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 5691 (1970): Lacquer Cellulose Nitrate, Pigmented,Finishing, Glossy [CHD 20: Paints, Varnishes and RelatedProducts]

IS : 5691 - 1970

Indian Standard SPECIFICATION FOR

LACQUER, CELLULOSE NITRATE, PIGMENTED, FINISHING, GLOSSY

Second Reprint AUGUST 1996 (Incorporating Amendment No. 1 )

UDC 667.633.266

© 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

G r 4 February 1971

IS : 5691-1970

Indian Standard SPECIFICATION FOR

LACQUER, CELLULOSE NITRATE, PIGMENTED, FINISHING, GLOSSY

Paints and Allied Products Sectional Committee, CDC 8

Chairman SHRI W. E. NORRIS

Villa Tamarinka, Capmarti, Javea, Alicante, Spain

Vice-Chairman SHRI T. K. S. MANI

Members

Representing Addisons Paints and Chemicals Ltd, Madras

SHRI M. B. SATVANARAYANA ( Alternate to Shri T. K. S. Mani )

DR P. K. BHANDARI SHRI S. K. BOSE

SHRI K. C. SEAL ( Alternate ) SHRI K. N. CHOWDHRI

SHRI S. K MAITRA. ( Alternate ) SHRI N. GOPALKRISHNAN

Shalimar Paints Ltd, Calcutta National Test House, Calcutta

Ministry of Defence ( D G I )

Indian Aluminium Co Ltd, Calcutta SHRI A. K. CAPRIHAN ( Attentate )

SHRI ISHWAR SINGH JOINT DIRECTOR ( M & C )

The Hyderabad Allwyn Metal Works Ltd, Hyderabad Railway Board ( Ministry of Railways )

SHRI A. RAMAMURTHY ( Alternate ) SHRI G. W. KAPSE

DR S. M. SINGH ( Alternate) SHRI R. K. MARPHATIA

Central Building Research Institute ( CSIR ), Roorkee

Goodlass Nerolac Paints Ltd, Bombay SHRI N. R. KOLWALKAR. ( Alternate)

SHRI M. N. R A O SHRI B. V. DALAL ( Alternate )

SHRI R. K. ROKADE

Indian Paint Association, Calcutta

The Premier Automobiles Ltd, Bombay SHRI P. K. DESHPANDE ( Alternate )

SHRI G. S. SAVKAR SCIENTIFIC ADVISER TO THE CHIEF OF

THE NAVAL STAFF SHRI N. K. SEN

SHRI P. R. MALHAN ( Alternate) SHRI K. N. R. SHARMA SHRI A. SINHA

Directorate General of Supplies & Disposals, New Delhi Naval Headquarters

Development Commissioner, Small Scale Industries

Directorate General of Technical Development Indian Paint Research Association. Calcutta

SHRI N. B. SENGUPTA ( Alternate)

( Continued on page 2 )

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

IS : 5691-1970

( Continued from page 1 )

Members DR M. A. SIVASMABAN

Representing Regional Research Laboratory ( CSIR ), Hyderabad

SUPERINTENDING SURVEYOR OF Central Public Works Department, New Delhi WORKS (I)

SURVEYOR OF WORKS (I) ( Alternate ) SHRI Y. S. S W A M I

SHRI H . J . MISTRY ( Alternate ) SHRI D. D A S GUPTA,

Director ( C h e m )

The Alkali & Chemical Corporation of India Ltd, Calcutta

Director General, ISI ( Ex-officio Member )

Secretary SHRI S. ARAVAMUDHAN

Assistant Director ( Chem ), ISI

Panel for Paints , Varnishes, Lacquers and Ancillaries for Automobile Industry, C D C 8 : 6 : 3

Convener SHRI R. K. ROKADE

Members SHRI K. N. CHOWDHRI SHRI T. K. S. MANI SHRI R. K. MARPHATLA

SHRI S. V. NATHAN ( Alternate ) SHRI N. M. RAJU

The Premier Automobile Ltd, Bombay

Ministry of Defence ( DGI ) Addisons Paints and Chemicals Ltd, Madras Goodlass Nerolac Paints Ltd, Bombay

Hindustan Motors Ltd, Hooghly SHRI S. K. KHASNOBIS ( Alternate)

SHRI Y. S. SWAMY

SHRI C. V. TIKEKAR

The Alkali & Chemical Corporation of India Ltd, Calcutta

Tata Engineering & Locomotive Co Ltd, Jamshedpur SHRI G. RAMAMURTHY ( Alternate )

2

IS: 5691-1970

Indian Standard SPECIFICATION FOR

LACQUER, CELLULOSE NITRATE, PIGMENTED, FINISHING, GLOSSY

0. F O R E W O R D 0.1 This Indian Standard was adopted by the Indian Standards Institution on 22 June 1970, after the draft finalized by the Paints and Allied Products Sectional Committee had been approved by the Chemical Division Council. 0.2 Alignment of JSS 3038 'Specification for paint, pfu, nitrocellulose, finishing, full gloss, spraying' issued by Department of Standardization, Ministry of Defence, Government of India, has been achieved with this Indian Standard as it mostly covers the requirements prescribed in JSS 3038.

0.3 For good results, it is desired that ancillaries like primer, surfacer and stopper are obtained from the same manufacturer. The painting system comprising the pigmented lacquer as the finishing, is capable of withstanding polishing with appropriate polishing cream, imparting high gloss to the polished surface.

0.4 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, 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 requirement and the methods of sampling and test for lacquer, cellulose, pigmented, finishing, glossy. The material is used for protection and decoration of metal and steel parts of automobiles and other vehicle bodies.

*Rules for rounding off numerical values ( revised ).

3

IS : 5691-1970

2. TERMINOLOGY 2.0 For the purpose of this standard, the definitions given in 2 of I S : 101-1964*, IS :1303-1963† and the following shall apply. 2.1 Registered Sample — Sample supplied in advance by a prospective supplier and registered by the approved testing authorities after testing it to all the requirements of this standard. A complete record of its perfor-mance shall be kept in respect of all tests. 3. REQUIREMENTS 3.1 Composition — The material shall be based on cellulose nitrate, plasticizers, resins, pigments and suitable solvents with diluents in suitable proportions as to satisfy the requirements of this standard. The compositions of the pigment and the vehicle of the bulk supply shall be similar to those of the registered sample.

3.1.1 Compatibility and Thinning — When thinned with lacquer thinner conforming to IS : 5667-1970‡ or IS : 1873-1961§ in the ratio of one part of lacquer to one and a half parts by volume of lacquer thinner, the viscosity of the thinned material shall be not less than 18 seconds when measured using a flow cup as prescribed in 7.4 of I S : 101-1964* at a temperature of 30°C, and the mixed material shall be smooth and uniform, ready for spraying.

3.1.2 Toxicity — The material shall not contain any benzene and chlorinated hydrocarbon solvents when tested as prescribed in Appendix A. 3.2 Durability

3.2.1 When prepared and tested for normal outdoor exposure as prescrib-ed under B-3, a general breakdown of the film prepared from the registered sample of the material shall not occur in less than 24 months.

3.2.2 A film of the sample for registration shall be prepared and tested in an accelerated weathering apparatus for a period of 15 days as prescrib-ed under B-4 and a complete record of its performance maintained.

NOTE — As a precaution against inadvertent accidents, the outdoor exposure test (B-3 ) and the accelerated weathering test (B-4) shall be carried out in duplicate. 3.2.3 Sample from Bulk Supply — A film of the material prepared

from a representative sample from bulk supply as described in Appendix B and tested in the accelerated weathering apparatus ( B - 4 ) shall not be materially different in performance as compared with the record of the film of the registered sample. The film shall be examined daily for a period of 15 days.

*Methods of test for ready mixed paints and enamels ( second revision ). †GIossary of terms relating to paints ( revised ). ‡Specification for thinner for cellulose nitrate based paints and lacquers. §Specification for thinner, antichill for cellulose nitrate based paints, dopes and

lacquers lor aircraft. 4

IS : 5691 - 1970

3.3 The material shall also comply with the requirements given in Table 1.

TABLE 1 REQUIREMENTS FOR LACQUER, CELLULOSE NITRATE, PIGMENTED, FINISHING, GLOSSY

SL CHARACTERISTIC No.

(1) (2) i) Drying time and compa-

tibility: a) Surface dry

b) Ready for rubbing and polishing

ii) Consistency

iii) Finish†

iv) Gloss† on glass plate after 24 hours

v) Opacity

vi) Colour† on tinplate panel

vii) Scratch hardness† using a load of 1·5 kg

viii) Flexibility and adhesion† after 48 hours air-dry-ing

REQUIREMENT METHOD OF R E F TO

Appendix IS

(3)

First and second coats 15 minutes, third coat 30 minutes with no ten-dency to lift the under-lying coats

16 hours

Smooth and uniform and suitable for spraying after thinning with the approved thinner

Smooth and glossy

Min 80 after polishing

Complete hiding in three coats, the total dry film thickness being 40 to 45 microns

Close match to the specified IS colour or approved sample

No such scratches as to show the bare metal

No visible damage or de-tachment of the film

(4)

IS : 101-1964*

-

— —

—

—

—

—

TEST,

CI No. in

(5)

7.1, 7.2 and 7.3

7.4

7.5

7.7

* ™

11

15.1

16

*Method of test for ready mixed paints and enamels ( second revision ). †Test panels coated with the material only, to give dry film weight of 15 to 30 g/m2 ,

shall be used for these tests.

(Continued)

5

IS : 5691 - 1970

TABLE 1 REQUIREMENTS FOR LACQUER, CELLULOSE, PIGMENTED, FINISHING, GLOSSY — Contd

SL CHARACTERISTIC No.

(1) (2) ix) Protection against corro-

sion under condition of condensation†

x) Resistance to lubricating oil‡

a) Resistance to petrol‡

xii) Resistance to water†: a) deterioration

b)g loss

xiii) Volatile matter, percent by weight, Max

xiv) Keeping propertiea

xv) Freedom from blushing or blooming‡

xvi) Suitability for rubbing down

xvii) Self lifting

REQUIREMENT

(3) No sign of corrosion, dis-coloration and lots of adhesion

No sign of softening or permanent injury. Stain-ing, if any, shall be easily removed with polish con-forming to IS : 5480-1969‡

No sign of softening or re-moval of film on slight rubbing

No deterioration after 48 hours

Loss of gloss not more than 40 percent after 168 hours

68

Not less than one year

To pass the test

To past the test

To pass the test

METHOD OF TEST, REF TO

Appendix

(4) —

—

—

—

—

—

—

C

D

E

Cl No. in IS : 101-1964*

(5) 18

19

21

23

23 and 7.7 ( glossmeter)

26

31

—

—

—

*Methods of test for ready mixed paints and enamels ( second revision ). †Test panels with complete painting system as prescribed in B-2 shall be used for this

test. ‡Test panels coated with the material only, to give dry film weight of 15 to 30 g/m2,

shall be used for these tests. §Specification for automobile polishes, paste.

6

IS : 5691-1970

4. PACKING AND MARKING 4.1 Packing — The material shall be packed in metal containers as agreed to between the purchaser and the supplier. 4.2 Marking— Each container shall be marked with the following:

a) Name and colour of the material; b) Name of the manufacturer and trade-mark, if any; c) Volume of the material; and d) Month and year of manufacture.

4.2.1 Other details of marking shall be as agreed to between the purchaser and the supplier.

4.2.2 BIS Certification Marking

The product may also be marked with Standard Mark.

4.2.2.1 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 details of conditions under which the licence for the use of Standard Mark may be granted to manufacturers or producers may be obtained from the Bureau of Indian Standards.

4.3 The material when intended for defence purposes, shall be packed and marked in accordance with IS : 5661-1970*.

5. SAMPLING 5.1 Preparation of Test Samples

5.1.1 For Registration — The sample shall be submitted in three different containers each containing not less than 500 ml of the material.

5.1.1.1 As the testing to the requirements of this standard coven a period of more than 24 months, the supplier is advised to submit samples for registration sufficiently in advance.

5.1.2 Tender Sample — The supplier may dispense with sending a ten-der sample provided that he declares that the material for which the tender is given is of same quality as the sample previously registered in his name.

5.1.3 Bulk Supply Sample — Representative sample of the material shall be drawn as prescribed under 3 of I S : 101-1964†.

*Code of practice for packing and marking of packages of paints, varnishes, enamels and allied products.

†Methods of test for ready mixed paints and enamels ( second revision ).

7

IS : 5691 - 1970

6. TEST METHODS 6.1 Tests shall be conducted as prescribed in I S : 101-1964* and in Appendices A to E. References to the appendices and the relevant clauses of IS : 101-1964* are given in 3.1.1, 3.1.2, 3.2 and in col 4 and 5 of Table 1. 6.2 Quality of Reagents — Unless specified otherwise, pure chemicals and distilled water ( see IS : 1070-1960†) shall be employed in tests.

NOTE — ' Pure chemicals' shall mean chemicals that do not contain impurities which affect the results of analysis.

6.3 Comparison with the performance of the registered sample shall be carried out on the basis of the records maintained for the registered sample ( see 3.2.2 and 3.2.3) . 6.4 For match against Indian Standard colours, IS: 5-1961‡ shall be used.

A P P E N D I X A ( Clause 3.1.2 )

TEST FOR TOXICITY A-0. GENERAL A-0.1 Outline of the Method — The material is steam distilled and sol-vents collected. It is subjected to test for benzene and chlorinated hydro-carbons qualitatively.

A-1. APPARATUS A-1.1 Steam Distillation Apparatus A-1.2 Distilling Flask — 100 ml capacity. A-1.3 Bunsen Burner

A-2. REAGENTS A-2.1 Nitric Acid — conforming to IS : 264-1968§. A-2.2 Sulphuric Acid — conforming to I S : 266-1961¶. A-2.3 Copper Wire — 0914 to 1·219 mm in diameter.

*Methods of test for ready mixed paints and enamels ( second revision ). †Specification for water, distilled quality ( revised ) ( Since revised ). ‡Colours for ready mixed paints ( second revision ). §Specification for nitric acid (first revision ). ¶Specification for sulphuric acid ( revised ).

8

IS : 5691-1970

A-3. PROCEDURE A-3.1 Steam distill 100 ml of the material using a receiver cooled in ice. Separate the solvent layer, wash with several times its volume of distilled water, discard the washings, dry and redistill, collecting all solvents within the agreed specified boiling range, subject this to the tests prescribed in A-3.1.1 and A-3.1.2.

A-3.1.1 Test for Benzene — Mix equal volumes of nitric acid and sulphuric acid in a test-tube and cool. To 2 ml of this solution add 10 drops of the solvent and shake. Warm, if necessary and examine for the odour of nitrobenzene which is given by 5 percent benzene or larger amounts of toluene. Boil the contents for at least 30 seconds, allow to cool and add 10 ml of water. Mix the contents and examine for odour of nitro-benzene, which should be no longer present if the contents were boiled enough. Allow the tube to stand for some time. A yellow cloudy solution or flocculent precipitate changing to yellow needles is evidence of the presence of benzene. It may further be confirmed by separating the yellow needles and finding out its meeting point which should be 89° to 90°C.

In case of dispute gas chromotography may be employed to detect the presence of benzene using analytical grade benzene as standard.

A-3.1.2 Test for Chlorinated Hydrocarbons — Form a small loop in the copper wire and heat in a small Bunsen flame until it no longer colours the flame. Allow the loop to cool and then dip it into the test solution. Immediately place in the outer part of the flame and when the first lumi-nous flame disappears, examine for the green colouration due to chlorinated compounds.

A-3.2 The material shall be deemed to have passed the test if the solution when tested as prescribed in A-3.1.1 does not give off smell of nitrobenzene or forms yellow crystals and when tested as prescribed in A-3.1.2 does not impart a green colouration to the Bunsen flame.

A P P E N D I X B ( Clause 3.2 )

DETERMINATION OF DURABILITY

B-0. GENERAL B-0.1 Outline of the Method — The durability of the material is deter-mined by ascertaining actual behaviour of suitably prepared test panels in normal outdoor exposure test for a specified period and evaluating the

9

IS : 5691-1970

results of this exposure by a suitable method of rating for various charac-teristics of the lacquer film. Apart from this, the material is also evaluated by an accelerated weathering test wherein a prepared panel is subjected to controlled exposure of heat, light and water in an artificial weathering apparatus. B-1. TEST PANELS B-1.1 Test panel shall be mild steel 300 × 300 × 1.6 mm in size and free from surface imperfections. B-2. PREPARATION OF TEST PANELS B-2.1 In the painting procedure outlined under B-2.2, the air drying shall be done at the room temperature and at a relative humidity of not more than 70 percent. B-2.2 The complete painting system shall consist of the following steps:

a) Degrease the panels with suitable solvent and then dip for 5 minutes in a bath containing the following:

Parts by Weight Orthophosphoric acid (sp gr 1.7, see 54

I S : 798-1968*) Butyl alcohol ( see IS : 361-1962†) 10 Denatured spirit ( see IS : 324-1959‡ ) 10 Water 26 Remove the panels and wash with boiling water to remove all traces of bath solution and dry at 60°C for 15 minutes. Cool the panels to room temperature.

b) Apply one coat of primer conforming to §IS: ...... (under preparation). Then apply two to three coats of surfacer conforming to IS:6126-1971|| with 30 minutes interval between the coats to achieve an overall film thickness of 50 to 70 microns and air dry for 4 hours.

c) Rub down wet with emery paper No. 280, followed by No. 400 until the surface is sufficiently smooth and even to take a coat of the finishing lacquer. About 0.05 mm thickness of the film shall be left after flatting. Wash the surface with water to remove all loosely adhered dust and dry for 30 minutes.

d) Wipe with petrol damped rag. Apply one coat of the finishing by spraying to give a dry film weight of 15 to 30 g/m2 and dry for 10

*Specification for orthophosphoric acid (first revision ). †Specification for normal butyl alcohol, technical. ‡Specification for ordinary denatured spirit (revised). §Till such time an Indian Standard is published material conforming to Defence

Specification No. IND/SL/3156(c)-1954 Specification for primer for paints, P.F.U: finishing, nitrocellulose, high glass, shall be used

||Specification for nitrocellulose surfacer 10

IS : 5691 - 1970

minutes. Apply two further coats of the finishing with an interval of 10 minutes in between coats and dry for 24 hours.

e) Lightly rub down wet with emery paper No. 400 to give a smooth surface. Wash thoroughly with water and dry for 30 minutes.

f) Then, rub the film with a suitable cutting paste, wash with petro­leum hydrocarbon solvent ( see IS : 1745-1966* ) to remove dust and abrasive and finally give a polish using a soft cloth with the polishing cream conforming to I S : 5480-1969†.

B-3. NORMAL OUTDOOR EXPOSURE TEST B-3.0 Subject the sample for registration to normal outdoor exposure test in the manner described under B-3.1. B-3.1 Expose in the open the test panels, prepared in the manner pres-cribed under B-1 and B-2, in duplicate, in a position facing south at 45°. Commence the exposure not earlier than last week of January and not later than the first week of March.

B-3.1.1 Examine the condition of the exposed films at monthly intervals for gloss retention and at bimonthly intervals for the other characteristics given below:

a) Colour; b) Checking, cracking and blistering; c) Chalking; and d) Blooming and spotting.

B-3.1.2 For the above examinations, wash the right hand half of the sur-face of the two test panels by pouring water and then wiping with a soft cloth or chamois leather ( see IS : 1017-1966‡ ). Adequate time for cooling of the panels to room temperature shall be allowed prior to washing. Polish half of the left half of the panel and assess gloss and colour after polishing. Examine the same portions of the test panels at each examination. As an aid in the examination, a magnifying glass may be used, but the evaluation shall be based on an assessment with the unaided eye. At the end of the stipulated period for durability test. Examine all the three portions of the test panels. The sample shall be considered satisfactory if the material surface underneath as well as condition of the film in all the parts, the one washed periodically, the one polished periodically and the one washed only for the final examination is satisfactory by the method of evaluation described

*Specification for petroleum hydrocarbon solvent. (first revision). †Specification for automobile polish, paste. ‡Specification for chamois leather (first revision ).

11

IS: 5691 - 1970

hereunder (see B-3.2 ). Stray film failure due to extraneous causes other than climatic shall be ignored.

B-3.2 Method of Rating — The film of an unexposed test panel possess-ing high gloss shall be rated at 100, which figure shall be made up of basic values as follows:

a) Possessing high gloss after polishing b) Possessing correct colour c) Freedom from checking, cracking and blistering d) Freedom from chalking e) Freedom from blooming and spotting

20 20 35 10 15

100

NOTE — The initial rating of film may be 100 or less according to the condition of gloss and colour, the rating for freedom from checking, cracking and blistering, chalking, blooming and spotting being always maximum in the case of unexposed films.

B-3.3 Evaluation of Exposed Films — In recording the condition of the exposed films at each examination express the observed relative values of different characteristics in percentages of the basic value allotted to each characteristic under B-3.2. For arriving at an assessment, multiply the basic value for each assessment ( B-3.2 ) by the percentage awarded for the performance in the test and divide the product so obtained by 100 to obtain the percentage award for the observed value of each characteristic. Take the sum of these resulting values as the overall assessment.

B-3.3.1 The following table is intended to serve as an example for the assessment of lacquer film after exposure:

Sl Characteristic Basic value, No. percent

(I) (2) i) Possessing high gloss

after polishing ii) Possessing correct colour

iii) Freedom from checking, cracking and blistering

iv) Freedom from chalking v) Freedom from blooming

and spotting

(3) 20

20 35

10 15

Performance value, percent

(4) 100

60 20

80 50

Assessment value, percent

(5) 20

12 7

8 7.5

54.5

12

I S : 5691 - 1 9 7 0

B-3.4 Results of Exposure — Reckon the period for the general break-down of the exposed film from the date of commencement of exposure to the time when the overall assessment falls below 50 percent or when the performance value of any one characteristic falls below 25 percent of the basic value adopted for that characteristic. In the example given under B-3.3.1, although the overall assessment is 54·5 percent, yet the film is to be regarded as generally having broken down, because the perfor-mance value of checking and cracking has fallen below 25 percent of its basic value.

B-4. ACCELERATED WEATHERING TEST B-4.1 Accelerated Weathering Apparatus — An artificial weathering apparatus of the carbon arc type shall be used for uniform and controlled exposure to the effects of heat, light and water. B-4.2 Samples for registration shall be tested in duplicate in a suitable accelerated weathering apparatus (B-4.1) and samples drawn from bulk supplies shall be tested in a similar manner. The test panels shall'be prepared as described under B-2.2. The requirements of this test shall be taken to have been satisfied if the performance of the film is not materially different as compared with the record of the film of the registered sample.

A P P E N D I X C [Table 1, Item ( xv ) ]

DETERMINATION OF BLUSHING OR BLOOMING

C-1. PROCEDURE C-1.1 Spray the material at the room temperature and at a relative humidity not exceeding 70 percent on a 150 × 150 mm glass plate and allow to air-dry for one hour at the room temperature in a well ventilated chamber free from draught and dust.

C-1.2 The film shall show no tendency to blush or bloom.

A P P E N D I X D [ Table 1, Item ( xvi) ]

DETERMINATION OF SUITABILITY FOR RUBBING DOWN D-1. PROCEDURE D-1.1 Prepare a panel upto stage B-2.2 (d) air-dry for 16 hours and subject the same to rubbing as prescribed under B-2.2 (e) and (f).

13

IS : 5691 - 1970

D-1.1.1 The material shall be deemed to have passed the test if the film polishes to a bright surface.

A P P E N D I X E [ Table 1, Item ( xvii) ]

TEST FOR SELF LIFTING

E-1. SELF LIFTING E-1.1 Panel prepared according to details given in B-2 shall not lift or wrinkle when touched up with the same lacquer after a period of 4 hours, 24 hours.. 7 days and 2 months.

14

BUREAU OF INDIAN STANDARDS Headquarters: Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002 Telephones : 331 01 31

331 13 75 371 94 02

Telegram: Manaksanstha (Common to all Offices)

Regional Offices : Central: Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002

*Eastern: 1/14 CIT Scheme VII M, V.I.P. Road, Maniktola, CALCUTTA 700054 Northern : SCO 335-336, Sector 34-A, CHANDIGARH 160022 Southern : C.I.T. Campus, IV Cross Road, MADRAS 600113 †Western : Manakalaya, E9 MIDC, Marol, Andheri (East), BOMBAY 400093

Branch Offices: 'Pushpak', Nurmohamed Shaikh Marg, Khanpur, AHMADABAD 300001 ‡Peenya Industrial Area, 1st Stage, Bangalore-Tumkur Road,

BANGALORE 560058 Gangotri Complex, 5th Floor, Bhadbhada Road, T.T. Nagar, BHOPAL 462003 Plot No 21 Satyanagar, BHUBANESHWAR 751007 Kalaikathir Building, 6/48 Avanashi 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 5-8-56C L.N. Gupta Marg, Nampally Station Road, HYDERABAD 500001 R 14. Yudhister Marg, C Scheme, JAIPUR 302005 117/418 B Sarvodaya Nagar, KANPUR 208005 Seth Bhawan, 2nd Floor, Behind Leela Cinema, Naval Kishore Road,

LUCKNOW 226001 Patliputra Industrial Estate, PATNA 800013

Telephone 331 6617 335 3841 37 86 62 60 38 43

235 23 15 832 92 95

30 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 38 13 74 21 68 76 23 89 23

26 23 05 T.C. No. 14/1421, University P.O., Palayam, THIRUVANANTHAPURAM 695034 6 21 17

Inspection Offices (With Sale Point): Pushpanjali, 1st floor, 205-A, West High Court Road, Shankar Nagar Square,

NAGPUR 440010 Institution of Engineers (India) Building 1332 Shivaji Nagar,

PUNE 411005

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

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

BANGALORE 560002

52 51 71

32 36 35

27 10 85

309 65 28 222 39 71

Printed at Simco Printing Press, Delhi