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 4174 (1977): Typewriter Ribbons, Cotton [CHD 14:Printing, Inks, Stationary and Allied Products]

IS : 4174 - 1977 ( Reaffirmed 2010 )

Indian Standard SPECIFICATION FOR

TYPEWRITER RIBBONS, COTTON

( First Revision )

First Reprint JUNE 1988

UDC 681.611.064.347

© Copyright 1978

B U R E A U O F I N D I A N S T A N D A R D S MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Gr 2 July 1978

AMENDMENT NO. 3 AUGUST 2006 TO

IS 4174 : 1977 SPECIFICATION FOR TYPEWRITER RIBBONS, COTTON

(First Revision) ( First cover page ) — Insert the Hindi Title as follows:

( CHD 14 )

Reprography Unit, BIS, New Delhi, India

AMENDMENT NO. 2 APRIL 1993 TO

IS 4174 : 1977 SPECIFICATION FOR TYPEWRITER RIBBONS, COTTON

( First Revision )

( Page 4, clause 4.2 ) — Substitute the following for the existing clause:

'4.2 Cotton Fabrics — The cotton fabric shall conform to IS 4686 : 1980‡ for all the requirements except for breaking load for which the requirement shall be as given below:

Warpway Weftway

Breaking load on 5.0 cm × 20 cm 35 30 strips, kgf, Min

( Page 4, foot-note ) — Substitute the following for the existing foot-note:

'‡Specification for typewriter ribbon fabric ( first revision ).'

( Page 6, clause A-2.1, lines 11,12 and 13 ) — Substitute the following for the existing matter

'The ribbon shall satisfy the requirement of the test if the minimum number of lines that are of good intensity, distinct and easily legible are as follows:'

( CHD 014 ) Reprography Unit, BIS, New Delhi, India

AMENDMENT NO. 1 JANUARY 1986

TO

IS:4174-1977 SPECIFICATION FOR TYPEWRITER RIBBONS, COTTON

(First Revision)

(Page 4, clause 4.3) - Add the following new

accordingly.

'4.4 Finish - The edges of t h e ribbon shal l be sealed and t r e a t e d to prevent fraying.'

Reprography Unit, BIS, New Delhi, India (CDC 13)

clause a f t e r 4.3 and renumber t h e subsequent clauses

IS : 4174 - 1977

Indian Standard SPECIFICATION FOR

TYPEWRITER RIBBONS, COTTON

( First Revision )

Inks and Allied Products Sectional Committee, CDC 13 Chairman

DR M. I. MATHEWS 39-A Venkatanarayana Road

T. Members

SHRI B. L. ARUKIA

Nagar, Madras 600017 Representing

Kores ( India ) Ltd, Bombay SHRI P. N. GANDHI ( Alternate )

SHRI J. A. ASTAPUTRE SHRI R. N. RAM ( Alternate )

SHRI A. R. BASU SHRI H. MITRA (Alternate )

SHRI M. L. BHATTACHARYA

SHRI A. SEN ( Alternate ) SHRI A. BISWAS

Ministry of Defence ( DGI )

Controller of Stationery, New Delhi

Directorate of Industries (Quality Marking Scheme), Government of West Bengal, Calcutta

Bharat Carbon & Ribbon Mfg Co Ltd, New Delhi SHRI A. K. SENGUPTA ( Alternate )

SHRI M. K. CHITRE The Development Commissioner (Small Scale Industries ), New Delhi

SHRI P. SATYANARAYAN ( Alternate ) SHRI S. O. DANDEKAR Camlin Private Ltd, Bombay

SHRI M. G. DANDEKAR ( Alternate ) SHRI B. C. DUTTA Surveyor General of India, Dehra Dun

SHRI C. P. MADAN ( Alternate ) SHRI R. C. GUPTA National Archives of India, New Delhi

SHRI V. V. TALWAR ( Alternate ) SHRI N. G. MAITRA

SHRI P. K. PYNE SHRI B. N. SADWELKAR

SHRI R. SETHURAMAN

Stationery & Office Equipment Association of India, Calcutta

National Test House, Calcutta Directorate of Arts (Government of Maharashtra),

Bombay Essen & Company, Bangalore

SHRI R. VISWANATHAN ( Alternate ) SHRI B. G. THORAT Maharashtra State Bureau of Text Book Production

& Curriculum Research, Bombay ( Continued on page 2 )

© Copyright 1978 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 : 4174 - 1977

( Continued from page 1 )

Members Representing SHRI C. O. K. UMMER Chemical Testing & Analytical Research Labora­

tory ( Department of Industries & Commerce ) ( Government of Tamil Nadu ), Madras

SHRI P. N. SUNDER RAO ( Alternate ) SHRI S. VISWANATHAN Chelpark Co Ltd, Bangalore

SHRI K. V. G. KRISHNAMURTHY ( Alternate )

DR G. M. SAXENA, Director General, BIS ( Ex-officio Member) Director ( Chem )

Secretary SHRI S. K. MATHUR

Deputy Director ( Chem ), BIS

Panel for Carbon Papers and Typewriter Ribbons, CDC 13:P2

Convener SHRI A. R. BASU Controller of Stationery, New Delhi

Members SHRI H. MITRA ( Alternate to

Shri A. R. Basu ) SHRI B. L. ARUKIA Kores (India ) Ltd, Bombay

SHRI P. N. GANDHI ( Alternate ) SHRI A. BISWAS Bharat Carbon and Ribbon Mfg Co Ltd, New Delhi

SHRI A. K. SENGUPTA ( Alternate ) DR D. K. DAS

SHRI A. GHOSH ( Alternate ) SHRI DHARAM SHEEL SHRI C. Dow

National Test House, Calcutta

Indian Airlines, New Delhi Indian Duplicator Co Pvt Ltd, Calcutta

SHRI S. VENKATARAMAN ( Alternate ) SHRI A. A. MERCHANT Killick Caribonum Ltd, Bombay

SHRI N. S. SINDHWANI ( Alternate ) DR V. N. MUKHERJEE

SHRI S. K. SETHI ( Alternate ) SHRI K. L. NARAYANSA

DR C. SANDILL ( Alternate ) SHRI R. G. OWALEKAR SHRI M. L. SHARMA SHRI S. SUBBARAO

Tribeni Tissues Ltd, Calcutta

Khoday Industries Pvt Ltd, Bangalore

The Finlay Mills Ltd, Bombay Yogiraj Chemical Laboratories, Ludhiana Remington Rand of India Ltd, Calcutta

SHRI S. L. SIPAHJMALANI ( Alternate )

2

IS : 4174 - 1977

Indian Standard SPECIFICATION FOR

TYPEWRITER RIBBONS, COTTON

( 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 14 October 1977, after the draft finalized by the Inks and Allied Products Sectional Committee had been approved by the Chemical Division Council. 0.2 This standard was originally published in 1967. The Sectional Committee responsible for its preparation decided to revise it in the light of experience gained through the use of this standard since its publication. Since the scope of this standard is restricted to record ribbons made of cotton fabric only, the word 'cotton' has been added in the title. For the requirement of the basic fabric reference has been made to IS:4686-1968*. Changes have also been made in the dimensions of the ribbon to bring it in line with IS:4686-1968*. 0.3 Typewriter ribbons are generally made of cotton, silk and synthetic fibre. They are of various types depending upon their end use, such as record ribbons made of cotton fabric only. The specification for silk ribbon is under preparation separately. Copying ribbons are consumed in this country in very small quantity and therefore no standard is being prepared for them. 0.4 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, express-ing 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 the methods of sampling and test for inked record ribbons made of cotton fabric, for use on type­writer of various types.

*Specification for typewriter ribbon fabrics. †Rules for rounding off numerical values ( revised).

3

IS : 4174 - 1977

2. TERMINOLOGY 2.1 For the purpose of this standard the definitions given in IS:4395-1967* shall apply.

3. TYPES 3.1 There shall be two types of typewriter ribbons, namely:

a) Type I — Single colour, black, purple or blue; and b) Type II — Bi-colour, black and red, blue and red ??? and red.

3.1.1 Degree of Inking — Each type of typewriter ribbon shall be of three degrees of inking, namely:

a) light inking, b) medium inking, and c) heavy inking.

4. REQUIREMENTS 4.1 Description — The typewriter ribbons shall be manufactured by inking the cotton fabric evenly in a manner so as to yield clear and legible typed impressions required for the purpose. The typed impressions shall not show through the typed paper when impressions are taken on typewriting paper ( see IS: 1848-197l† ), and there shall be no evidence of filling of types. 4.2 Cotton Fabric — The cotton fabric shall conform to IS:4686-1968‡. 4.3 Dimensions — The ribbon shall be of the following dimensions:

a) Width of Ribbons— mm, unless width specified otherwise. However, the tolerance shall remain the same.

b) Length of Ribbons — 10 m or 5 m as required; tolerance on 10-m length ribbon shall be ±0.25 m, and on 5-m length ±0.15 m.

NOTE — If the ribbon is required in a length higher than 10 metres, the same may be supplied as agreed to between the purchaser and the supplier and the tolerance on the length of the ribbon shall be ±0.25 metres.

c) Thickness of Ribbons — 0.14 to 0.18 mm. 4.4 Typed Work — The typed work shall be well defined and clean and in the normal process of typing, the paper shall not get soiled with the ink of the ribbons. There shall be a gradual and not abrupt loss of distinctness of typed work when repeated at the same place.

*Glossary of terms relating to inks and allied industries. †Specification for writing and printing paper ( first revision ). ‡Specification for typewriter ribbon fabrics.

4

IS : 4174 - 1977

4.5 Durability — The ribbons shall satisfy the requirement of the test prescribed in Appendix A. 4.6 Recuperation — The ribbons shall satisfy the requirement of the recupe­ration test prescribed in Appendix B.

5. PACKING AND MARKING 5.1 Packing — Each ribbon wound on spool suitable for the machine specified and provided with reversing attachments, wherever required, shall be packed air-sealed. Twelve such containers shall be packed in cardboard box unless otherwise specified.

2 Marking — Each container and cardboard box shall be marked with the following information:

a) Name of the typewriter for which the ribbon is suitable, and type of the ribbon;

b) Degree of inking ( see 3.1.1); c) Length of the ribbon; d) Manufacturer's name and/or recognized trade-mark, if any; e) Batch number in code or otherwise to enable the lot of manufac­

ture to be traced back from records; and f) Month and year of manufacture.

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

NOTE — The use of the Standard Mark is governed by the provisions of the Bureau of Indian Standards Act, 1986 and the Rules and Regulations made there­under. The Standard Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a well defined system of inspection, testing and quality control which is devised and supervised by BIS and operated by the producer. Standard marked products are also continuously checked by BIS for conformity to that standard as a further safeguard. Details of conditions under which a licence for the use of the Standard Mark may be granted to manufacturers or producers may be obtained from the Bureau of Indian Standards.

6. SAMPLING 6.1 The method of drawing representative samples of the material from a lot, number of samples to be drawn, and the method of finding out the criteria for conformity of the material to the requirements of this specifica­tion shall be as prescribed in Appendix C.

5

IS : 4174 - 1977

A P P E N D I X A ( Clause 4.5 )

DURABILITY TEST FOR TYPEWRITER RIBBONS, COTTON

A-1. TESTING APPARATUS A-1.1 The test shall be made on any suitable machine, meant for testing carbon papers and typewriter ribbons, with freshly cleaned pica type.

NOTE — 'Prufako' manufactured by Karl Kracke, Hannover (Germany) and Haidas machines are suitable for this test. In case any of these machines are not available, the procedure outlined in A-2.1 may be followed.

A-2. PROCEDURE A-2.1 Typewriting paper ( see Sl No. XIX of IS: 1848-1971* ) shall be used for carrying out the test. A piece of about 5 cm ribbon under test shall be stuck to a piece of the paper/board using cellulose tapes (see IS : 2884-1971†). Make a slit in the centre of the paper/board approximately 8 × 30 mm so that the types directly strike on the ribbon under test. This assembly is securely stuck to the carriage of the typewriter using a cellulose tape. It should be ensured that this assembly does not shift while typing. Another sheet of typing paper ( see SI No. XIX of IS : 1848-1971* ) shall be inserted in the typewriter in the usual way and test started. Type a line consisting of letter 'g ' ten times in horizontal row; using double spacing, continue typing 100 such lines. The ribbon shall satisfy the requirement of the test if the number of lines that are of good intensity, distinct and easily legible are as follows:

Light Inking Medium Inking Heavy Inking Single c o l o u r 60 75 100

ribbon Bi-colour ribbon 40 60 —

A P P E N D I X B ( Clause 4.6 )

RECUPERATION TEST

B-1. TESTING APPARATUS B-1.1 Same as in A-1.1.

*Specification for writing and printing papers ( first revision ). †Specification for pressure sensitive adhesive cellulose tapes ( first revision ).

6

IS : 4174 - 1977

B-2. PROCEDURE B-2.1 Repeat the test given under durability test from another place on the ribbon (see A-2.1) but type 25 lines only on another similar sheet of paper. After keeping the ribbon in the same position for one hour to recoup, the same operation shall be repeated.

B-2.1.1 The ribbon shall satisfy the requirement of the test if the twenty-sixth line reasonably matches the tint of the third line in case of black ribbon and the tenth line in case of bi-colour ribbon. The first line on this test shall reasonably match the third line of the durability test in case of single colour ribbons and the tenth line in case of bi-colour ribbons.

A P P E N D I X C (Clause 6.1 )

SAMPLING OF TYPEWRITER RIBBONS, COTTON

C-1. SCALE OF SAMPLING C-1.1 Lot — In any consignment, all boxes containing typewriter ribbons of the same type, degree of inking and drawn from a single batch of manufac­ture shall be grouped together to constitute a lot.

C-1.1.1 For ascertaining the conformity of the lot to the requirements of the specification, tests shall be carried out separately for each lot. C-1.2 The number of boxes to be selected from lots of different sizes shall be in accordance with col 1 and 2 of Table 1. From each selected box, two ribbons shall be picked up at random. C-1.3 The boxes shall be selected at random from the lot. In order to ensure the randomness of selection random number tables shall be used. For guidance in random selection procedures, IS:4905-1968* may be used. In case such a table is not available, the following procedure shall be adopted:

Starting from any box, count all the boxes as 1, 2, 3 , up to r and so on, in one order, where r is equal to the integral part of N/n, N being the number of boxes in the lot and n the number of boxes to be selected (see Table 1). Every rth box thus counted shall be withdrawn till the required number of boxes is obtained. From each of the boxes selected, two ribbons shall be picked up at

random. *Methods for random sampling.

7

IS : 4174 - 1977

C-2. NUMBER OF TESTS AND CRITERIA FOR CONFORMITY C-2.1 All the ribbons selected according to C-1.3 shall be tested for cotton fabric (see 4.2), dimensions (see 4.3), typed work (see 4.4), durability ( see 4.5 ) and recuperation ( see 4.6 ). Any ribbon failing to satisfy any of these requirements shall be considered as defective.

C-2.1.1 If the number of defective ribbons is less than or equal to the corresponding number given in col 4 of Table 1, the lot shall be considered to have satisfied the requirements of the specification.

TABLE 1 SCALE OF SAMPLING AND PERMISSIBLE NUMBER OF DEFECTIVES

(Clauses C-1.2, C-1.3 and C-2.1.1 )

NUMBER OF BOXES IN THE LOT

N (1)

2 to 5 6 „ 50

51 „ 100 01 „ 500

501 and above

NUMBER OF BOXES TO BE SELECTED

n (2) 2 3 5

10 15

TOTAL NUMBER OF RIBBONS TO

BE SELECTED

(3) 4 6

10 20 30

PERMISSIBLE NUMBER OF DEFECTIVE

RIBBONS

(4) 0 0 1 1 2

8

BUREAU OF INDIAN STANDARDS

*Sales Office in Bombay is at Novalty Chambers, Grant Road, 89 65 28 Bombay 400007

†Sales Office in Calcutta is at 5 Chowringhee Approach, P. O. Princap 27 68 00 Street, Calcutta 700072

Reprography Unit, BIS, New Delhi, India

Headquarters: Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002 Telephones : 3 31 01 3 1 , 3 31 13 75 Telegrams : Manaksanstha

( Common to all Offices ) Regional Offices: Telephone *Western ; Manakalaya, E9 MIDC, Marol, Andheri ( East) , 6 32 92 95

BOMBAY 400093 †Eastern : 1/14 C I. T. Scheme VII M, V. I. P Road, 36 24 99

Maniktola, CALCUTTA 700054 Northern : SCO 445-446, Sector 35-C

CHANDIGARH 160036 Southern : C. I. T. Campus, MADRAS 600113

Branch Offices: Pushpak,' Nurmohamed Shaikh Marg, Khanpur,

AHMADABAD 380001 'F' Block, Unity Bldg, Narasimharaja Square,

BANGALORE 560002 Gangotri Complex, 5th Floor, Bhadbhada Road, T. T. Nagar,

BHOPAL 462003 Plot No. 82/83, Lewis Road, BHUBANESHWAR 751002 53/5 Ward No. 29, R. G. Barua Road,

5th Byelane, GUWAHATI 781003 5-8-56C L. N. Gupta Marg, (Nampally Station Road),

HYDERABAD 500001 R14 Yudhister Marg, C Scheme, JAIPUR 302005 117/418B Sarvodaya Nagar, KANPUR 208005

Patliputra Industrial Estate, PATNA 800013 Hantex Bldg ( 2nd Floor) , Rly Station Road,

TRIVANDRUM 695001 Inspection Office (With Sale Point ) : Institution of Engineers ( Ind ia ) Building, 1332 Shivaji Nagar, 5 24 35

PUNE 410005

2 18 43

3 16 41 41 24 42 41 25 19 41 29 16

2 63 48 , 2 63 49 22 48 05

6 27 16

5 36 27 –

22 10 83

6 34 71 6 98 32

21 68 76 21 82 92

6 23 05 52 27