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 7168 (1973): Warfarin Sodium Salt Water Soluble Powders[FAD 1: Pesticides and Pesticides Residue Analysis]

IS I 7168 - 1973

Indian StandardSPECIFICATION FOR

WARFARIN SODIUM SALT WATERSOLUBLE POWDERS

Pest Control Sectional Committee, AFCDC 6

ChairmanDIG S. N. BANERJEE

MembersD K P. N. AGARWAL

D R N. P. RAO ( Alternate )DK H. L. BAMI

DK N. K. BASU

D R T. GUHA ( Altcrnale )MA J- GEN M. S. BOPARAI

SHRI H. S. CEACHORIA

S KRI P. CRAWLA

RepresentingDirectorate of Plant Protection, Quarantine &

Storage ( Ministry of Agriculture ), Faridabad

Ministry of Defence (R & D )

Central Forensic Science Laboratory, CentralBureau of Investigation, New Delhi

The Alkali & Chemical Corporation of India Ltd,Calcutta

Directorate General of Armed Forces MedicalServices, Ministry of Defence, New Delhi

Department of Agriculture, Government ofMaharashtra, Poona

National Organic Chemical Industries Limited,Bombay

S~sr BHUPINDER SINGH ( Alternate I )SHR~ H. .I. DADACHANJI ( Alternate II )

SHRI A. K. WAS

D R K. D. SHARMA ( Alternate)Da M. S. D H A T T

DR C. L. DHAWANSHRI R. K. DUTTA (Alternate )

~~IR~OTOROB.-\G~~~~LT~R~

D EPUTY D IRECTOR ( PL A N TPROTECTION ) ( Alternate )

lkuos CONTROLLER

Directorate General of Technical Development,Yew Delhi

National Malaria Eradication Programme, DelhiUnion Carbide India Ltd, New Delhi

Department of Agriculture, Government of UttarPradesh, Lucknow

Indian Pharmacopoeia Committee ( Ministry ofHealth & Family Planning ), New Delhi

)S H R I M. RAVIKANT ( .AlternoteSRRI G. D. GOKHALE Bombay Chemicals Private Limited, Bombay

SERI V. V. KETKAR (Alternate )SHRI D. C. JAIN Food Corporation of India, New Delhi

SHRI HARJINDER SINGE ( Alternate )( Coutinued on page 2 )

@ Copyright 1974INDIAN STANDARDS INSTITUTION

This publicarlon IS protected under the Zndion Copyright Act (XIV of 1957 ) andreproduction in whole or in part by any means except with written permission of thepublisher shall be deemed to be an infringement of copyright under the said Act.

IS : 7168 - 1973

( Continued Jkom page 1 )

MembersSHRI T. GEORGE JO H N

DR S. N. N.&G ( Alternate )11x1 G. S. K A L K A T

RepresentingHindustan Insecticides Ltd, New Delhi

Department of Agriculture, Government of Punjab,Chandigarh

Swnr MANGAL SINGH K A P O O R

DR L,i !%?~! Cyanamid India Limited, BombayDR A. L. MOO~~RJEE ( Alternate)

SHRI S. K. MAJUX~DA~ Central Food Technological Research Institute( CSIR), Mysore

SHRI M. MUTIIU ( Alternate )SHRI P. RAMACHANDRA MA R A R Department of Agriculture, Government of Tamil

Nadu, MadrasSHRI K. S. MENTA Bharat Pulverising Mills Private Limited, Bombay

SHRI S. CHATTXRJI ( Alternate )DR P. R. MEHTA Pesticides Association of India, New DelhiD R S. K. MUKERJEE Agricultural Chemicals Division, Indian Agricultural

Research Institute ( ICAR), New DelhiSRRI D. N. NARIIATE Bayer ( India ) Ltd, Bombay

DR S. Y. PANDIT ( Alternate )SHRI S. L. PATEL American Spring & Pressing Works Private Ltd,

BombaySHRI L. M. PATEL (Alternate)

PLANT PROTECTION OFFICER Department of Agriculture, Government of Mysore,Bangalore

SHRI Y. A. PRADRAN Tata Fison Industries Limited, BombayD R Z. J. KAPADIA ( Alternate )

DR H. N. MOHAN RA O Pest Control ( India ) Pvt Ltd, BombaySRRI MOHAN S. RAO ( Alternate )

SHRI L. R. SHARMA Shaw Wallace & Company Limited; CalcuttaSHRI.N. R. JAYASUNDAR (Alternate)

DR K. S. SINQH Indian Veterinary Research Institute ( ICAR ),Izatnagar

SRRI S, C. SRIVASTAVA (Alternate)SRRI L. R. SUD Ministry of Defence ( DGI )DR B. L. WATTAL National Institute of Communicable Diseases, DelhiD R H ARI BRAGWAN, Director General, IS1 ( Ex-ogicio Member )

Director ( Agri & Food )Secretary

SHRI E. N. SUNDARDeputy Director ( Agri & Food ), ISI

Pesticides Subcommittee, AFCDC 6 : 1

ConvenerD R P. R. MEHTA Pesticides Association of India, New Delhi

Mem hersSHRI E. A. AL~IEIDA Ciba of India Ltd, Bombay

Da T. PARTHASARATHI (Alternate)( Continued on page 11 )

2

IS 8 7168-1973

Indian StandardSPECIFICATION FOR

WARFARIN SODIUM SALT WATERSOLUBLE POWDERS

0 . F O R E W O R D

0.1 This Indian Standard was adopted by the Indian Standards Institutionon 18 December 1973, after the draft finalized by the Pest ControlSectional Committee had been approved by the Agricultural and FoodProducts Division Council and the Chemical Division Council.

0.2 Warfarin sodium salt water soluble powders are used as baits for thecontrol of rodent pests in homes, fields and warehouses.

0.3 This standard is one of a series of Indian Standards on pest controlproducts. Other standards in this series are given on page 12.

0.4 For the purpose of deciding whether a particular requirement of thisstandard is complied with, the final value, observed or calculated,expressing the result of a test or analysis, shall be rounded off in accord-ance with IS: 2-1960”. The number of significant places retained in therounded off value should be the same as that of the specified value in thisstandard.

1 . S C O P E

1.1 This standard prescribes the requirements and the methods of test forwarfarin sodium salt water soluble powders.

2. REQUIREMENTS

2.1 Description-The material shall consist of a homogeneous mixtureof warfarin sodium, technical; sodium benzoate; tetrasodium ethylenediamine tetra-acetate; and sugar. It shall be in the form of uniformlyblended free-flowing powder and free from extraneous matter which maylimit its suitability for baiting rodents or impair its effectiveness.

2.1.1 Warfarin, sodium, technical used in the formulations of thepowders shall conform to IS : 5551-19707.

*Rules for rounding off numerical values ( revised ).tspecification for warfarin sodium, technical.

3

IS : 7168 - 1973

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

TABLE 1 REQ.UIREMENTS FOR WARFARIN SODIUM SALT-WATER-SOLUBLE POWDERS

CHARACTERISTICS LNo.

(1)i)

ii)

iii)

iv)

v)

vi)

vii)

(2)Warfarin sodium ( technical ),

percent by mass

T e t T a s o d i u m ethylened i a m i n e tetra-acetate,percent by mass

Sodium benzoate, percentby mass

Matter insoluble in water,percent by mass, Max

Moisture, percent by mass,MaX

Sieving requirement materialpassing through 150-micronI~.S~ieve~, percent by mass,

Sucrose. content

REOUIREMENT

(3)

Nominal value asdeclared on thecontainer withthe appropriateto lerance o fpercent contentof the nominalvalue ( see 2.2.1)

3-o to 3.3

3.0 to 3.3

0-l

1.0

95

To make up therest of the mass

METHODS OF TEST

- -- - - - _Ref to Ref to Clause

Appendix of IS : 6940-1973*

(4) (5)

A -

B -

C -

D -

E -

- 12.1

F -

*Methods of test for pesticides and their formulations.*BS Sieve 100 and 150, ASTM test Sieve 100 and 140, and Tyler test Sieve 100 and

150 have apertures within limits specified for 150-micron IS Sieve.

2.2.1 The appropriate tolerances to be applied shall depend upon thedeclared percent nominal value of warfarin sodium, technical (seeTable I )and they shall be as given below:

Nominal Value, Percent Tolerance Limits, Percent

up to 10 + 10- 5 of the nominal value

Above 10 and up to 50 f 5 of the nominal value

Above 50

4

+5- 3 of the nominal value

13:7168-1973

3. PACKING AND MARKING

3.1 The material shall be packed in clean and dry airtight contair.ersmade of galvanized steel sheet, tinplate, mild steel glass or plastic asagreed between the purchaser and the manufacturer.

3.2 The containers shall be securely closed, sealed airtight after fillingthem with the material and shall bear legibly and indelibly the followinginformation in addition to the provisions as given under the rules of theInsecticides Act:

a>b)C>4e>f-1$9

3.2.1Mark.

Name of the material;Name of the manufacturer;Date of manufacture;Batch number;Net mass of the contents;The word ‘ POISON’ in distinct, bold capital letters in red; andThe minimum cautionary notice worded as under:‘KEEP THE MATERIAL AND THE BAITS CONTAININGT H E M A T E R I A L A W A Y F R O M C H I L D R E N , D O M E S T I CA N I M A L S , F O O D S T U F F S A N D E M P T Y F O O D S T U F FC O N T A I N E R S . D O N O T U S E T H E S E C O N T A I N E R SF O R S T O R A G E O F F O O D S T U F F S . W E A R R U B B E RG L O V E S T O D I S P E N S E T H E B A I T S . I N C A S E O FPOISONING CALL A PHYSICIAN. SPECIFIC ANTIDOTEF O R W A R F A R I N P O I S O N I N G I S V I T A M I N K1. B L O O DTRANSFUSION MAY BE NECESSARY.’

The containers may also be marked with the IS1 Certification

NOTE - The use of the IS1 Certification Mark is governed by the provisions of theIndian Standards Institution ( Certification Marks ) Act and the Rules and Regulationsmade thereunder. The IS1 Mark on products covered by an Indian Standard conveysthe assurance that they have been produced to comply with the requirements of thatstandard under a well-defined system of inspection, testing and qualiry control whichis devised and supervised by ISI and operated by the producer. ISI marked productsare also continuously checked by ISI for conformity to that standard as a furthersafeguard. Details of conditions under which a licence for the use of the IS1 Certilica-tion Mark may be granted to manufacturers or processors, may be obtained from theIndian Standards Institution.

4. SAMPLING

4.1 Representative samples of the material shall be drawn as prescribedin Indian Standard method of sampling of pesticides and theirformulations ( under preparation ).

NOTE -Until the standard under preparation is published, the matter shall besubject to agreement between the concerned parties.

5

IS t 7168 - 1973

5. TESTS

5.1 Tests shall be carried out as prescribed in the appropriate appendicesgiven in co1 and 5 of Table 1.

5.2 Quality of Reagents -Unless specified otherwise, pure chemicalsand distilled water (see IS : 1070-1960* ) shall be employed in tests.

NOTE - ‘ Pure chemicals ’ shall mean chemicals that do not contain impuritieswhich affect the results of analysis.

A P P E N D I X A

[ Table 1, Item (i) ]

DETERMlNATION OF WARFARIN SODIUMSALT CONTENT

A-l. APPARATUS

A-l.1 Spectrophotometer - Beckmann model DU, or equivalentinstrument with 1 cm quartz cells.

A-2 . REAGENT

A-2.1 Reference Solution - Weigh accurately 129 g of tetrasodiumethylene diamine tetra-acetate, 1’29 g of sodium benzoate, and 40.3 gof sucrose. Transfer to a 1-litre volumetric flask and make up to themark with distilled water. Dilute a 5-ml aliquot to 100 ml with 0’1 Nsodium hydroxide solution so that thepH of the final solution lies between10 and 11.

A - 3 . P R O C E D U R E

A-3.1 Weigh accurately about 43 g of the sample into a I-litre volumetricflask, dissolve in distilled water, and make up to the mark. Dilute a5 ml aliquot to 100 ml with sodium hydroxide solution so .that the @H ofthe final solution lies between 10 and 11. Pipette a sufficient amount(about 3 ml) of the final solution into a l-cm quartz cell and with thespectrophotometer set at a maximum sensitivity determine its absorbanceat 308 nm against the reference solution.

*Specification for water, distilled quality ( revised).

6

IS : 7168 -1973

A-4. CALCULATION

A-4.1 Warfarin sodium salt content,percent by mass

__ E x 330’3 x 100 x 1000 x 100-1’42 X 10 000 X 1000 x 5 x m

E x 46.52=--

m

where

E = absorbance of the final solution at 308 nm, andm = mass in g of the material taken for test.

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

DETERMINATION OF TETRASODIUM ETHYLENE DIAMINETETRA-ACETATE CONTENT

B-l. APPARATUS

B-l.1 Spectrophotometer - Beckmann model DU, or equivalentinstrument with 1 cm quartz cells.

B-2. REAGENTS

B-2.1 Standard Phosphate Buffer Solution - Disodium hydrogenphosphate (0.2 M), the @H of which has been adjusted to 11’0 withsodium hydroxide solution.

B-2.2 Standard Stock Solution-Dissolve 4.0 g of tetrasodium ethy-lene diamine tetra-acetate in distilled water and make up to 700 ml.

B-2.2.1 Standard Working Diluted Solution -Transfer 0*25-, 0*50-, O-75-,l-O-, l-5-, 2*0-, and 3’0-ml aliquots of the standard stock solution to sevenlOO-ml volumetric flasks and dilute to 95 ml in each flask with thephosphate buffer solution. Titrate with 0.25 percent copper sulphatesolution to the first permanent turbidity and add 2 drops in excess.Make up to 100 ml with the phosphate buffer solution and centrifugeuntil clear.

B - 3 . P R O C E D U R E

B-3.1 Preparation of Standard Curve - Determine the absorbance cfthe standard working dilutions at 340 nm by means of the spectrophoto-meter, using the phosphate buffer solution as reference. Plot theobserved absorbances against percentage contents (m/v) of tetra sodiumethylene diamine tetra acetate in dilutions.

7

IS 8 7168 - 1973

B-3.2 Analysis of Sample-Dissolve 4.50 g of the sample in distilledwater and make up to 100 ml. Transfer a IO-ml aliquot to a loo-mlvolumetric flask and add 85 ml of the phosphate buffer solution, titratewith 0.25 percent copper sulphate solution to the first permanentturbidity, and add 2 drops in excess. Make up to 100 ml with thephosphate buffer solution and centrifuge until clear. Determine theabsorbance of the final solution at 340 nm by means of the spectrophoto-meter, using the phosphate buffer solution as reference. Calculate thepercentage content of tetrasodium ethylene diamine tetra-acetate bycomparison with the standard curve.

A P P E N D I X C

[ Table 1, Item ( iii ) ]

DETERMINATION OF SODIUM BENZOATE CONTENT

Cdl. P R O C E D U R E

C-l.1 Weigh accurately about 2 g of the sample into a 500-ml flask fortitration. Add 75 ml of ether, 20 ml of distilled water, and 5 drops (ormore if necessary) of methyl orange indicator and titrate with 0’5 Nhydrochloric acid, mixing intimately the water and ether layers byvigorous stirring or shaking, until a permanent orange colour is producedin the aqueous layer. Carry out a blank determination on a solutioncontaining 0.06 g of sodium salt of warfarin, 0’60 g of tetrasodiumethylene diamine tetra-acetate, and 18.7 g sucrose in 75 ml of ether and20 ml of distilled water.

C-2 . CALCULATION

C-2.1 Sodium benzoate content,percent by weight

e ( a - b ) x 7.025m

where

a = volume in ml of 0.5 N hydrochloric acid used for the sample,b = volume in ml of O-5 N hydrochloric acid used for the blank,

andm - m a s s i n g .

8

IS : 7168 - 1973

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

DETERMINATION OF MATTER INSOLUBLE IN WATER

D-l. PROCEDURE

D-l.1 Weigh accurately about 5 g of the sample into a 250-ml beaker,add 50 ml of distilled water and heat to 3O”C, while stirring. Filter thesolution through a dry, tared Gooch crucible and wash twice with 100 mlportions of distilled water at approximately 30°C. Dry to constant massin an oven at 1 lO”C, cool and weigh.

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

DETERMINATION OF MOISTURE CONTENT

E-l. PROCEDURE

E-l.1 Weigh accurately about 2 g of the sample into a. dry tared dish(nickel, platinum or aluminium) and dry for 2 hours under atmosphericpressure at 100 to 102”C, then cool in a desiccator and weigh. Dry againfor 1 hour, or until the change in mass is not greater than 2 mg.the loss in mass as moisture content.

Report

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

SUCROSE CONTENT

F-l. APPARATUS

F-l.1 Polarimeter -graduated in one-tenths of a degree.

9

IS t 7168 - 1973

F-2. PROCEDURE

F-2.1 Weigh accurately about 28 g of the sample into a 100 ml volumetricflask, dissolve in distilled water, and make up to the mark at 25°C.Determine the angular rotation of this solution at 20°C by means of thepolarimeter.

F-3. CALCULATION

F-3.1 Sucrose content, percentby weight

151.5 a-bm

where

a = angular rotation of the solution at 25”C,b = length of the polarimeter tube (dm), and

m = mass in g.

IS : 7168 - 1973

( Continued from page 2 )

Members RepresentingASYISTANT AQRICULTURAL Pesticides Testing Laboratory, Coimbatore

CHEMISTD R H. L. BAMI Central Forensic Science Laboratory, Central Burean

of Investigation, New DelhiDR N. K. BASU The Alkali & Chemical Corporation of (India )

Limited, CalcuttaDR A. P. DUTTA ( Alternate )

SHEI K. K. CHRAYA Excel Industries Limited, BombaySHRI P. V. KAN~O ( Alternate)

54~x1 P. CIL~WLA National Organic Chemical Industries Limited,Bombay

SHRI BHUPINDER SINGH ( $lternate I )SHRI H. J. DADACHANJI ( Alternate II )

SRRI A. K. DA S Directorate General of Technical Development,New Delhi

D R K. D. SHARMA (Alternate)D R M. S. DH A T T National Malaria Eradication Programme, DelhiSHIX G. D. GOKHALE Bombay Chemicals Private Ltd, Bombay

Snnr V. V. KETKAR (Alternate)SRRI K. S. MEHTA Bharat Pulverising Mills Private L.imited, Bombay

SHRI S. CHATTERJI ( Alternate )DR S. K. MUKERJEE Agricultural Chemicals Division, Indian Agricultural

Research Institute ( ICAR ), New DelhiDR R. S. DEWAN (Alternate )

DR S. N. NAG Hindustan Insecticides Limited, New DelhiSHRI A. N. NATARAJAN ( Alternate)

SHRI N. B. PATEL Tata Chemicals Limited, MithapurSHRI N. V. RAO ( Alternate)

SHRI S. L. PERTI Ministry of Defence (R & D )P LANT P ROTECTION A DVISER TO Directorate of Plant Protection, Quarantine &

THE GO VERNMENT OF INDIASHRI V. L AKSRMINARAYANA

Storage ( Ministry of Agriculture ), Faridabad

( Alternate )SERI Y. A. PRADHAN

&RI M. L. SI~AH (Alternate)Tata Fison Industries Limited, Bombay

DR V. S. RAMANATHAN Central Revenues Control Laboratory ( Ministry of

SHRI P. P. MATHEW (Alternate)Finance ), New Delhi

DR H. N. MOHAN RA O Pest Control ( India ) Private Ltd, BombaySHRI MOHAN S. RAO (Alternate )

D R K. K. SAXENA Indofil Chemicals Ltd, BombaySHRI S. S. SEIAH New Chemi-Industries Private Ltd, Bombay

SARI N. A. SHANBHAQ (Alternate)Snug P. P. SINGHAL Pesticides India, Udaipur

SHRI MOHOMED YUSUP ( Alternate ‘,DR B. L. WATTAL National Institute of Communicable Diseases, Delhi

SHXI V. N. BHATNAQAR (Alternate)

11

ZNDIAN S T A N D A R D S

ON

PESTICIDES ( TECHNICAL GRADE )

IS:560-1969563-1973634-1965882-1956

1051-19571052-19621055-19571251-19731306-19581309-1958131 l-19361312-19671486-19691488-19691682-19731827-19611832-19611833-19612125-19622126-19732127-19622128-19732353-19632354-19632355-19632570-19632863-19643898-19663900-I 9663902-19663904-19664320-19674321-19674344-19674345-19674451-19674929.19684958-19685278-l 9695280-19605526-19395549-19705551-19705552-19706432-1972

BHC, technical and refined ( second revision )DDT, technical ( second revision )Ethylene dichloride carbon tetrachloride mixture ( 3 : 1 u/u ) ( revised )gamma-13HC ( lindane )Pyrethrum extractsDieldrin, technical ( revised )Nicotine sulphate solutionZinc phosphide, technical (Jir~t revision )Aldrin, technicalEndrin, technicalEthylene dibromide (first revision )Methyl bromide (first revision )Copper oxvchloride, technical (first revision )2, 4-D sodium, technical ( Jir~t revision )Cuprous oxide, technical ( fungicidal grade ) (first r&ion )Liquid amine salts of 2, 4-DMalathion, technicalDiazinon, technicalPhenyl mercury salicylate, technicalPhenyl mercury acetate, technical (j&t revision )Stabilized methoxy ethyl mercury chloride concentrateParathion ethyl, technical (jrst revision )Phenyl mercury chloride, technicalEthyl mercury chloride, technicalStabilized ethoxy ethyl mercury chloride concentrateMethyl parathion, technicalChlordane, technicalZineb, technicalZiram, technicalDimethoate, technicalThiometon concentratesThiram, technical2,4-D technicalEndosulfan, technicalBinapacryl, technical‘Toxaphene, technicalDichlorvos, technicalPhosphamrdon, technicalDicofol, technicalFenitrothion, technicalCoumafuryl, technicalWarfarin bait concentratesWarfarin, sodium, technicalWarfarin, technicalHeptachlor, technical

AMENDMENT NO. 1 SEPTEMBER 1976T O

IS : 7168-1973 SPECIFICATION FOR WARFARINSODIUM SALT WATER SOLUBLE POWDERS

A l t e r a t i o n

( Page 4, clause 2.2.1 ) -Substitute the following for the existingclause:

‘2.2.1 Warfarin Sodium, Content - LVhen determined by the methodprescribed in Appendix A, the observed warfarin sodium, content,percent (by mass) of any of the samples shall not differ from thedeclared nominal value by more than the tolerance limits indicatedbelow:

Nominal -ValuePercent

Tolerance Limit

Upto

10 and below 50

+ 101- 51f 5

tpercent of thenominal value

50 and above +5- 3 J

2.2.1.1 The actual value of warfarin sodium, content shall becalculated to the second decimal place and then rounded off to thefirst decimal p!ace before applying the tolerances as stipulated in 2.2.1.’

(AFCDCG) ‘- Reprography Unit, BIS, New Delhi, India

AMENDMENT NO. 2 MAY 1994TO

IS 7168 : 1973 SPECIFICATION FOR WARFARINSODIUM SALT WATER SOLUBLE POWDERS

(Page 5, clause 4.1 ) - Substitute the following for the existing:

‘When freshly manufactured material in bulk quantity is offered for inspection,representative samples of the material shall be drawn and tested as prescribed inIS 10627 : 1983 within 90 days of its manufacture. When the material is offeredfor inspection after 90 days of its manufacture, sampling shall be done asprescribed in IS 10627 : 1983. However, the criteria for conformity of thematerial when tested, shall be the limits of tolerances, as applicable over thedeclared nominal value and given under clause 2.2.1 of the standard.’

Reprography Unit, BIS, New Delhi, India