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 1682 (1973): Specification for Cuprous Oxide, Technical(Fungicidal Grade) [FAD 1: Pesticides and PesticidesResidue Analysis]

IS : 1682 - 1973

Indian Standard

SPECIFICATION FOR CUPROUS OXIDE, TECHNICAL

(FUNGICIDAL GRADE)

( First Revision )

Pest Control Sectional Committee, AFCDC 6

Chairman

Da S. N. BANERJEE

Members

SHRI M. L. ADVANI

Representing

Directorate of Plant Protection, Quarantine & Storage ( Ministry of Agriculture ), Faridabad

Tata Fison Industries Limited, Bombay $HRI H. R. RAO (Alternate)

DR P. N. AUARWAL Ministry of Defence ( R & D ) SHRI SHUMSHER S~NQH ( Alternate )

DR H. L. BAYI Central Forensic Science Laboratory, Central Bureau of Investigation, New Delhi

DR N. K. BASU The ~l~~~tt~ Chemical Corporation of India Ltd, a

DR T. GUEA ( Alternate) SRRI R. C. BRATTACHARYA Directorate General of Technical Development,

New Delhi DR K. D. SHARMA ( Alternate)

MAJ-GEN M. S. BOPARAI Directorate General of Armed Forces Medical Services ( Ministry of Defence), New Delhi

SHRI H. S. CHACHORIA Deptrjment of Agriculture, Government of -1 __~ n Manarasntra, roona

SHRI P. CHAWLA National Organic Chemical Industries Limited, Bombay

SHRL BHUPINDER SIN~H ( Alternate I ) SHRI H. J. DADACHANJI ( Alfernate II )

DR M. S. DHATT National Malaria Eradication Programme, Delhi DR C. L. DHAWAN Union Carbide India Ltd, New Delhi

SHRI R. K. DUTTA ( Alternafe j

( Continued on page 2 )

, I @ Copyright 1973

INDIAN STANDARDS INSTITUTION

I 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

I publisher shall be deemed to be an infringement of copyright under the said Aet.

-.

IS : 1682 - 1973

( Continued from page 1)

Members Representing

DIRECTOR or AURICULTTJRE Department of Agriculture, Government of Uttar Pradesh, Lucknow

DEPUTY DIRECTOR ( PLANT PROTECTION ) ( Alternate )

DRWS CONTROLLER Indian Pharmacopoeia Committee ( Ministry of Health & Family Planning ), New Delhi

SERI M. RAVIKANT ( Alternate) SERI G. D. GOKHALE Bombay Chemicals Private Ltd, Bombay

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

SHRI HARJINDER SINQH ( Alternate ) SHRI T. GEORQE JOHN Hindustan Insecticides Ltd, New Delhi

DR S. N. NAQ ( Alternate ) DR G. S. KALKAT Department of Agriculture, Government of Punjab,

Chandigarh SHRI MANUAL SIN~H KAPOOR ( Alternate )

Da LALLAN RAI Cyanamid India Limited, Bombay DR A. L. MOOKERJEE ( Alternate )

SHRI S. K. MAJUMDAR Central Food Technological Research Institute ( CSIR ), Mysore

SHRI M. MUTFLU ( Alternate) SHRI K. S. MEETA

SHRI S. CHATTERJI ( Alternate) DR P. R. MEHTA l3.7 E v hllTamT.raa Ym .J. AX. I*I”ILY*“.3Y

&RI D. N. NAKRATE DR S. Y. PANDIT ( Alternate )

SHRI S. L. PATEL

Bharat Pulverising Mills Private Ltd, Bombay

Pesticides Association of India, New Delhi Anr;r~~ltm.rnl f?hemical. TX.,;.;nn Tndinn Aa&ml. “blat......“- -.._ . . . . _...” -....,‘.,.., *.._.-.. ‘.b”..“-

tural Research Institute ( ICAR ), New Delhi Bayer ( India ) Ltd, Bombay

American Spring & Pressing Works Private Ltd, Bombay

SHRI L. M. PATEL ( Alternate ) PLANT PROTECTION OFFWER

DR S. PRADHAN

DR RATTAN LAL ( Alternate )

Department of Agriculture, Government of Mysore, Bangalore

Entomology Division, Indian Agricultural Research Institute ( ICAR ), New Delhi

DR VINOD R. SHAH SI~RI L. R. SHARMA

Pest Control ( India ) Pvt Ltd, Bombay Shaw Wallace & Company Limited, Calcutta .

SHRI N. R. JAYASUNDAR ( Alternate) DR K. S. SIN~H Indian Veterinary Research Institute ( ICAR ),

Izatnagar SITRI S. C. SRIVASTAVA ( Alternate )

&RI L. R. SUD Ministry of Defence ( DGI ) DR B. L. WATTAL National Institute of Communicable Diseases, Delhi DR HARI BHAQWAN, Director General, IS1 ( Ex-oflcio Member )

Director ( Agri & Food)

Sccretaa

SHRI E. N. SUNDAR Deputy Director ( Agri & Food ), IS1

( Continued on page 11 )

2

1s : 1682 - 1973

Indian Standard SPECIFICATION FOR

CUPROUS OXIDE, TECHNICAL (FUNGICIDAL GRADE)

(First Revision)

0. FOREWORD

0.1 This Indian Standard ( First Revision ). was adopted by the Indian Standards Institution on 18 January 1973, after the draft finalized by the Pest Control Sectional Committee had been approved by the Agricultural and Food Products Division Council and the Chemical Division Council.

0.2 This standard was first published in 1960. In order to bring the standard up-to-date, it has been decided to issue the first revision of the standard after taking into consideration the views of the industry and consumers. This revised version does not include limits for arsenic and lead, as they were considered not necessary.

0.3 Cuprous oxide, technical, is extensively used for agricultural and horticultural purposes in fungicidal formulations.

0.4 This standard is one of a series of Indian Standards on pesticides and their formulations. Other standards published so far in the series are given on pages 13 and 14.

0.5 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 accord- ance 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 test for cuprous oxide, technical, used in the formulation of fungicides for agricul- tural and horticultural purposes.

*Rules for rounding off numerical values ( revised).

3

IS : 1682 - 1973

2. REQUIREMENTS

2.1 Description- The material shall be essentially cuprous oxide. It shall be in the form of a dry powder, or in such a form that it is possible

* to easily powder it by crushing under a palette knife, without a grinding action. It shall have a yellow-orange to orange-red colour and shall be free from adulterants and foreign matter.

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

TABLE 1 REQUIREMENTS FOR CUPROUS OXIDE, TECHNICAL ( FUNGICIDAL GRADE )

( Clauses 2.2 and 5. I )

i$. CEARACTERISTW REQUIREMENT METEOD OF TEST

~_~--_~---_-~

Ref to ReftoClof Appendix IS : 6940*

(1) (2) (3) (4) (5)

i) Moisture content, percent by mass, 1.0 3.1 Max

ii) Total copper, percent by mass, Min

80.0 A

iii) Total soluble alkali as ( NasCO,) 0.50 B -

percent by mass, Max

iv) Total soluble chloride ( as NaCl ), 0.50 c -

percent by mass, Max

‘Methods of test for pesticides and their formulations ( under Preparation )_

3. PACKING AND MARKING

3.1 Packing - The material shall be packed in polyethylene-lined hessian ba 0.062 mm 9

s or wooden boxes with a polyethylene liner of not less than 250 gauge ) thickness.

3.2 Marking - The following information shall be marked legibly and indelibly on each container:

a) Name of the material;

b) *Total copper content; c) Name of the manufacturer;

d) Batch number; e) Net mass of contents; and

4

IS : 1682 - 1973

f) The minimum cautionary notice, worded as under:

‘KEEP FAR AWAY FROM FOODSTUFFS, ANIMAL FEEDS AND SEEDS AND THEIR EMPTY CONTAINERS. DO NOT USE THIS CONTAINER FOR ANY OTHER ALTERNA- TIVE PURPOSE EXCEPT FOR STORAGE OF PESTICIDES’.

3.2.1 When hessian bags are used for packing the material, the pictorial marking for ’ USE NO HOOKS ’ and ‘ DO NOT PUNCTURE ’ as contained in, IS : 1286-1967* shall be stencilled on,the bags.

3.2.2 The containers may also be marked with the IS1 Certification Mark.

NOTE -The use of the IS1 Certification Mark is governed by the provisions of the Indian Standards Institution (Certification Marks) Act and the Rules and Regula- tions made thereunder. The IS1 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 IS1 and operated by the producer. IS1 marked products are also continuously checked by IS1 for conformity to that standard as a further safeguard. Details of conditions under which a licence for the use of the IS1 Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution.

4. SAMPLING

4.1 The method of drawing the representative samples of the material and criteria for conformity shall be as prescribed in Indian Standard Methods of sampling for pesticides and their formulations ( under @r+~ration ).

5. TESTS

5.1 Tests shall be carried out as prescribed in the appropriate appendices given in co1 4 of Table 1.

5.2 Quality of Reagents - Unless specified otherwise, pure chemicals and distilled water ( see IS : 1070-19607 ) shall be employed in tests.

NOTE - 6 Pure chemicals ’ shall mean chemicals that do not contain impurities which affect the results of analysis.

*Pictorial markings for handling of goods in general (Jirst revision ). tspecification for water,, distilled quality ( revised).

5

1s : 1682 - 1873

APPENDIX A

[ Tuble 1, Item ( ii ) ]

DETERMINATION OF TOTAL COPPER

A-l. PRINCIPLE OF THE METHOD

A-l.1 Copper is determined by titration of the iodine liberated on addi- tion of potassium iodide to the weakly acidic solution. Difficulties with absorption of iodine on the cuprous iodide precipitate are avoided by the addition of potassium or ammonium thiocyanate.

A-2. REAGENTS

A-2.1 Concentrated Nitric Acid - sp gr 1.42 ( conforming to IS : 264- 1968*).

A-2.2 Urea

A-2.3 Sodium Carbonate - anhydrous (conforming to IS : 296-1965t).

A-2.4 Dilute Acetic Acid - 10 percent (v/v).

A-2.5 Potassium Iodide Solution’- 30 percent ( m/v).

A-2.6 Standard Sodium Thiosulphate Selntion - O-1 N, standardized against pure copper or against 0.1 N standard potassium dichromate solution ( see A-5 ).

A-2.7 Starch Indicator Solution - One percent ( m/v), freshly prepared.

A-2.8 Potassium or Ammollium Thiocyanate

A-3. PROCEDURE

A-3.1 Weigh accurately about 0.4 g of the material into a 250-ml Erlenmeyer flask. Add 1 to 2 ml of concentrated nitric acid and about 20 ml of water, and allow the material to dissolve by shaking. Boil the contents for’3 to 5 minutes, remove the flask from the flame, add 1 g of urea and boil again for about 5 minutes. Cool and add sodium carbonate in small quantities until a faint permanent precipitate or blue colour appears. Add dilute acetic acid dropwise until the blue colour ( or the precipitate ) disappears. Add 2 to 3 ml of potassium iodide solution and

*Specification for nitric acid ( revised). $Specification for sodium carbonate, anhydrous (revised).

6

. titrate the brown solution with the standard sodium thiosdphate solution to a pale-straw colour. Add about 2 ml of starch indicator solution and about 1.5 to 2’5 g of potassium or ammonium thiocyanate, and continue titration until the blue colour is just discharged.

A-4. CALCULATION

A-4.2 Total copper content, percent = O-635 7 VF by mass M[

where v = volume in ml of the standard sodium thiosulphate solution

required for the test with the material ( due A-3.1 ),

F = factor of the standard sodiup thiosulphate solution (see A-5.1.2.1 and A-5.2.3.1), and

M = mass in g of the material taken for the test ( Jee A-3.1 ).

A-5. STANDARDIZATION OF SODIUM TIIIdSULPHATE SOLUTION

A-5.0 General - For standardization of sodium thiosulphate solution, two methods, namely titration against pure copper of not less than 99.9 percent purity and against standard potassium dichromate solution, have been specified. Experience has shown that the standardization against pure copper gives accurate results but due to difficulty of availability of pure copper, the alternate method has also been specified. Hence, either of these two methods may be used for the standardization of sodium thiosulphate solution, but the method employed should be stated while expressing the results of a test.

A-5.1 Standardization Against Pure Copper of Not Less than 999 Percent Purity

A-5.1.1 Weigh accurately 0.2 g of pure copper in a 500-ml Erlenmeyer flask. Dissolve the copper by adding 5 ml of concentrated nitric acid and, after 1 minute, add 5 ml of water. Follow the procedure as described in A-3.1. .

A-5.1.2 Calculation

A-5.1.2.1 Factor F of 0.1 N sodium thiosulphate solution = o_~3~~v

where M = mass in g of the pure copper taken for the test, and

v = volume in ml of the standard sodium thiosulphate solution required for the test with the material.

7

IS : 1682 - 1973

A-5.2 Standardiiaiion Against Standard Potassium Dichromate Solution

A-5.2.1 Reagents A-5.2.1.1 Standard fiotassium dichromate solution - 0.1 N.

~-5.2.1.2 Concentrated hydrochloric acid - conforming to IS : 265-1962*.

A-5.2.1.3 Potassium iodide

A-5.2.1.4 Starch indicator solution - one percent ( m/v), freshly prepared.

A-5.2.2 Calculation

A-5.2.2.1 Pipette out accurately 25 ml of the standard potassium dichromate solution into a 600-ml Erlenmeyer flask. Add to this about 125 ml of water, 10 ml of concentrated hydrochloric acid and 4 to 5 g of potassium iodide. Stopper the Erlenmeyer flask and keep it in dark for about 15 minutes to complete the reaction. After 15’minutes, titrate this mixture against the standard sodium thiosulphate solution using about 2 ml of starch indicator solution towards the end.

A-5.2.3 Calculation

VN A-5.2.3.1 Factor F of 0.1 N sodium thiosulphate solution = v

where

V = volume in ml of the standard potassium dichromate solution taken for the test ( which in this case is equal to 25 ml ),

Jv = normality of the standard potassium dichromate solution, and

v = volume in ml of the 0’1 N sodium thiosulphate solution required for titration of the volume of the standard potassium dichromate solution taken for the test.

APPENDIX B a

[ Tuble 1, -Item ( iii ) ] .

DETERMINATION OF TOTAL SOLUBLE ALKALI

B-I. REAGENTS

B-l.1 Standard Sulphuric Acid - 0.02 N.

B-1.2 Methyl Red Indicator - aqueous, 0.1 percent (m/v).

*Specification for hydrochloric acid (revised ).

8

IS : 1682 - 1973

Bd2. PROCEPURE

B-2.1 Weigh accurately about 20 g of the material into a 250-ml conical Aask. Add about 100 ml of water, mix and warm slightly. Cool and filter into another conical flask. Wash the material several times with water and collect the washings in the same conical flask as the filtrate. Titrate these total washings ( filtrate) with the standard sulphuric acid using methyl red as the indicator.

NOTE - Preserve this solution for the determination of total soluble chloride (see C-2.1 ).

B-2.2 Carry out a blank determination on 100 ml of water plus the quan- tity of water approximately used for washings using methyl red as the indicator.

B-3. CALCULATION

B-3.1 Total soluble aklali ( as Na&Os), percent = 5.3 ( I’ - v) N by mass M

where

V = volume in ml of the standard sulphuric acid required for the test ( see B-2.1 ),

v = voIume in ml of the standard sulphuric acid required for the blank determination ( see B-2.2),

N= normality of the standard sulphuric acid, and M = mass in g of the material taken for the test (see B-2.1 ) .

APPENDIX C

[ T&de 1, Item ( iv ) ]

DETERMINATION OF TOTAL SOLUBLE CHLORIDE

C-l. REAGENTS

C-l.1 Calcium Carbonate

C-1.2 Potassium Chromate Indicator Solution - 5 percent ( m/v ), aqueous.

C-l.3 Standard Silver Nitrate Solution - 0.1 N.

9

I&:1682-1973

C-2. PROCEDURE

C-2.1 To the neutralized solution contained in the conical flask ( see B-2.1 ), add a small quantity of calcium carbonate and mix. Add a few drops of potassium chromate indicator solution and titrate with the standard silver nitrate solution.

C-2.2 Carry out a blank determination using the same volume of water as the solution with potassium chromate as the indicator.

C-3. CALCULATION

C-3.1 Total soluble chloride ( as NaCl), L 5.85 ( I’ - v) fl percent by mass M

where

V= volume in ml of the standard silver nitrate solution required for the test ( see C-2.1),

v = volume in ml of the standard silver nitrate required for the blank determination ( see C-2.2 ),

N = normality of the standard silver nitrate solution, and M= mass in g of the material taken for the test

( see C-2.1 ).

10

IS : 1682 - 1973

( Conhued from page 2 )

Pesticides Subcommittee, AFCDC 6 : 1

Convener

DR P. R. MEETA

Members

SHRI M. L. ADVANI SHRI H. R. RAO (Alternate)

DR N. S. A~RAWAL

Represenling

Pesticides Association of India, New Delhi

Tata Fison Industries Limited, Bombay

Ministry of Agriculture ( Department of Agriculture )

SHRI 0. P. GAE~Q ( Alternate) SHRI E. A. ALMEIDA Ciba of India Ltd, Bombay

DR T. PARTHASARATHI ( Alternate ) ASSISTANT A Q R I o u L T TJ R A L Pesticides Testing Laboratory, Coimbatore

CHEMIST DR H. L. BAMI Central Forensic Science Laboratory, Central

Bureau of Investigation, New Delhi DR N. K. BASU The Alkali & Chemical Corporation of India

Ltd. Calcutta DR A. P. DUTTA ( Alternate)

SHRI R. C. BHATTAOHARYA Directorate General of Technical Development, New Delhi

DR K. D. SHARMA (Alternate ) SHRI P. CHAWLA National Organic Chemical Industries Limited,

Bombay SHRI BHUPINDER SIN~H (Alternate I) SHRI H. T. DADACHANJI f Alternate II )

Punjab Agricultural University, Ludhiana National Malaria Eradication Programme, Delhi

DR S. L. C&PRA \

DR M. S. DHATT SHRI G. D. GOKHALE

SHRI V. V. KETKAB ( Alternate ) SHRI T. GEORQE JOHN

DR S. N. NAG ( Altcrnale) DR K. B. L. MATHUR SHRI K. S. MEETA

SERI S. CHATTERJI ( Alternate ) SHRI L. S.MIRLE DR S.K.MUKERJEE

Bombay Chemicals Private Ltd, Bombay

Hindustan Insecticides Ltd, New Delhi

Chemistry Department, University of Delhi, Delhi Bharat Pulverising Mills Private Ltd, Bombay

Agromore Limited, Bangalore Agricultural Chemicals Division, Jndian Agricul-

tural Research Institute ( ICAR ), New Delhi DR R. S. DEWAN (Alternate)

DR N.B.PATEL DR N. V. RAO I Alternate 1

SHRI S. L. PEBTI ' ' PLANT PROTECTION ADVISER TO THE GOVERNMENTOB~NDIA SHRIV.LAKBHMINARAYANA ( Alternate )

SHRIV.S.RAYANATHAN

Tata Chemicals Limited, Mithapur

Ministry of Defence ( R & D) Directorate of Plant Protection, Quarantine &

Storage ( Ministry of Agriculture ). Faridabad

Central Revenues Control Laboratory ( Ministry of Finance ), New Delhi

SHRI P. P. MATHEW (Alternate )

( Continued on page 12)

IS:1682 -1973

( Continued from page 11 )

Members

DR R. ROEHA SHRI G. BALASUBRAMANIAN

Representing

Hoechst Pharmaceuticals Limited, Bombay

( Alternate ) SHRI S. S. SHAH New Chemi-Mineral Mills Private Ltd, Bombay

SHRI N. A. SHAHBHAQ ( Alternate ) DR V~NOD R. SEAH

DR H. N. MOHAN RAO Pest Control ( Iqdia ) Pvt Ltd, Bombay

(Alternate ) SHRI R. D. SEROvr Excel Industries Limited, Bombay

SHRI K. K. CEHAYA ( Alternate) SHRI P. P. SINQHAL Pesticides India, Udaipur

SHRI MOIXOMED YUSUB ( Alternate ) SHRI L. R. SIJD DR B. L. WATTAL

Ministry of Defence ( DGI ) NatipconLt Institute of Communicable Diseases,

SHRI V. N. BHATNA~AR ( Alternate )

12

fNbfAN STANDARDS

ON

PESTICIDES ( TECHNICAL GRADE )

IS :

560-1969

563-1973

634-1965

882-1956

1051-1957

10521962

1055-1957

1251-1973

1306-1958

1309-1958

1311-1966

1312-1967

1486.1969

1488-1969

1827-1961

1832-1973

1833-1961

2125-1962

2126-1973

2127-1962

2128.1973

2353-1963

2354-1963

2355-1963

2570-1963

2863-1964

3898-1966

3900-1966

3902-1966

3904-1966

4320-1967

4321-1967

4344-1967

4345-1967

4451-1967

4929-1968

BHC, technical and refined (second revision )

DDT, technical ( second revision )

Ethylene dichloride-carbon tetrachloride mixture ( 3 : 1 v/v ) ( revisrd ) Gamma-BHC ( lindane )

Pyrethrum extracts

Dieldrin, technical ( revised )

Nicotine sulphate solution

Zinc phosphide, technical (first revision )

Aldrin, technical

Endrin, technical

Ethylene dibromide (jr& revision )

Methyl bromide (jrst revision )

Copper oxychloride, technical (first revision )

2, 4-D sodium, technical (first revision )

Liquid amine salts of 2, 4-D

Malathion, technical (Jirst revision )

Diazinon, technical

Phenyl mercury salicylate, technical

Phenyl mercury acetate, technical (J;rsr revision )

Stabilized methoxy ethyl mercury chloride concentrate

Parathion ethyl, technical (Jirst revision )

Phenyl mercury chloride, technical

Ethyl mercury chloride, technical

Stabilized ethoxy ethyl mercury chloride concentrate

Methyl parathion, technical

Chlordane, technical

Zineb, technical

Ziram, technical

Dimethoate, technical

Thiometon concentrates

Thiram, technical

2,4-D, technical

Endosulfan, technical

Binapacryl, technical

Toxaphene, technical

Dichlorvos, technical

.

4958-1968 Phosphamidon, technical

5278-1969 Dicofol, technical

5280-1969 Fenitrothion, technical

5526.1969 Coumafuryl, technical

5549-1970 Warfarin bait concentrates

5551-1970 Warfarin, sodium., technical

5552-1970 Warfarin, technical

6432-1972 Heptachlor, technical