than 5 points for paper with nominal grammage up to 50 g/m2. Tn the case of higher nominal grammages, it shall not increase by more than 15 points.

5

IS : 8431 - 1986

The opacity of the aged specimen shall be determined for the same area as before ageing. 4.4 Drafting Tests

4.4.1 Lines shall be drawn upon different portions of the samples with a pencil containing black graphite 2H lead ( see IS : 1375-1981* ) and erased with eraser. There shall be no appreciable change in colour of the erased surface and no perceptible linting of the paper. For Types 1A and 1B tracing papers, the surface shall withstand at least three erasures and for Types 2A and 2B tracing papers, the surface shall with­stand at least two erasures of lines drawn with pencil without leaving ghost or trace of sufficient intensity to produce an image on reprint.

4.4.2 Lines of varying widths of black drawing ink ( see IS : 789-1971† ) shall be drawn upon different portions of the samples and carefully inspected. There shall be no appreciable spreading, feathering or skips. Both types of tracing papers shall withstand at least two erasures of ink lines drawn and redrawn. 4.5 Size and Tolerance on Sizes — The tracing paper shall be in the form of either rolls or sheets as agreed to between the purchaser and the supplier. The sizes and tolerances on sizes shall be in accordance with IS : 1064-1980‡ or IS : 10711-1983§ unless otherwise agreed to between the purchaser and the supplier. 4.6 Grammage and Tolerance on Grammage — The grammage shall be as specified by the purchaser. A tolerance of ±5 percent shall be allowed on the nominal grammage when tested in accordance with 6 of IS : 1060 (Part 1) - 1966||. 4.7 Optional Requirement — If agreed to between the purchaser and the supplier, Types 2A and 2B tracing paper shall also be suitable for print­ing charts and maps by means of multicolour off-set lithography and shall not develop any curl when so printed. 5. PACKING AND MARKING 5.1 The paper shall be packed as agreed to between the purchaser and the supplier. 5.2 Each package shall be marked with the following particulars:

a) Description, type and grammage of paper; *Specification for black lead pencils (first revision ). ‡Specification for ink, drawing, waterproof black (first revision).

‡Specification for paper sizes (second revision). §Specification for sizes of drawing sheets.

||Methods of sampling and test for paper and allied products: Part 1 (revised).

6

IS : 8431 - 1986

b) Size of the paper; c) In the case of sheets the mass in kg per ream of 500 sheets

including wrapping paper; in the case of rolls, the mass in kg of the roll including the mass of core and plugs;

d) Lot number; e) Month and year of manufacture; and f) Manufacturer's name or recognized trade-mark, if any.

5.2.1 The containers may also be marked with the Standard Mark.

5.2.2 The use of the Standard Mark is governed by the provisions of Bureau of Indian Standards Act, 1986 and the Rules and Regulations made thereunder. The details of conditions under which the licence for the Standard Mark may be granted to manufacturers or producers may be obtained from the Bureau of Indian Standards.

6. SAMPLING AND CRITERIA FOR CONFORMITY 6 1 Representative samples of packets or rolls of tracing paper shall be selected from each lot as prescribed in 3 of IS : 1060 ( Part 1 )-1966*. 6.2 Number of Tests — Each of the packets or rolls selected from the lot shall be examined for size according to 5.5. From each of these packets or rolls, a test sample of the quantity sufficient to carry out all the tests given in the specification, shall be taken and examined for description given in 4.1. The test sample, having satisfied general requirements shall be tested for grammage, double fold, opacity, tear index, accele­rated ageing and drafting. A test sample failing to meet any of these requirements shall be considered as detective.

NOTE — For grammage, double fold, opacity and tear index, five test specimens shall be separately cut from each test sample and average of the five test results shall be repotted.

6.3 Criteria for Conformity — A lot shall be considered as conforming to the requirements of the specification, if the number of test samples found defective is less than or equal to the acceptance number. This acceptance number shall depend upon the size of the sample and shall be equal to zero if the sample size is less than 13. It shall be equal to 1 if the sample size is greater than or equal to 13.

*Methods of sampling and test for paper and allied products: Part 1 ( revised ).

7

IS : 8431 - 1986

( Continued from page 2 ) Members

DR N. D. MISRA SHRI P. B. MUNDAS DR RAJESH PANT

SHRI Y. V. SOOD ( Alternate ) SHRI R. P. PUDUMJEE

SHRI A. J. LOBO (Alternate) D R N. J. RAO

DR S. BHARATI (Alternate ) SHRI Y. K. SHARMA

SHRI G. M. MATHUR ( Alternate )

Representing Sirpur Paper Mills Ltd, Kaghaznagar Tribeni Tissues Ltd, Calcutta Central Pulp & Paper Research Institute,

Dehra Dun

Pudumji Pulp & Paper Mills Ltd, Bombay

Institute of Paper Technology, Saharanpur

Forest Research Institute & Colleges, Dehra Dun

Panel for Tracing Paper, C D C 15 : 9 : 2

Convener

SHRI Y. K. SHARMA

Members Forest Research Institute & Colleges, Dehra Dun

SHRI G. M. MATHUR ( Alternate to Shri Y. K. Sharma )

DR S. BHARATI Institute of Paper Technology, Saharanpur SHRI ASHOK KUMAR ( Alternate )

SHRI S. CHAKRABORTY Macneill & Magor Ltd, Calcutta SHRI A. GHOSH National Test House, Calcutta

SHRI S. M. LAHIRI (Alternate) SHRI H. MITRA Printing & Stationery Department, Govt of

India, Calcutta SHRI P. B. MUNDAS Tribeni Tissues Ltd, Calcutta SHAI M. R. G. NAIR Research, Designs & Standards Organization,

( Ministry of Railways ), Lucknow SHRI D. R. NANDI Geological Survey of India, Calcutta DR RAJESH PANT Central Pulp & Paper Research Institute,

Dehra Dun DR S. K. KAPOOR ( Alternate )

SHRI R. P. PUDUMJEE SHRI A. J. LOBO (Alternate )

SHRI B. B. Talati

Pudumji Pulp and Paper Mills Ltd, Bombay

B. G. Talati & Co, Umreth

8

BUREAU OF INDIAN STANDARDS

Headquarters: Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002 Telephones 323 0131, 323 3375, 323 9402 Fax 91 11 3234062, 91 11 3239399, 91 11 3239382

Telegrams Manaksanstha (Common to all Offices)

Central Laboratory: Telephone Plot No 20/9, Site IV, Sahibabad Industrial Area, SAHIBABAD 201010 8-77 00 32

Regional Offices:

Central Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002 *Eastern 1/14 CIT Scheme VII M, VI P Road, Maniktola, CALCUTTA 700054 Northern SCO 335-336, Sector 34-A, CHANDIGARH 160022 Southern C I T Campus, IV Cross Road, CHENNAI 600113 †Western Manakalaya, E9 Behind Marol Telephone Exchange, Andheri (East),

MUMBAI 400093

Branch Offices:

'Pushpak', Nurmohamed Shaikh Marg, Khanpur, AHMEDABAD 380001 ‡Peenya Industrial Area, 1st Stage, Bangalore - Tumkur Road,

BANGALORE 560058 Gangotri Complex, 5th Floor, Bhadbhada Road, T T Nagar, BHOPAL 462003 Plot No 62-63, Unit VI, Ganga Nagar, BHUBANESHWAR 751001 Kalaikathir Buildings, 670 Avinashi Road, COIMBATORE 641037 Plot No 43, Sector 16 A, Mathura Road, FARIDABAD 121001 Savitri Complex, 116 G T Road, GHAZIABAD 201001 53/5 Ward No 29, R G Barua Road, 5th By-lane, GUWAHATI 781003 5-8-58C, L N Gupta Marg, Nampally Station Road, HYDERABAD 500001 E-52, Chitaranjan Marg, C-Scheme, JAIPUR 302001 117/418 B, Sarvodaya Nagar, KANPUR 208005 Seth Bhawan, 2nd Floor, Behind Leela Cinema, Naval Kishore Road,

LUCKNOW 226001 Patliputra Industrial Estate, PATNA 800013 T C No 14/1421, University P O Palayam,

THIRUVANANTHAPURAM 695034 NIT Building, Second Floor, Gokulpat Market, NAGPUR 440010 Institution of Engineers (India ) Building, 1332 Shivaji Nagar, PUNE 411005

*Sates Office is at 5 Chowringhee Approach, P O Princep Street, CALCUTTA 700072

†Sales Office is at Novelty Chambers, Grant Road, MUMBAI 400007 ‡Sales Office is at 'F' Block, Unity Building, Narashimaraja Square,

BANGALORE 560002

323 76 17 337 86 62 60 38 43

235 23 15 832 92 95

550 13 48 839 49 55

55 40 21 40 36 27 21 01 41

8-28 88 01 8-71 19 96

54 11 37 20 10 83 37 29 25 21 68 76 23 89 23

26 23 05 6 21 17

52 51 71 32 36 35

27 10 85 309 65 28 222 39 71

Printed at New India Printing Press, Khurja, India