IS 14626: Method for Determination of Total Bromide Residues in Grains and Food Commodities Fumigated with Methyl Bromide

8 Pages·1999·1 MB·English

by  Bureau of Indian Standards

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IS 14626 (1999): Method for Determination of Total Bromide
Residues in Grains and Food Commodities Fumigated with
Methyl Bromide [FAD 1: Pesticides and Pesticides Residue
Analysis]
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IS 14626 : 1999
Y7mmw

METHOD FOR DETERMINATION OF TOTAL
BROMIDE RESIDUES IN GRAINS AND FOOD
COMMODITIES FUMIGATED WITH METHYL
BROMIDE
ICS 65.100 ; 67.040

0 BIS 1999
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
*
NEW DELHI 110002
January 1999 Price Group 1
sedicitseP eudiseR sisylanA lanoitceS ,eettimmoC DAF 34
DROWEROF
sihT naidnI dradnatS was adopted yb the uaeruB of naidnI ,sdradnatS after the draft dezilanif yb the sedicitseP
eudiseR sisylanA lanoitceS eettimmoC had neeb devorppa yb the dooF dna erutlucirgA noisiviD .licnuoC
lyhteM edimorb SI desu as a tnagimuf rehtie as hcus or ni erutximda htiw other lairetam for lortnoc of pests of
stored doof/sniarg ,seitidommoc hcus as fresh stiurf dna ,selbategev stored stcudorp ekil ,ruolf yrd ,stiurf etc.
tneuqerF dna desaercni esu of lyhtem edimorb netfo tluser ni lufmrah effects eud ot sti cixot .erutan luferaC
tnemssessa of seudiser ,si therefore, na tnatropmi step ni gnidraugefas namuh htlaeh dna ni the tnemhsilbatse of
dnuos yrotaluger .ycilop
sihT dradnats lliw elbane the htlaeh seitirohtua srehtodna degagne ni the dleif ot wollof a mrofinu test erudecorp
for noitamitse of latot edimorb ni doof/sniarg seitidommoc detagimuf htiw lyhtem .edimorb
nI noitaraperp of siht dradnats eud noitaredisnoc has neeb nevig ot the stimil of latot edimorb seudiser hcihw
evah neeb dial nwod rednu the snoisivorp of Prevention of Food Adulteration Act, 1954 dna seluR demarf
.rednuereht ehT deificeps test sdohtem are evitisnes ot the debircserp slevel of .eudiser
nI gnitroper the tluser of a test or sisylana edam ni ecnadrocca htiw siht ,dradnats fi the lanif ,eulav devresbo or

,detaluclac si ot eb dednuor off, ti llahs eb enod ni ecnadrocca htiw SI 2 : 1960 seluR‘ for gnidnuor off laciremun

seulav (revised)‘.
IS 14626 : 1999
Indian Standard
METHOD FOR DETERMINATION OF TOTAL
BROMIDE RESIDUES IN GRAINS AND FOOD
COMMODITIES FUMIGATED WITH METHYL
BROMIDE
1 SCOPE IS No. Title
Methods of gnilpmas for the -reted
sihT dradnats sebircserp the dohtem for noitanimreted 1 iiii (part ‘) ’
noitanim of sedicitsep eudiser : Part
of latot edimorb seudiser ni sniarg dna food
1 larutlucirgA dna food -moc
seitidommoc detagimuf htiw lyhtem .edimorb
seitidom
2 REFERENCE 3 TESTS
stseT llahs eb deirrac tuo ni ecnadrocca htiw the
ehT gniwollof naidnI dradnatS sniatnoc snoisivorp
dohtem nevig ni xennA .A
hcihw hguorht ecnerefer ni siht text, setutitsnoc
noisivorp of siht .dradnats tA the emit of ,noitacilbup 4 GNILPMAS
the snoitide detacidni was .dilav
evitatneserpeR selpmas for the esoprup of noitamitse
of latot edimorb seudiser llahs eb nward ni ecnadrocca
htiw SI 11380 (Part 1).
ANNEX A
(Clause 3)
DETERMINATION OF TOTAL BROMIDE RESIDUE
A-l TITRATION METHOD etelpmoC noitsubmoc of the cinagro rettam nac eb
effected tseb yb gninruter yna cinagro rettam that has
A-l.1 Procedure desiar evoba the NaOH ot the mottob of the ,elbicurc

A elpmas of 01-5 g si treated ni a 100 lm lekcin nehw ti sexim htiw the tlem dna si ylisae deyortsed yb
elbicurc htiw 40 lm of cilohocla HOK (2.5 g ni 100 lm noitidda of .edixorep sihT si dehsilpmocca yb
of deifitcer ,tirips that si 95 tnecrep ,)lohocla dewolla ylluferac gnitator the hot elbicurc ot wash nwod the
ot dnats for na ruoh dna detaropave ot ssenyrd no a cinagro rettam dna gnidda 0.5 g erom of .edixorep fI
maets .htab tI si neht deird for a short emit at C°011 on gninrub or gnilbbub takes ,ecalp the noitadixo si
dna si derevoc htiw 10 g of NaOH .stellep ehT .etelpmoc A few nobrac selcitrap hcihw yam niamer
elbicurc si tfel for na ruoh or two no a hot etalp litnu after lanif noitidda of edixorep do ton affect the
the gnilbbub or gnikoms ,sehsinimid after hcihw ti si ycarucca of the .stluser
decalp ni a elffum ecanruf at .C“OO6 noisuF dluohs eb
ehT elbicurc si rotated ot wolla the tlem ot yfidilos no
deirrac tuohtiw evissecxe gninrub or .gnimaof fI the
the sedis dna ,delooc the stnetnoc are devlossid ni
charge semoceb detingi the elbicurc dluohs eb
75 lm of water. noituloS of the muidos sdnuopmoc si
devomer morf the elffum litnu the emalf si
denetsah yb gnicalp the elbicurc no a hot etalp for
.dehsiugnitxe tI si neht denruter ot the elffum dna siht
lareves .setunim ehT noitulos si derrefsnart ot a
process si repeated litnu the elitalov gases evah neeb
400 lm rekaeb dna yllaitrap dezilartuen htiw tuoba
.devomer muidoS edixorep si added ot the tlem a few
50 lm of 6 N .lCH ehT noitulos si deliob ot yortsed
gm at a emit ot etelpmoc the noitadixo of the gniniamer
sedixorep dna ot ecuder the emulov ot 521-ool .lm
nobrac or cinagro .rettam ehT edixorep llahs eb added
lekciN sedixordyh dna other elbulosni sedixordyh are
ylsuoituac elihw the elbicurc si devomer morf the
devomer yb gniretlif hguorht a namtahW No. 2 retlif
,ecnanruf edimorb si tsol fi the charge snrub htiw a
paper gnitcelloc the etartlif dna sgnihsaw ni 8 500 lm
eralf nehw too hcum edixorep si added.
ediw htuom reyemnelre .ksalf

1
P
IS 14626 : 1999
A-l.2 Extraction A-1.2.1 Standardization of Thiosulphate
ehT etartlif si edam ylthgils dica htiw 6N ,lCH neht NlO.O desilibats htiw 1 g of Na2C03 per ,ertil
desilartuen htiw NaOH ,noitulos gnitsujda ot the dezidradnats tsniaga 0.01 N KI03 gnisu 75 lm water,
ruoloc egnahc of lyhtem red. ehT emulov at siht tniop 10 lm 6N H2S04 dna 0.5 g erup .IK
dluohs eb yletamixorppa 150 .lm
3.l-A noitaluclaC
tuobA 2 g of muidos dica phosphate NaH2 Po4.H20
dna 5 lm of etirolhcopyh (1N muidos or muissatop latoT ,edimorb gk/gm = (’ - @ ’ N ’ 133*2
M x 0.01
etirolhcopyh ni 0.1 N NaOH or )HOK noitulos are
added dna the xim heated ot .gniliob retfA a etunim where
or so 5 lm of muidos etamrof noitulos (50 g/100 )lm
S = emulov of etahplusoiht desu for ,elpmas
are decudortni dna gniliob si deunitnoc for 2 .setunim
ehT elpmas si delooc dna treated htiw a few drops of B = emulov of etahplusoiht desu for ,knalb
1 tnecrep muidos etadbylom ,noitulos 0.5 g erup N = ytilamron of ,etahplusoiht dna
muissatop edidoi dna 25 lm of 6 N ciruhplus .dica M = ssam of elpmas ni smarg nekat for the
noitartiT dluohs eb enod yletaidemmi htiw dradnats test.
0.01 N Na2S203, starch rotacidni added tsuj erofeb the NOTE-To niatbo edimorb sa lyhtem edimorb esu rotcaf 158.3
dne .tniop A knalb noitartit si osla deirrac ,tuo gnisu rof noitceted up ot 1 .mpp
lla .stnegaer
Bureau of Indian Standards
si a yrotutats noitutitsni dehsilbatse rednu eht ot etomorp
BIS Bureau of Indian Standards Acr, 1986
suoinomrah tnempoleved fo eht seitivitca ,noitazIdradna&fo gnikram dna ytilauq noitaci’fitrec fo sdoog dna
gnidnetta ot detcennoc srettam ni eht .yrtnuoc
rhgirypoC
slB sah eht thgirypoc fo all sti .snoitacilbup oN trap fo eseht snoitacilbup yam eb decudorper ni yna mrof
tuohtiw eht roirp noissimrep ni gnitirw fo .SIB sihT seod ton edulcerp eht
free use, in the course of
gnitnemelpmi eht ,dradnats fo yrassecen ,sliated hcus as slobmys dna ,sezis epyt ro edarg .snoitangised
seiriuqnE gnitaler ot thgirypoc eb desserdda ot eht rotceriD ,)noitacilbuP( .SIB
Review of Indian Standards #
stnemdnemA are deussi ot sdradnats as eht deen sesira no eht basis fo .stnemmoc sdradnatS are osla deweiver
;yllacidoirep a dradnats gnola htiw stnemdnema si demriffaer nehw hcus weiver setacidni taht on segnahc are
;dedeen fi eht weiver setacidni taht segnahc are ti,,dedeen si nekat pu rof .noisiver Users fo naidnI sdradnatS
dluohs niatrecsa taht yeht are ni noissessop fo eht tsetal stnemdnema ro noitide yb gnirrefer ot eht tsetal eussi
fo SIB‘ ’koobdnaH dna sdradnatS‘ ylhtnoM .’snoitiddA
sihT naidnI dradnatS sah neeb depoleved morf :toD .oN
FAD 34 ( 378 ).
Amendments Issued Since Publication
. .
dnemA .oN etaD fo eussI txeT detceffA
UAERUB OF INDIAN STANDARDS
:sretrauqdaeH
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lanoigeR :seciffO enohpeleT

lartneC : kanaM ,navahB 9 rudahaB hahS rafaZ graM 323 76 17,323 38 41
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nrehtroN : 0CS 335-336, rotceS ,A-43 HRAGIDNAHC 160022 60 38 43
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