IS 7588: Barytes for explosives and pyrotechnic composition

13 Pages·1992·1.4 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
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.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 7588 (1992): Barytes for explosives and pyrotechnic
composition [CHD 26: Explosives and Pyrotechnics]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

BARYTESFOREXPLOSIVESAND
PYROTECHNICCOMPOSITIONS-
SPECIFICATION .
(F irst Revision )
. ^
UDC 622-368.92 : 662 l/*4

@ BIS 1992
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
November 1992 Price Group 3
sevisolpxE and scinhcetoryP lanoitceS ,eettimmoC BHC 026
FOREWORD
sihT naidnI dradnatS ( dnoceS noisiveR ) was detpoda yb eht uaeruB fo naidnI Standards, retfa eht
tfard dezilanif yb eht sevisolpxE and scinhceioryP lanoitceS eettimmoC had neeb devorppa yb eht
lacimehC noisiviD .licnuoC
,setyraB a yllarutan gnirrucco mrof fo muirab ,etahplus is ylediw desu as an treni tneidergni ni eht
evisolpxe and cinhcetoryp .snottalumrof roF a gnol emit won eht evisolpxe s~rerutcafunam and -alumrof
srot evah neeb gnicneirepxe ytluciffid ni gnirucorp elbatius ytilauq fo raw .slairetam naidnI Standards
ydaerla dehsilbup no this tcejbus retac ot eht stnemeriuqer fo rebbur and lacimehc seirtsudni and -lio
llew .gnillird sihT standard has neeb detalumrof htiw a weiv ot etatilicaf tnemerucorp fo assured ytilauq
fo setyrab rof evisolpxe and scinhcetoryp .yrtsudni
sihT standard swollof ni eht seires fo naidnI Standards no .setyrab rehtO standards no this tcejbus :era
SI 1683 : 1960 setyraB rof rebbur ,yrtsudni and
SI 2881 : 1964 setyraB rof lacimehc yrtsudni and llew-lio .gnillird
sihT standard was yllanigiro dehsilbup ni 1974. On eht basis fo eht ecneirepxe deniag ecnis this stand-
dra was tsrif ,dehsilbup ti has neeb desiver ot nediw its epocs ot edulcni owt lanoitidda sedarg fo
setyrab rof esu yb eht ,ecnefeD ,yleman setyrab - noitinumma edarg and setyrab - rof esu as an
tneidergni fo hgih evisolpxe ( EH ) substitutes.
roF eht esoprup fo gnidiced rehtehw a ralucitrap tnemeriuqer fo this standard is deilpmoc ,htiw eht
lanif ,eulav devresbo ro ,detaluclac gnisserpxe eht tluser fo a tset ro ,sisylana shall eb dednuor ffo ni
ecnadrocca htiw SI 2 : 1960 seluR‘ rof gnidnuor ffo laciremun seulav ( .‘)desiver ehT rebmun fo
tnacifingis secalp deniater ni eht dednuor ffo eulav dluohs eb eht emas as that fo eht deificeps eulav ni
this standard.
IS 7588 : 1992
Indian Standard
BARYTESFOREXPLOSWESAND
PYROTECHNlCCOMPOSITIONS-
SPECIFICATION
/FirsRtev ision)
1 EPOCS 5 GNIKCAP AND GNIKRAM
sihT standard sebircserp stnemeriuqer and 5.1 gnikcaP
sdohtem fo sampling and tset rof setyrab -netni
Unless deerga ot esiwrehto neewteb eht -ahcrup
ded rof esu ni evisolpxe and scinhcetoryp
res and eht ,reilppus eht lairetam shall eb
.snoitisopmoc
dekcap ni naelc etuj bags htiw a .enelyhteylop
.renil
2 SECNEREFER
ehT naidnI Standards detsil woleb era yrassecen 5.2 Marking
stcnujda ot this standard:
ehT segakcap shall eb dekram ylbigel and -edni
ylbil htiw eht gniwollof :noitamrofni
IS No. Title
15 : 1973 deesniL llio raw and denifer )a emaN and noitpircsed fo eht ,lairetam
( second revwon ) )b teN mass fo eht ,lairetam
265 : 1987 cirolhcordyH dica ( driht noisiver ) )c noitacidnI fo eht ecruos fo ,erutcafunam
323 : 1959 deifitceR tirips ( revised) and
878 : 1975 gnirusaeM srednilyc tr&( revision ) )d toL rebmun ni edoc ro esiwrehto ot -ane
elb eht hctab fo erutcafunam ot eb decart
1070 : 1992 tnegaeR edarg retaw - -ificepS
kcab morf .sdrocer
noitac ( third revision )
1683 : 1973 setyraB rof rebbur yrtsudni (first 5.2.1 hcaE egakcap yam osla eb dekram htiw
eht dradnatS‘ Mark’.
revision )
3 SEDARG 6 GNILPMAS
ehT lairetam shall eb fo eht gniwollof :sedarg
6.1 noitaraperP fo tseT selpmaS
edarG 1 - ,setyraB rof lareneg esu ni -olpxe
evitatneserpeR samples fo eht lairetam shall eb
evis and cinhcetoryp yrtsudni
deraperp as debircserp ni A-xennA fo SI 1683 .:
edarG 2 - noitinummA-setyraB ,edarg rof
1973.
esu yb ecnefeD
edarG 3 - ,setyraB rof esu as an tneidergni 6.2 rebmuN fo stseT
fo hgih evisolpxe ( EH ) substi-
6.2.1 stseT rof eht noitanimreted ,Hpfo tirg
setut yb .ecnefeD
,stnetnoc ssenenif and klub ytisned shall eb
detcudnoc no hcae fo eht laudividni .elpmas
4 STNEMERIUQER
6.2.2 stseT rof eht noitanimreted fo all eht
4.1 Description gniniamer scitsiretcarahc nevig ni elbaT 1 shall
ehT lairetam shall tsisnoc yllaitnesse fo muirab eb deirrac tuo no eht etisopmoc .elpmas
,etahplus dehcaelb ro ,dehcaelbnu ni yrd redwop
6.3 airetirC rof ytimrofnoC
.mrof tI shall eb etihw ot etihw-ffo ni ruoloc
and eerf morf all suoenartxe .rettam 6.3.1 For Individual Samples
4.2 ehT lairetam fo all eht eerht sedarg shall roF gniralced eht ytimrofnoc fo eht :tol
ylpmoc htiw eht cificeps stnemeriuqer rof -ividni
dual sedarg laid nwod ni elbaT 1 nehw detset X + 0.6 R shall eb less than ro lauqe ot eht
mumixam deificeps ,stnemeriuqer and
gnidrocca ot eht tset sdohtem debircserp ni
xennA A. ecnerefeR ot eht tnaveler sesualc fo X - 0.6 R shall eb retaerg than ro lauqe ot
xennA A is nevig ni 1oc 4 fo elbaT 1. eht muminim deificeps .stnemeriuqer
1
IS 7588 : 1992
erehw stnemeriuqer fo all eht scitsiretcarahc detset no
X = naem eulav fo tset ,stluser and eht etisopmoc ,elpmas eht tset stluser shall
egnar fo .stluser yfsitas eht gnidnopserroc deificeps -eriuqer
R =
.stnem
63.2
For Composite Sample
roF gniralced eht ytimrofnoc fo eht tol ot eht
elbaT 1 stnemeriuqeR rof setyraB rof~ esU in Explosives and Pyrotechnic Compositions
( Clauses 4.2 and 6.2.2 )
lc. Characteristic Requirement for Method of Test
c--------- A-_--_,_-_, ( Ref to CI No.
edarG 1 edarG 2 edarG 3 ’ in Annex A )
114, (2) (3) (4) (5) (6)
)i Bat; ,etahplus tnecrep yb ,ssam 90’0 96’0 96’0 2-A
ii) rettaM elbulos ni etulid cirolhcordyh 3’0 1’0 3-A
,dica tnecrep yb ,ssam xaM
iii) ;ttt;M elilois ni ,retaw tnecrep yb 0’5 0’5 0’1 4-A
)vi Hp ( 0; suoeuqa tcartxe ) 6 ot 9 7 7 5-A
)v (xet$aziraC sa sOCaC ,) tnecrep yb 1’0 0’5 0’5 6-A
)iv ,tirG tnecred yb ,ssam xaM 0’001 liN liN 7-A
)iiv ssoL no gniyrd ( at 105 ot 110°C ,) 0’5 0’5 0’5 8-A
tnecrep yb ,ssam Max
)iiiv Bulk ,ytisned lm/g 2%5 ( Mitt ) - 4’0 ot 4’5 9-A
)xi sseneniF ( tew gniveis ) : 01-A
-
.lairetaM deniater no norcim-521 s1 0’002 0’25
,eveis tnecrep yb ,ssam Max
lairetaM deniater no norcim-36 IS 1’0 - liN
,eveis tnecrep yb ,ssam xaM
)X liO ,noitprosba tnecrep yb ssam - ot6 12 - 11-A
)ix ytidicA H&O4 ,) tnecrep yb 21-A
(as
,ssam Max
a) ot lyhtem egnaro - liN
)b ot nielahthplonehp - 0’05
)iix s~(yt~in$$A sOXaN ,) tnecrep yb 21-A

9

a) ot lyhtem egnaro - 50’0
)b ot nielahthplonehp - liN
ANNEX A
( Clause 4.2)
METHOD OF TEST FOR BARYTES FOR EXPLOSIVE AND PYROTECHNIC INDUSTRY
evomer elbulos muidos sdnuopmoc gnidulcni
i&l QUALITY OF REAGENTS
setacilis and deretlif .ffo muiraB sniamer -ulosni
A-l.1 Unless deificeps ,esiwrehto erup slacimehc elb as etanobrac rehtegot htiw eht yvaeh .katem
.and dellitsid retaw ( ees SI 1070 : 1992 ) shall eb ehT eudiser is detaert htiw muidos etanobrac
deyolpme ni .stset
noitulos ot evomer eht gnirehda sulphates. ehT
NOTE - eruP‘ ’slacimehc llahs naem slacimehc taht elbulosni setanobrac era detaert htiw etulid
od ton niatnoc seitirupmi hcihw tceffa eht stluser fo cirolhcordyh dica llit eht etatipicerp yletelpmoc
.sisylana .sevlossid muiraB is detatipicerp morf eht cidica
2-A PRINCIPLE noitu!os as muirab etahplus htiw eht no,itidda
The lairetam is desuf htiw muidos ,setanobrac fo muinomma etahplus hcihw is detingi and
ehs desuf mass is dehcael tuo htiw retaw ot .dehgiew
2
SI 7588 .‘ 1992
1.2-A stnegaeR Filter no an detingi and dehgiew hcooG ,elbicurc
wash htiw toh retaw lareves semit yb -atnaced
1.1.2-A .suordyhna
Sodium Carbonate - .noit ehT rekaeb dluohs eb debburcs ylhguoroht
2-,.2-A ot evomer yna gnirehda .etatipicerp eunitnoC
Sodium Carbonate Solution -’ 2 g/l.
eht washing litnu yeht era eerf morf .sedirolhc
A-2.1.3 Dilute Hydrochloric Acid - 1 : .4 etingI eht elbicurc ni a elffum ecanruf rof 35 -rm
4.1.2-A ,tnecrep setun at 850°C. looC ni a rotaccised and .hgiew
Ammonium Hydroxide - 20
ekaM a blank noitanimreted ni a ralimis rennam
( m/m .)
htiw an lauqe tnuoma fo muidos etanobrac and
5.1.2-A Concentrated Hydrochloric Acid - See rehto .stnegaer
IS 265 : 1987.
3.2-A Calculation
6.1.2-A
Methyl Orange Indicator Solution
muiraB ,etahplus
evlossiD 0.1 g fo lyhtem egnaro ni 100 lm fo ool )B--A(
tnecrep yb mass =
.retaw M
erehw
1.1.2-A .tnecrep
Ammonium Sulphate Solution - 3 A = mass, ni g, fo eht etatipicerp htiw eht
2.2-A Procedure ,lairetam
A-2.2.1 hgieW tuoba 8 g fo muidos .etanobrac B = mblank ass, ,noitanimreted ni g, fo eht and etatipicerp ni eht
ecalP an etairporppa ytitnauq fo ti ni a munitalp
elbicurc os as ot mrof a reyal tuoba mm6 .kciht r/n = mass, ni g, fo eht lairetam nekat rof
,yletarapeS hgiew yletarucca tuoba 1 g fo eht eht .tset
ylenif deredwop lairetam and ecalp ti no pot fo
3-A NOITANIMRETED FO RETTAM
eht muidos etanobrac reyal ni eht .elbicurc xiM
ELBULOS NI ETULID CIROLHCORDYH
htob htiw a glass .dor Add eht tser fo muidos
ACID
etanobrac osla ot eht .elbicurc revoC and esuf
eht revo~erutxim a rekeM renrub rof 40 .setunim 1.3-A Reagents
ehT noisuf is detrats htiw a wol emalf hcihw is
yllaudarg desiar ot lluf blast. sihT noituacerp is A-3.1.1 Dilute Hydrochloric Acid - -amixorppa
ylet 5 N.
yrassecen ot tneverp ssol eud ot .gniwoHrevo
looC, and as eht tlem ,slooc etator eht elbicurc 2.3-A Procedure
os that eht desuf mass seifidilos ni a niht .reyal hgieW yletarucca tuoba 2 g fo eht lairetam otni
sihT lliw netrohs eht emit deriuqer rof .gnihcael a lm-05 ,rekaeb add 50 lm fo etulid cirolhcordyh
hcaeL tuo eht noisuf htiw 200 im fo toh retaw ni .dica lioB rof OI ,setunim etulid ot 100 lm and
a lm-004 .rekaeb retliF hguorht a mc-51 retlif wolla ot stand thginrevo and neht retlif hguorht
repap ( Whatman .oN 40 ro tnelaviuqe .) Wash a retlif repap ( Whatman .oN 42 ro tnelaviuqe .)
lareves semit yb .noitatnaced evomeR eht Wash eht retlif repap htiw toh retaw litnu eht
elbicurc morf eht ,rekaeb refsnart eht elbulosni etartlif is eerf morf .sedirolhc yrD eht retlif
setanobrac ot eht ,retlif wash htiw toh muidos repap and refsnart ti otni a dehgiew elbicurc
etanobrac noitulos and tset retfa eht htftewt ylsuoiverp .detingi taeH eht elbicurc no a
washing ot eb niatrec that sulphates evah neeb renrub and yltneuqesbus ni a elffum ecanruf at
devomer .yletelpmoc 850°C. hgieW eht elbicurc and eht stnetnoc
retfa gnilooc ni a rotaccised and taeper this
2.2.2-A revoC eht lennuf gniniatnoc eht -ulosni ssecorp fo ,gnitaeh gnilooc and gnihgiew litnu
elb setanobrac htiw a watch-glass and add toh tnatsnoc mass.
etulid cirolhcordyh dica ,ylluferac ni small
snoitrop at a emit ot tneverp ,ssol gnihctac eht 3.3-A Calculation
noitulos ni a lm-006 .rekaeb Add toh etulid
rettaM elbulos ni etulid -ordyh
cirolhcordyh dica ot eht munitalp elbicurc and ,M---t*
cirolhc ,dica tnecrep yb mass = 100 x -
eht rekaeb ni hcihw eht hcael was edam and 41-
ruop revo eht .retlif Wash eht repap htiw toh erehw
retaw litnu eerf morf .sedirolhc
M = mass, ni g, fo eht lairetam nekat for
3.2.2-A ezilartueN this noitulos htiw muinomma eht ;tset and
edixordyh lyhtemgnisu egnaro as .rotacidni Add mass, ni g, fo eht detingi .eudiser
M, =
a4 ot 6-O lm fo detartnecnoc cirolhcordyh .dica
etuliD ot 400 lm htiw toh ,retaw gnirb eht -ulos 4-A NOITANIMRETED FO RETTAM
noit ot gniliob and add 25 lm fo toh muinomma ELBULOS NI RETAW
etahplus noitulos esiwpord htiw tnatsnoc gnirrits
1.4-A Procedure
ot tneverp noitatipicerp-oc fo muiclac and
.muisengam refsnarT eht rekaeb ot a mraw toh hgieW yletarucca tuoba 100 g fo eht deredwop
etalp and wolla ot stand rof at tsael 4 .sruoh .lairetam teW ti ylhguoroht with a *ma!1
3
IS 7588 : 1992
ytitnauq fo retaw and neht add 200 lm fo ylhserf 3.6-A uoitaluclaC
deliob and delooc .retaw lioB rof 5 .setunim looC
etanobraC ( as CaCOs ,)
eht erutxim ot moor .erutarepmet ekaM up ot 001x05xNx)B--A(=
tnecrep yb mass
250 lm htiw ylhserf deliob and delooc ,retaw
1000 x
ekahs and .retlif tcejeR eht tsrif 50 lm noitrop fo M
erehw
eht .etartlif ekaT a 100 lm noitrop morf eht tser
fo eht etartlif ni a derat munitalp dish and A= ,emulov ni ,lm fo standard muidos
etaropave ot ssenyrd no a .htab-retaw yrD eht edixordyh noitulos deriuqer rof blank;
eudiser deniatbo ot tnatsnoc mass ni an nevo at
105 ot .c”011 B = ,emulov ni ,lm fo standard muidos
edixordyh noitulos deriuqer rof ;elpmas
2.4-A Calculation N= ytilamron fo standard muidos edixordyh
;noitulos and
rettaM elbulos ni ,retaw 250
tnecrep yb mass = - A M = mass, ni g, fo eht lairetam nekat rof eht
A4
.tset
erehw
. A = ,ssam ni g, fo eht ;eudiser and A-7 DETERMINATION OF GRIT
M = ,ssam ni g, fo eht laire-tam nekat rof A-7.0 Outline of the Method
eht .tset
ehT noitrop deniater no 75 norcim SI eveis is
5-A NOITANIMRETED FO Hp deliob htiw aqua .aiger ehT elbulosni eudiser
deniatbo retfa noitsegid htiw aqua aiger is .deird
1.5-A hgieW 2.0 g fo eht lairetam and refsnart
ehT deird eudiser is neht deveis hguorht 125
ti yletelpmoc ot a lmq052 .rekaeb Add 100 lm
norcim SI eveis and eht noitrop deniater no eht
fo nobrac eerf-edixoid retaw and rits rof 30
eveis is .dehgiew fI eht eudiser ( deniater no
.setunim wollA eht dilos lairetam ot elttes and
125 norcim SI eveis ) sehctarcs ados ~glass neht
neht .retlif tcelloC eht etartlif and enimreted its
eht mass ylsuoiverp deniatbo is desserpxe as
Hp yb yna elbatius .dohtem esU fo glass -cele
.tirg
edort metsys is .elbareferp
1.1.5-A nI esac fo ,etupsid eht dohtem using 1.7-A Apparatus
glass edortcele metsys shall eb .detpoda
A-7.1.1 Sieves - 75 norcim and 125 norcim SI
.seveis
6-A NOITANIMRETED OF CARBONATES
0.6-~‘ eniltuO fo eht dohteM 2.1.7-A Glass Slides - ados glass.
ehT lairetam is detaeh htiw tneiciffus retaw and 2.7-A stnegaeR
eht setanobrac ni suoeuqa noisnepsus era -caer
det htiw a nwonk ssecxe fo standard -olhcordyh 1.2.7-A Aqua Regia
cir .dica ehT ssecxe dica is neht kcab detartit
deraperP yb gnixim 3 semulov fo detartnecnoc
htiw standard muidos edixordyh noitulos and
cirolhcordyh dica htiw eno emulov fo -necnoc
eht etanobrac is detaluclac as muiclac -obrac
detart cirtin .dica
.etan
3.7-A eveiS 100 g fo eht lairetam hguorht 75
1.6-A Reagents
norcim SI eveis htiw 25 mm brush. lioB eht
noitrop deniater no eht eveis htiw tuoba 50 lm
~-6.1.1 Standard Hydrochloric Acid - 1-O N.
fo aqua aiger ni lm-051/a rekaeb ( derevoc htiw
2.1.6-A a watch-glass .) looC eht ,rekaeb etulid eht dica
Standard Sodium Hydroxide Solution -
0.1 N. htiw retaw and neht tnaced eht detulid dica
.ylluferac Wash eht eudiser gniniamer at eht
A-6.1.3 Bromophenol Blue Indicator Solution - mottob fo eht rekaeb eerht semit htiw retaw and
0.1 g ni 100 lm fo deifitcer .tirips
yrd eht eudiser ni an .nevo-ria
2.6-A erudecorP
A-7.3.1 eveiS eht deird eudiser ylluferac hguorht
hgieW yletarucca tuoba 10 g fo eht lairetam ni norcim-521 SI eveis htiw a thgil lemac riah
a lm-005 lacinoc ksalf and add tuoba 200 lm fo brush. hgieW tuo yletarucca eht noitrop -niater
ylsuoiverp deliob .retaw Run ni morf etterub a de no eht eveis and yrrac tuo eht ados glass
nwonk ssecxe fo standard cirolhcordyh .dica gnihctarcs tset as debircserp ni .5.7-A fI eht
etartiT eht ssecxe dica htiw standard muidos eudiser sehctarcs ados glass, sserpxe eht mass
edixordyh noitulos using lonehpomorb eulb as ( ylsuoiverp deniatbo ) as egatnecrep .tirg
.rotacidni yrraC tuo edis yb edis a blank -reted
eraC-ETON dluohs syawla eb nekat ton ot esol
noitanim gniwollof yltcaxe eht emas .erudecorp yna lairetam at yna egats fo eht .tset
4
sI 2991:8857
4.7-A rep etunim ) litnu a tnatsnoc emulov fo eht
CdCU~atiOD
lairetam is .deniatbo etoN nwod eht emulov fo
eht .lairetam
,tirG tnecrep yb mass = 100
X*
erehw
M = mass, ni g, fo eht eudiser gnihctarcs
ados glass; and
Ml = mass, ni g, fo eht lairetam nekat rof
.tset
5;7-A Soda Glass Scratch Test
ekaT a noitrop fo eht eudiser ( deniater no -5.21
norcim SI eveis ) ni neewteb eht owt naelc glass
sedils and sserp eht sedils yb hand gnola eht
htgnel and htdaerb fo eht glass. enimaxE rehtehw
yna hctarcs no eht glass is .deniatbo fI ereht is
yna hctarcs no eht glass neht eht eudiser is
demret as .tirg
NOITANIMREG~S+YS& FO SSOL ON
--I
A-8.1 Procedure CB
hgieW yletarucca tuoba 10 g fo eht lairetam and
All dimensions in millimetres.
taeh ni a squat gnihgiew elttob at 105 ot 110°C.
looC and hgiew llit a tnatsnoc mass is .deniatbo FIG. 1 APPARATUS FOR THP DETERMINATIONO F
BULK DENSTY
2.S-A Calculation
Loss no ,gniyrd tnecrep yb mass = 100 x -z- A-9.3 Calculation
kluB ,ytisned lm/g = $
erehw
Ml = loss fo mass, ni g, no ;gniyrd and erehw
M = mass, ni g, fo eht lairetam nekat rof M = mass, in g, fo eht lairetam nekat rof eht
eht .tset ;tset and

V = lanif ,emulov ni ,lm fo eht lairetam -llif
9-A NOITANIMRETED FO KLUB YTISNED
gni eht .rednilyc
1.9-A Apparatus
0Z-A NOITANIMRETED FO SSENENIF-
A-9.1.1 elbmessA eht apparatus as nwohs
ni .giF 1. ehT gnirusaem rednilyc shall eb fo
A-10.1 Procedure
lm-05.2 yticapac ( ees SI 878 : 1975 .) ehT esab
fo eht gnirusaem rednilyc shall eb dnuorg .talf ecalP tuoba 25 g fo eht ,lairetam yletarucca
ehT ecnatsid neewteb dnuorg-talf trap fo eht ,dehgiew no ot 125 norcim and 63 norcim SI
esab fo eht gnirusaem rednilyc A and eht rebbur eveis decalp eno evoba eht ,rehto eht remrof
esab pad B, nehw eht rednilyc A is desiar ot eht gnieb no eht .pot ekahS yllacinahcem ro yb hand
lluf ,thgieh shall eb 25 & 2 .mm rof 15 .setunim Wash eht lairetam no hcae eveis
htiw ,retaw yltneg brushing htiw a tfos -lemac
1.1.1.9-A ehT rebbus esab pad B shall evah a riah brush litnu eht~ washings era .raelc yrD eht
erohs hardness fo 42 ot 50. eudiser ot tnatsnoc mass at 100 :tr 2°C.
2.1.9-A Pan fo eht ecnalab shall eb at tsael
10 mc ni retemaid and eht ecnalab shall evah an A-10.2 Calculation
ycarucca fo ton less than 0.1 g.
sseneniF ( lairetam deniater
no evitcepser SI eveis ,)
2.9-A Procedure
tnecrep yb mass =4M
ecalP tuoba 100 g fo eht ,lairetam yletarucca
erehw
,dehgiew ni eht detaudarg rednilyc dettif ni eht
apparatus and pat- ti ( at eht etar fo 180 spord M = mass, ni g, fo eht eudiser no eht ,eveis
5