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 3898 (1981): Specificaion for Zineb, Technical [FAD 1:Pesticides and Pesticides Residue Analysis]

Indian Standard

SPECIFICATION FORZfNEB,TECHNICAL

(First Revision)

First Reprint JANUARY 2000

UDC 632.951 ZINEB

IS : 3888 ·1981

REAFFIRMED

l'lq t

GrJ

~ Copyright 1981

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, ') BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Noven,ber 1981

IS : 3898 • 1981

Indian StandardSPECIFICATION FORZINEB, TECHNICAL

(First Revision)

Pest Control Sectional Committee, AFCDC 6

ChairmonDR K. D. PAHARIA

RepresentingDirectorate of Plant Protection, Quarantine '"

Storage ( Ministry of Agriculture ), FaridabadMemMrJ

DaH. L. BAMI

SHRI S. R. NENE ( Alternate)DR A. K. BHATNAOAR Hindustan Insecticides Limited, New Delhi

SHRI C. C. ABRAHAM ( Alternate)eHlE' CHEMIST Central Revenues Control Laboratory (Ministry

of Finance ), New DelhiSHaI S. KRISHNAMURTHY ( Altemat« )

CHIEF PLANT PROTECTION OFFICER Department of Apiculture, Government ofMabarashtra. Bombay

Central Forensic Science Laboratory (CentralBureau of Investigation ), New Delhi

DR. B. BANERJEE Tea Research Association, CalcuttaDR G. SATYANARAYANA ( Alternate)

DR N. K. BASU The Alkali '" Chemical Corporation of IndiaLimited, Calcutta

CHEMIST INCHAROE, INSECTICIDESTESnNO LABOIlATOllY ( Alternate )

SHRI V. G. DESHPANDE Ciba-Geiay of India Limited, BombaySHRI E. A. ALMEIDA ( Alternate)

SHJlI OM P. DHAMIJA Export Inspection Council of India, New DelhiSURI P. P. RANOA RAO (Alternate)

DR. M. S. DHATT National Malaria Eradication Programme, DelhiDIRECTOR. GENERAL, ARMED FORCES Directorate General Armed Forces Medical Services

MEDICAL SERVICES ( Ministry of Defence ), New DelhiDIRECTOR OF AORICULTURE Department of Agricul/ture, Government of Uttar

Pradesh, LucknowDEPUTY DIRECI'OR ( PLANT PRo­

TEcnON ) ( Alternate )( Continued on page 2 )

@ Copyright 1981BUREAU OF INDIAN STANDARDS

This publication is protected under the l"diD" Copyri,ht A~' l XIV of 1957 ) ,andreproduction in whole or in part by any means except with written permission of the

publishershall be deemed 10 be an infrinlement of c:opyri.ht under the said Act.

IS : 3898 - 1981

ReprtsentlngPlastic Containers Sectional Committee, MCPD 11,

lSIIndian Pharmacopoeia Committee (Ministry of

Health and Family Welfare ), New Delhi

DR KRlSHAN SINGH

SHRJ M. RAVIKANT (Alternate)StlRl G. D. GOICHALB Bombay Chemicals Private Limited, Bombay

SHaI V. V. KETKAR ( Alternate )SHRID. K. JAIN Punjab United Pesticides and Chemicals Limited,

ChandiaarhJOINT DIRECTOR OP AORICULTURE Department of Aariculture, Government of

( DEVELOPMENT '" ICP ) Karnataka, MysoreDEPUTY DIRECfOR O. AORICULTUllE

( P4--ANT PROTEcnON ) ( Alternate)DR M. O. JOTWANI Entomology Division, Indian Agricultural Research

Institute ( ICAR ). New DelhiDR R. L. KALRA Punjab Agricultural University, Ludhjaoa

DR R. P. CHAWLA ( Alternate )DR KALYAN SINGH Chander Sekhar Azad University of Agriculture &

Technology, KanpurIndian Institute of Sugarcane Research ( leAR ),

Lucknow

( Conllnued from PQg~ 1 )

Member'SHIU V. DollAlRAJ

DRUGS CONTROLLER ( INDIA)

Cyanamid India Limited, BombayDR.'S. R. BAROOAH ( Alternate)

DR A. L. MOOKERJEESHRI J. P. PARlXH ( Alternate)

DR S. C. SRIVASTAVA. ( Alternate)DR K. KRISHNAMURTHY Ministry of Agriculture ( Department of Food),

New DelhiSmu G. N. BHARDWAJ ( Alternate)

SHJU S. G. KRISHNAN Natiooal Organic Chemical Industries Limited,Bombay

DR. J. S. VERMA ( Alternate)DR V. LAKSHMINARAYANA Directorate of Plant Protection, Quarantine &.

Storage ( Ministry of Aariculture ). FaridabadSHRI V. C. BHAROAVA (A/terllQte)

Smu S. K. LUTHRA Directorate General of Technical Development,,. New Delhi

SHRI S. C. BAJAJ ( Altemate )DR J. C. MAJUMDAR BASF India Limited, New Delhi

DR B. P. CHANDRASEKHAR ( Alternate)S8lU S. K. MAJUMDAR Central Food Technological Research Institute

( CSIR ). MysoreSHRI M. MUTHU ( Alternate)

SHRI O. N. MEHROTRA Ministry of Defence ( R&D)SHRI M. O. CHATTERJEB (Alternate) .

SHRI K. S. MEHTA Bharat Pulverising Mills Private Limited. BombaySHRI S. CHA'ITERJI ( Alternate)

SHRI L. S. MJRLE Agromore Limited. BangaloreSHRI S. K. RAMAN ( Alternate)

SHIll J. M. MODI Pesticides Formulaton Association of India( S.S.I. ), Bombay

( Contlnlled onPOI. 10)

2

IS : 3898 • 1981

Metal Containers Sectional Committee, MCPD 12,lSI

Ra1lis India Limited, Bombay

Sandoz ( India ) Limited, Thane

SURI Y. A. PRADHANDR Z. J. KAPADIA ( Alternate)

SHU D. N. V. RAO Tata Chemicals Limited, Mithapur3HRI C. NEELKANTAN ( Alternate) \

REPRESENTATIVE Pesticides Association of India. New DelhiSF.CRETARY Central Insecticides Board, Directorate of Plant

Protection, Quarantine & Storage ( Ministryof Agriculture ), Faridabad

ReprestlJlingAgricultural Chemicals Division. Indian Agricul­

tural Research Institute ( ICAR), New DelhiDR N. K. Roy ( Alternate )

SHRJ K. R. NARAYANA RAO Food Corporation of India, New DelhiSMT K. K. M. BHAVNANJ ( Alternate)

SHIU I. NARSAREDDY Department of Agriculture. Government of AndhraPradesh, Hyderabad

SHRI C. DHARMA RAo (Alternate)SHRJ O. NATARAJAN Indo61 Chemicals Limited, BombayDR V. N. NIGAM Ministry of Defence ( DOl)

SHRI P. N. AOARWAL ( Alternate)SHRJ M. M. PADAI,IA Department of Agriculture, Government ofGujarat,

AhmadabadSHRt R. G. JADEJA ( Alternate)

DR S. Y. PANDIT Bayer ( India) Limited, BombaySHRI C. O. DHARNE ( Alternate)

DR P. S. PHADKESHU A. V. NATU ( Alternate)

SHlU S. M. PRADHAN

\ Continued from page' 2 )

MembersDR S. K. MUXERJEE

Excel Industries Limited, Bombay

Indian Veterinary Research Institute (leAR)~Izatnager

SHIU S. C. SRIVASTAVA ( Alternate)SHRI N. S. VENKATARAMAN Department of Aariculture, Government of TamiJ

Nadu, MadrasDR. R. V. VENICATARATNAM RegionalResearch Laboratory ( CSIR ), Hyderabad

DR NAOABUSHAN RAo ( Alternate )DR P. R. VBNICATESWARAN Union Carbide ( India) Limited, New Delhi

DR. K. N. SHRfVASTAVA ( Alternate)SHRI E. R. VICCAJEE Paper and Flexible PackagingSectional Committee,

MCPD t4.ISISHRf N. G. WAGLE Pest Control (India) Private Limited, Bombay

SHllf M. R. BAJIKAR ( Alternate)DR. B. L. WA1TAL National Institute or Communicable Diseases,

Delhi

DR R. C. GUPTA (Alternate)SHin A. C. SHROFF

SHRJ P. V. KANGO ( Alternate)DR K. S. SINOH

SHU G. C. JOSHI ( Alternate)SHRIT.PURNANANDAM,

Director ( Aari '" Food )Director General, lSI ( E:c-officio Merll~r )

SecrelarySHRI M. L. KUMAR

Deputy Director ( Aari & Food ), lSI

10

AMENDMENT NO. 1 DECEMBER 1984TO

IS I 3898-1981 SPECIFICAnON FORZINEB, TECHNICAL

( Fir.t Re"i.ioR )

( Pag, 3, clatU, 0.2, Ii", 4 ) - Substitute C IS : 6940-1982* ' for C IS :6940-1973* ' .

( Pag, 3,!oot-nol, with c * ' maTk ) - Substitute the foll lwing for th~

existing foot-note:

• -Methods of telt for pesticides and their formulatioDi (firs' "msion ).'

( Pag, 4, Table 1 ) - Substitute C IS : 6940-1982. ' for' IS : 6940-.1973. '.

( Pag,4, Table 1, foot-nou wilh C * ' mark) - Substitute the followingfor the existing foot-note:

• ·Methoda of test for pesticides and their ComulatioDl (first "o;s;,,. ).'

(Pog, 5, clause f.l) - Substitute the following for the existingclause with Note:

c 4.1 Representative samples of the material shall be drawn as prescribed inIS: 10946..1984•. '

( Pag, 5, ,law, 5.2, Ii", 2 ) - Substitute C IS : I070-1977t' for' IS :1070-1977. '.

( Pag, 5,/001-not, witla C • ' mtJrk ) - Substitute the following for theexisting foot-note:

··Methoda for sampling of technical grade peaticidea.

f8pecification Cor water Cor general laboratory use ( IMhUl,,,,isio,. ).'

( Pal' 6, ,Iawe A-3.I. second Slmln,e ) - Substitute the following forthe existing sentence:

'The temperature of the first and second absorber shan be maintained at7000 and 25 ± ~O respectively ( by immersing the aaborbers in a water­bath ) throughout the test.'

(AFCDC 6)

Printed at Hew ladle Priatin. Prete, lOlurj,,1DcI1a

Molecular Mass275·8

IS : 3898 • 1981

Indian StandardSPECIFICATION FORZINEB, TECI-{ NICAL

( First Revision)o. FO RE WO RD

0.1 This Indian Standard (First Revision) was adopted by the IndianStandards Institution on 28 July 1981, after the draft finalized by the PestControl Sectional Committee had been approved by the Agricultural andFood Products Division Council and the Chemical Division Council.

0.2 This standard was first published in 1966. It has been revised toupgrade the purity of zineb content and to incorporate additional require­ments for zinc content. Besides an opportunity has been taken to givereference to test methods prescribed in IS: 6940-J973· for the sake ofuniformity.0.3 Zineb, technical, is employed for the preparation of formulations,which are used for the control of fungus and bacterial diseases of plants.

0.4 Zineb is the accepted common name approved by the InternationalOrganization for Standardization ( ISO ) for the pesticidal chemical zincethylene-I, 2-bisdithiocarbamate. The empirical and structural formulaeand molecular mass of zineb are as given below:Empirical Formula Structural Formula

C.H.NsS,ZD

n0.5 In the preparation of this standard, due consideration has been givento the provisions of the Insecticides Act, 1968 and Rules framed thereunder.

·Methods of telts for pesticides and their fonnulations.

IS : 3898 - 1981

However, this standard is subject to the restrictions imposed under thesewherever applicable.

0.6 For the purpose of deciding whether a particular requirement of thisstandard is complied with, the final value, observed or calculated, expressingthe result of a test or analysis, shall be rounded off in accordance withIS : 2·1960*. The number of significant places retained in the rounded offvalue should be the same as that of the specified valuein this standard.

1. SCOPE

1.1 This standard prescribes the requirements and the methods of samplingand test for zineb, technical.

2. REQUIREMENTS

2.1 Deseriptloa - The material shall be in the form of light coloured powderpractically insoluble in water.

2.2 The material shall comply with the requirements specified in Table J.

TABLE I REQUIREMENTS FOR ZINEB, TECHNICAL

SLNo.

CHARACTERISTIC REQUIREMENT

( 3 )

87(I) (2)

i) Zineb content, percentby mass. Min

ii) Moisture content, percentby mass, Max

ill) Zinc content of zineb 23·3 tocontent, percent by mass 26-0

.Methods of tests for pesticides and their formuJations.tSpecification for mancozeb, technical.

B

3. PACKING AND MARKING

3.1 Packing - The material shall be packed as per requirements given inIS : 8190 l Part 1 )-1980t.

·Rules for rounding 01T numerical values ( revlsed },tRequirements for packing of pesticides: Part I Solid pesticidest first revision ).

4

IS : 3898 • I'll

3.2 Marking - The container shaD bear legibly and indelibly the followinginformation in addition to other information, as required under the Insec­ticides Act and Rules:

a) Name of the material;

b) Name of the manufacturer;

c) Date of manufacture;

d) Batch number;

e) Net mass of contents;

o Zineb content, percent ( mjm ); and

g) Minimum cautionary notice worded as in Insecticides Act and Rules.

3.2.1 Thecontainers mayalso bemarkedwiththe Standard Mark.

3.1.1The use of the StandardMark is governed by the provisions of BureauofIndianStandards Act, 1986and the Rulesand Regulations made thereunder.Thedetailsof conditions underwhich the licencefor the Standard Markmaybegranted to manufacturers orproducers maybe obtained from theBureau of IndianStandards.

4. SAMPLING

4.1 Representative samples of the material shall be drawn as prescribed in'Indian Standard methods for sampling of pesticides and their formulations'( under preparation ).

NOTE - Till such time the standard UDder preparatioD is published, the matter shallbe u agreed to between the concerned parties.

5. TESTS

5.1 Tests shall be carried out as prescribed in col 4, Sand 6 of Table 1.

5.% Quality of Realeatl- Unless specified otherwise, pure chemicals anddistilled water ( lee IS : 1070-1977· ) shall be employed in the tests.

Nan - 'Pure chemical" thall mean chemicals that do not cODtain impurities whichaffect the results of analysis.

·Speciftcatioa for water for paerallaboratory use (firn revtsion ).

s

IS : 3898 • 1981

APPENDIX A

[ Table 1, Item ( i ) ]

DETERMINATION OF ZINEB, TECHNICAL

A-G. PRINCIPLE

A-G.l Zineb is digested with sulphuric acid and the liberated carbon disul­phide is allowed to react with alcoholic potassium hydroxide, and potassiummethyl xanthogenate so produced is titrated with iodine.

A-I. REAGENTS

A-I.I Lead Acetate Solation -- 10 percent ( mlv ).

A-l.Z Sulphuric Acid -1·1 N.

A-l.3 MetbaaoUe Pota.lam Hydroxide Solatioa - 2 N, prepared by dissolv­ing 112 g of pure potassium hydroxide in one litre of anhydrous methanol.

A-l.4 Dilate Aeede Aehl- 30 percent ( 'Iv).A-IeS StaDdard IodiDeSolation - 0·1 N.

A-I.6 Starcb IDdieator Solatloa - freshly prepared.

A-I.7 Pheaolphtbaleia Indicator SoladOD - one percent ( mlv ), in 96 percentethyl alcohol.

A-2. APPARATUS

A-2.1 The apparatus shall beas shown in Fig. 1 and consists of a 200-mlftask fitted with a condenser with an outlet tube connected to two absorbersand a SOO-m1fi1ter ftask serving as a bubbler. The latter in turn is connec­ted to a water suction pump. . An alternative assembly as illustrated inFig. 2 can also be used.

A-3. PROCEDURE

A-3.1 Weigh accurately about 0·3 g of the material and transfer it into the200-ml reaction flask and connect it to the two absorbers, the first containinglead acetate solution (35 mI ) to precipitate sulphides while the other asolution of potassium hydroxide in methanol (35 ml). The tempe­rature of the second absorber lhall be maintained at 25 ± 2°C ( by immers­ing the absorber in a water-bath) throupqut the test. Apply suction to

6

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dim

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ons

inm

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met

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FIG

.1

Ass

EM

BL

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00

IS : 3898 • 1981

the system and adjust the bubbling rate to 3-4 bubbles per second in thebubbler containing distilled water. Add SO ml of sulphuric acid I-I NthrouJh an inlet tube and heat the contents of the reaction flask to reflux_Maintain reftuxing under suction for 1 hour and 4S minutes. Discontinueheating and transfer quantitatively the contents of the potassium hydroxideabsorber into a 500-ml iodine flask, washing with distilled water, takingcare not to use more than 100 ml of the same. Cool the flask and neutra­lize with 30 percent acetic acid solution using phenolphthalein solution asthe indicator, Add starch indicator solution and titrate immediatelyagainst 0·1 N standard iodine solution till the colour changes.

A-4. CALCULATION

VxNx13-79A-4.1 Zineb content, percent by mass = M

where,V :.= volume, in ml, of standard iodine solution used;

N = normality of standard iodine solution; andM == ID2SS, in I, of the material taken for the test.

9

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