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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.

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“Invent a New India Using Knowledge”

है”ह”ह

IS 11008 (1984): Methabenzthiazuron Water DispersiblePowder Concentrates [FAD 1: Pesticides and PesticidesResidue Analysis]

IS: 11008· 1984

Indian StandardSPECIFICATION FOR

METHABENZTHIAZURON WATERDISPERSIBJ-JE POWDER CONCENrrRA"fES

I N D I A N S T It. N D A It D SIN S 'I' I l' II T I () NMANAK llHA'li\.N, q B~l{Al}lJR ~IIAli ZAl'AR MAHG

NhW 1)ELI n t 10002

Gr:}

IS : 11008 • 1984

Indian StandardSPECIFICATION FOR

METHABENZTHIAZURON WATERDISPERSIBLE POWDER CONCENTRATES

Pest Control Sectional Committee, AFCD(~ 6

Chairman

DR K. D. PAllARrA

Representing

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

of

Na t ioria 1 Organic Ch{'nlic~l Industrir-s Limited,BOlubay

Chander Srkhar Azad University of Agriculture& Technology, Kanpur

National I nstiuue of o. cupat ional Health ( ICl\1R ),AllluadaLad

MembersDR P. K. AGGAltWAl.. IDMA Laboratories, Chandigarh

DR S. R. IYF:NOA R ( Alternate )DR H. L. BAMl

DR S. K. KASHYAP

Pesticides Residue Analysis Sectional Committee,AF1)C 5G, lSI

Du B. BANEU..JEl!; Tea Research Association, JorhatDIt G. SA'J'YAN A H.A \' ANA ( Alternate I )SHIH S. C. DAS ( Alternate II )

Srm: N. S. BJJUnE Shriram Test House, DelhiSHIt! R. K. BANER,JEH ( Alternate)

CUJEl!" PLAN'l' I'no-rxcmox Department of Agriculture,O}4'FICE~ Maharashtra, Bombay

CUEMIHT INCHAltuE, INSEc'l'(-CIDES "rESTING LABORA'l'OltY ( Alternate)

DR M. S. DH'A'l'T National Malaria Eradication Programmc, DelhiSunI V. DOH,\IHA.T Plastic Containers Sectional Cornmittee , MCPD 11,

lSISaRI G. D. GOKlT ATJE Bombay Chemicals Private Limited, Bombay

SHltI V. V. KETK,\lt ( Alternate )SHRI N. L. KALHA National Institute of Communicable Diseases, Delhi

SaRI G. C. JOSHI ( Alternate)DIt R. L. KAld~A Punjab Agricultural University, Ludlriana

DR R. P. CHAWLA ( Al/ernal,)Iln KA1IY1\N SINOH

DR S. K. C;UPTA ( Alternate )SHIH S. G. KHTSllN.AN

DIt J. S. VEH1\t ,\ ( Alternate )SUB.) J. K. KHOS1,A Metal Containers Sectional Co m m ittce, MCPD 12,

lSISHRt A. N. HHATTAClIAHYY \ ( Alternate)

( Continued on ptlgtf 2 )

@ Copyr'ght 1984-INDIAN S'l'ANDARDS INSTITUTION

This oublieation is protected under the Indian Copyraght .4&1 (XIV of 1951) andreproduction in whole or in part by any means except with written permission of thepublisher thalJ be deemed to be an infringement of copyright under the said Act.

IS : 11008 - 1984

( Continuedfrom !Jngt 1

J/embrrJ

DR s. LAK8HM:\~ANRe/lrt.unting

Paper and Flexible Packaging Sectional Committee( !vICIlI) 14 ), lSI

DIt J. C. MAJIJMDAH HASP India Limited, BombayDn B. P. CluANDa A~Jl:KJIAIt. ( Alternate)

SHRI S. K. rvtAJUMU<\U. Central Food Tochnolog ica l Research Institute( CSIR ), Mysore

SHIU ~1. ?vI lJTJI v ( Alternate )SHHl K. S. MEI1TA Bharat Pulverising Mills Private Limited, Bombay

SJIHI S. CIfATTF;/lJEE (Alternate)SHRI L. S. M[B,Lt~ Agromore Limited, Bangalore

SBHl S. K. R,\l\IAN ( Alternate)SIIRI J. M. MOLH Pesticides Formulators Association of India ( S.S.1. ),

BombayDn S. R. B,\HOOAH ( Alternate )

DIt S. K. MU1{J~H.J1~.E Agricultural Chenlicals Division, Indian AgriculturalResoarc h Institute ( icxn ), New Delhi

DR N. K. Roy ( Alternate)SlIRI K. RAJE~DHANN,\lR Central Tnsecticides Cell, Directorate of Plant

Protection, Quarantine & Storage (!\1inistry ofAgriculture), Far idabad

Ministry of Defence ( nor )Department of Agriculture, Government of Gujarat,

Ahmadabad

Du R. C. C;('p'rA ( Alternate I )SHU,l S. K. C;JlOSH ( Alternate I I )

SHRI P. V. NARAYANAN Indian Institute of Packaging, BombaySHIU K. B. GUP'l'A ( Alternate)

DR V. N. NlnAM

SUBI M. M. P.'DALIA

Department of Agriculture, Government of AndhraPradesh, llyderabad

Directorate General of Technical Development,New Delhi

Central Insecticide Laboratory. Directorate ofPlant Protection, Quarantine & Storage( Ministry of Agriculture ), Faridabad

SARI V. C. BIIAIHL\VA ( Alternate I )DEPU1.'Y DIRll:OTOn ( CJ(ll:MIC.\T~ )

( Alternate I I )REPRE8EN'rA'r I v E

Dit 1(. D. SHARMA

SHRI R. o. JADE,l A ( Alternate )SHUI A. R. PANJCKf':U, Hindustan Insecticides Limited, New Delhi

DR S. N. DE811MlTKJ-( ( Alternate )SHIll Y. A. PRADIIAN Rallis India Limited, Ilornbay

SIIRI M. L. SH.i\JI ( Alternate )DR R. L. RA,JAK

SlfRI S. C. BA.TA.] ( Alternate )Du x. N. SHRIVAS'I'.\VA Pesticides Associatioll of India, New Dolhi

Du J. C. MA.JliMDAll ( ..Lltema!« )DR K. N. SHRIVASTAVA Shaw Wallace & Co Limited, Calcutta

SUIt! R. N. ROYCHOWDHURY ( Alternate)SHItI A. C. SHROFF Excel Industries Limited, Bombay

SHRI P. V. KANno ( Alternate)n« K. SJ\'A!iANKAIlAN Union Carbide ( India) Linlited, l"ew Delhi

-Dn. U. V. SINOH ( Alternate)

( Continued on page 10 )

2

AMENor·1ENT NO. 1 JUNE 1988

TO15:11008-1984 SPECIFICATION FOR METHABENZTHIAZURON

WATER 01 SPERSIBlE POWDER COOCENTRATES

(Page 4, Table 2) - Add the following Note atthe end of the table:

'Note - The material shall not be subjected toaccelerated storage treatment if it has crossed halfof its shelf life as ascertained fram its date ofmanufacture and date of expiry declared on thecontainer. '

(AfCDC &)

Reprography Unit, 01S, New Uelhi, India

AMENDMENT NO. 2 JULY 1994TO

IS 11008: 1984 SPECIFICATION FORMETHABENZTHIAZURON WATER DISPERSIBLE

POWDER CONCENTRATES

(Page 4, Table 1 ):

a) 51 No. (ii), col 2}- Delete the words 'after accelerated storage'.

h) SI No. (iii), col 2

( Page 6, 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 thernarerial when tested, shall be the limits of tolerances, as applicable over thedeclared nominal value and given under clause 2.3.1 oftbe standard.'

(FAD 1)Reprography Unit, BIS,NewDelhi, IDdia

IS : 11008 - 1984

Indian StandardSPECIFICATION FOR

METHABENZTHIAZURON WATERDISPERSIBLE POWDER CONCENTRATES

o. t~ 0 R E 'A7 (J R D

0.1 This Indian Standard was adopted by the Indian StandardsI nstitution on 31 August 1984, 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 Methabenzthiazuron water dispersible powders are used for generalweed control in wheat crop.

U.3 Methabenzthiazuron water dispersible powder formulations aregenerally manufactured to contain 70 percent ( mlm ) of methabenzrhia­zuron content.

0.4 In the preparation of this standard, due consideration has beengiven to the provisions of the Insecticides Act, 1968 and the Rules framedthereunder. However, this standard is subject to the restrictions imposedunder these, wherever applicable.

0.5 For the purpose of deciding whether a particular requirement of thisstandard i~ complied with, the final value, observed or calculated,expressing the result of a test or analysis, shall be rounded off inaccordance with IS : 2-1960*. The number of significant places retainedin the rounded off value should be the same as that of the specifiedvalue in this standard.

1. SCOPE

1.1 This standard prescribes the requirements and the methods ofsampling and test for methabenzthiazuron water dispersible powderconcentrates.

-Rules for rounding ofTnumerical values ( revised).

3

( S : 11008 • I984

2. REQ,UIREMENTS

2.1 Description -.~ The material shall be in the form of a finehomogeneous powder together with filler(s) and adjuvantfs) and shall bewhite to off-white in colour and shall wet readily on mixing with water,providing a suspension suitable for use as a spray. The material shallbe free from visible extraneous matter and hard aggregates.

2.2 Methabenzthiazuron, technical employed in the manufacture of thismaterial shall conform to IS : 11007..1984*.

2.3 The material shall also comply with the requirements given inTable 1.

TABLE 1 REQUIREMENTS FOR METHABENZTHIAZURON WATERDISPERSIBI..E POWDER CONCENTRATES

( Clauses 2.3 and 5.1 )

Sr..No.

C u vu ,\CTI~HlSTIC ~1E'f1I0D OE' ' rJ~S'l\ RRB' TO,--_._--~------~

Appendix in Cl No. ofthis Standard IS: 6940­

1982-

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

i) Methabenz rhiazuron coru «nt , Nosniual value as Apercent by mass declared on the

coni ainer ( see2.3.1 )

ii) Sieving requirement, material 97 1r.:passing through 75-m icronIS Sievct, after acceleratedstorage, percent by mass,Min

iii) Suspcnsihilit y, after accelcra- 70 11.2ted storage, percent by mass,Min

iv) Acidity ( as H 2S04 ), percent 0'5 ] 1.3.2by mass, A/ax

or

Alkalinity ( as NaOl-I ), 0'3 11.3.3percent by mass, Max

• Met hods of test for pesticides and their formulations (first reuision ).tS" IS : 460 ( Part 1 )-1978 Specification for test sieves: Part 1 WIre doth t est sieve

( second revisIon).

*Specification for methabenzthiazuron, technical.

4

IS : 11088 • 1984

2.3.1 Methabenethiaruron Content - When deter mined by the methodprescribed in Appendix A of IS : 11007-1984··, the observed methabenz­thiazuron content, percent (llZ/11l), of any of the samples shall notdiffer frorn the norninal value by more than the percent toleranceapplied to the declared nominal value as given below:

Tolerance Limit, Percent

lJp to 9

Above 9 arid below 50

50 and above

+ 105

± 5+ 5

3

IIrof the nominalI value

J2.3.1.1 'I'he actual value of the methabenzthiazuron content in the

formulation shall be calculated to t he second decimal place and thenrounded off to first decimal place before applying the tolerances asgiven in 2.3.1.

2.3.1.2 The average methabenzthiazuron content of all the samplestaken shall not be less than the declared nominal value.

3. PACKING AND MARKING

3.1 Packing - The material shall be packed in clean and drytrilaminated pouches made of 50-60 g maplitho paper/( 0·009 mrn )aluminium foil and 150 gauge polyethylene. These laminated pouchesshall then be further packed with polyethylene lined containers made ofmild steel or tin plate.

Retail pack up to r>oo g shall be packed in a polyethylene bag ofnot less than 0·062 mrn thickness, its mouth heat-sealed and then packedin cardboard carton individuaIly ( see IS : 6604-1972t).

The containers shall also comply with general requirements asstipulated in 2 of IS : 81 so ( Part 1 )-1980:.

3.3 Marking - The containers shall bear legibly and the followinginformation and any other additional information as is necessary underthe Insecticides Art and the Rules:

a) Name of the material:

b) N,lIne of manufacturer:

c) Date of manufacture:

*Sp('cification for met habenz.thiazuron, technical.tCode of packaging of solid pr-st icicles ( up to 500 g ).+RequiremeJlts for packing uf pesticides: Part 1 Solid pesticides (first reoisien ).

5

IS : 11008 - 1984

e) Hatch number;

f) Nominal methabcnzthiazuron conu-nt , percent ( mjm ); and

g) 'The rninirnum cautionary notice as wordcd in the Insecticides Actand Rules.

3.3.1 The containers 111ay also be marked wiih the lSI C:erlification?vIark.

NOTr~ - The use of the lSI Cert ificat inn Mark is governed by thcj-rovi ... ions of theIndian Standard! Institution (Certification Mark) Act, and the }{u les and Regu­lations made thereunder. The lSI Mark on products covered by an Indian Standardconveys the assurance that they have been produced t o cornply with the require­ments of that standard under a well-defined svst ern uf inspection. testing and qualitycontrol which is devised and supervised by lSI and operated by the producer. lSImarked products are also continuously checked by lSI for conformity to thatstandard as a further safeguard. Details of corid it ions under which a licence for theuse of the lSI Certification Mark may be granted to manufact urers Or !)roccssors,may be obtained from the Indian Standards Institution.

4. SAMPLING

4.1 Representative samples of the material shall be drawn as prescribedin IS: 10627-1983*.

5. TESTS

5.1 Tests shall be carried out by the methods as referred to in col 4 and5 of 1"able 1.

5.2 Q,uality of Reagents - Unless specified otherwise, pure chemicalsand distilled water ( see IS : l070-1977t ) shall be employed in tests.

NOTE - ' Pure chemicals' shall mean chemicals that do not contain impuritieswhich affect the results of analaysis.

APPENDIX A

[ Table 1, Item (i) ]

DETERMINATION OF METHABENZTHIAZURON CONTENT

A-O. METHODS

A-O.l Two methods namely, UV-Spectrophotometric method andalkaline hydrolysis method for the detcr minat ion of me.thabenzthia~uron

have been prescribed. However, UV-Spectrophotometrlc method will bethe referee method in case of dispute.

• Methods for sampling of pesticidal formulations.tSpecification for water for general laboratory use i second ,,,vision).

6

IS : 11008 • 1984

A-I. UV SPECTROPHOTOMETRIC METHOD - Same as givenin A-2 in IS: 11007-1984* .

A-2. ALKA.LINE HYDROLYSIS METHOD

A-2..1 Principle - The procedure is based on the alkaline hydrolysis ofmethabenzthiazuron to form volatile methylamine which is collected anddetermined quantitatively hy titrating with standard acid.

A-2.2 Apparatus .- An assembly of the apparatus is illustrated inFig. I. Minor modifications in the illustrative assembly with regardto joints might be made. However, it should be ensured that all jointsare leak-proof.

A-2.3 Reagents

A-2.3.1 Potassium Hydroxide Solution >« 1·0 N solution In diethyleneglycol and distilled water in ratio 1: 1. Dissolve 66 K of potassiumhydroxide in 500 m l of distilled water and make up to one litre withdiethylene glycol.

A-2.3.2 Boric Acid Solution - Dissolve 20 g of boric acid in distilledwater and dilute to one litre. Heat at 70°C, swirl and cool to roomtemperature, Add 10 mJ of 0·1 percent bromocresol green indicatorand neutralize to a green end point with 0·1 N hydrochloric acid.

A-7.3.3 Standard Hydrochloric Acid Solution - 0-1 N, standardized withsodium carbonate previously dried at 260 to 270°C for 30 minutes.

A-2.4 Procedure

A-2.4.1 Introduce, into the kettle, a quantity of sample equivalent toabout 0·4 g of methabenzrhiazuron, accurately weighed. By means ofgraduated cylinder, add :)0 ml of the potassium hydroxide solution tothe kettle and add a few glass beads to ensure srnooth ebullition. Applysilicone grea~e (0 (he joint and connect the kettle and condenser using aclamp, Before start of boiling ensure that the joints are secured againstleakages. Check for leakages during the experiment with pH paper.Methylamine is alkaline in nature and as such its leakage can be easilydetected vv i t h /JH paper 7 to 8·5 range. By means of a graduatedcylinder add to the receiver 1:)0 ml of the boric acid solution. Clampthe nitrogen inlet tube securely to the glas!\ inlet tube on the flask andstart the nitrogen flow so as to get slow and uniform bubbing in thereceiver containing boric acid. Apply sufficient heat to the kettle so

.Specification for mothabenzt h iazuron, technical.

7

IS : 11008 - 1984

ELECTRIC HEATING MANTL .220 WATTS, RHEOSTAT- CO NT riOt L £ 0

N~

!NLET

I,IIII

300

r------- 150 -

18/7 BALL- SOCKET../

19mm 00 VIGREAUXCOLUMN WRAPPED WITH

ASBESTOS TAPE

250ml GRADUATEDCYLINDER~

GAS DISPERSIONTUBE, COARSEFRillED GLASS'"

35/20 BALL-SOCKET

100 ml KETTLE

All dimensions in m il l irrrct r es.

N2 OUTLET

FIG. I ApPARATUS FOR DETERMINATION OF METHABENZTHIAZURON

CONTENT ( ALKALINE HVVROLY8IS METHOD)

8

IS : 11008 • 1984

that the contents start boiling. Continue boiling for 90 minues. Stopheating while continuing to pass nitrogen for next 5 minutes.

NOTE - Hearing of the kettle should be controlled so that proper refluxing iseff('ctcd. Ca.rry over of condensate to the receiver, which may result frorn vigorousdistillation may give higher resu lts to the extent of about one percent. So precautionshould always he taken to avoid such carryover. Low heating rate results in lowresults for methabenxt hiazuron and further heating than 90 mj nutr-s does not help.

Disconnect the receiver first and then nitrogen supply. Transferthe contents of the receiver into a 5CO-lnl Erlenernyer flask. Rinse theinside and outside of the ga" deli very tube and the inside of the receiverwith boric acid solution a d dimr the washings to the Erlenmeyer Hask.

'I'itrate the contents of the Erlenmever flask with the standardhydrochloric acid solution to the original green colour of the boric acidsolution. The end point is best determined by corn paring the colour tothat of a blank solution of horic acid and bromocresol green.

A-2.5 Calculation

Methabenzthiazuron content, percenthy mass

where

22- lOx TT x }f---Xl---- _0---

T7 = volume in rnl of standard hydrochloric acid solutionused,

N normally of standard hydrochloric acid solution, and

At{ c:::I mass in g of samph- taken for test.

9

IS : 11008 • 1984

( Continued from pagl 2 )

Director General, lSI ( Ex-officio Member )

Rlprestll!ingDepartment of Agriculture, Government of Tamil

Nadu, MadrasDtt R. V. VDtKATARATNAM Regional Research Laboratory ( CSIR ), Hyderabad

DR N AOA BRUSHAN R AO ( Alternate)DR S 4.NTO~H YELr~OH.E Analytical Testing Services Pvt Ltd, New Delhi

DR D. B. A NAN T H It.NARAYANA ( Alurnate )

SHRIT.PURNANANDAM,Director ( Agri & Food)

Members

SHRIN.S.VEN¥ATARAMAN

SUfI/ary

SHRI LAJ1NIPEH SINOH

Deputy Director ( Agri & Food), lSI

10

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