IS 14127: Insoluble (Amorphous) sulphur for rubber industry

11 Pages·1995·1.3 MB·English

by  Bureau of Indian Standards

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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 14127 (1995): Insoluble (Amorphous) sulphur for rubber
industry [PCD 13: Rubber and Rubber Products]
“!ा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””ै”
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“Knowledge is such a treasure which cannot be stolen”

IS 14127:1995

INSOLUBLE(AMORPHOUS) SULPHUR FOR
RUBBER INDUSTRY-SPECIFICATION
UDC 661’21’678’4’044’4

0 BIS 1995
BUREAU OF INDIAN STANDARDS
MANAR BHAVAN, 9 BAHADUR SHAH ZAPAR MARC \
NEW DELHI 11OOO2
February 1995 Price Group 3
rebbuK stcudorP lanoitceS ,eettimmoC PCD 3I
FOREWORD
sihT naidnI dradnatS was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard dezilanif yb
eht rebbuR stcudorP lanoitceS eettimmoC had neeb devorppa yb eht ,muelorteP laoC and detaleR
stcudorP noisiviD .licnuoC
elbulosnI sulphur is an tnatropmi mrof fo sulphur desu ylno ni eht rebbur .yrtsudni tI is ton elbulos
ni yna epyt fo rebbur .nobracordyh nehW ti is dexim ni ,rebbur ti sesrepsid tub sniamer
devlossidnu ni eht .rebbur ehT esu fo elbulosni sulphur stneverp eht tnempoleved fo a
detarutasrepus noitulos fo sulphur ni rebbur that srucco nehw cibmohr sulphur is .desu oN sulphur
moolb lliw poleved no eht ecafrus fo derucnu rebbur seceip nehw eht rebbur slooc retfa gnixim ro
;gnissecorp ,erofereht gnidliub kcat is .devreserp At gniruc ,serutarepmet elbulosni sulphur yldipar
smrofsnart ot a elbulos ,seiceps sevlossid ni eht ,rebbur and sretne otni eht noitazinacluv .ssecorp
erehT era owt lareneg sepyt fo elbulosni sulphur and eht lareneg noitpircsed fo hcae is deliated as
:swol1of
woL elbulosnI tnetnoC ruhpluS ro srewolF fo ruhpluS - sihT tcudorp is edam yb gniziropav erup
sulphur and gnihcneuq eht sropav ni an treni suoesag .erehpsomta A tceles edarg fo this tcudorp
sniatnoc neewteb 30 and 40 tntcrep fo ciremylop sulphur. sihT level fo elbulosni sulphur is netfo
tneiciffusni ot tneverp ,moolb and its esu is detcirtser ot rebbur sdnuopmoc gniniatnoc hgih slevel
fo srellif ro rebbur sdnuopmoc using tsedom stnuoma fo sulphur. ,yllacirotsiH this was eht tsrif
laicremmoc elbulosni sulphur .elbaliava
hgiH elbulosnI tnetnoC ruhpluS - nl this epyt fo elbulosni sulphur, eht tneutitsnocrojam is ciremylop
sulphur. ehT ciremylop sulphur level segnar morf 60 ot revo 95 .tnecrep ehT tcudorp is edam yb
gnitaeh sulphur ot serutarepmet retaerg than 160°C htiw tneuqesbus dipar .gnihcneuq ehT ciremylop
sulphur tnetnoc is desaercni yb gnitcartxe cibmoht sulphur morf eht dilos htiw an etairporppa .tnevlos
ehT tnuoma detcartxe is denimreted yb eht ralucitrap elbulosni sulphur .noitacificeps
elbulosnI sulphur osla sniatnoc dedda lio and yllanoisacco ylenif dnuorg .slarenim esehT era dedda
ot aid noisrepsid ni rebbur and ot timil sulphur dusting. ,revewoH eht evitidda slevel era yllausu
hcum rehgih than esoht desu htiw cibmohr sulphur. liO stnemtaert yam egnar as hgih as .15 tnecrep

fo eht latot .lairetam lareniM sevitidda yam tnuoma ot as hcum as 25 tnecrep fo eht lanif sulphur

.noitalumrof ehT tnemtaert slevel era syawla tnacitingis hguone ot eriuqer tnemtsujda ni eht
noitalumrof ot edivorp eht yrassecen sulphur rof etelpmoc .noitazinacluv nI this standard ereht era
owt sedarg fo elbulosni ( suohproma ) sulphur yleman edarG 1 - lio detaert and edarG 2 - tuohtiw
lio .denoitnem elbulosnI sulphur shall eb detaert htiw cinehthpan lio rof lio detaert .edarg
ehT eettimmoC elbisnopser rof its noitaraperp dediced ot eraperp a wen standard no elbulosni
( suohpromA ) sulphur rof rebbur yrtsudni ni eht thgil fo ecneirepxe .deniag A etarapes naidnI
dradnatS SI 8854 : 1994 ruhpluS‘ rof rebbur ’yrtsudni has neeb .deraperp
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 ( revised )‘. ehT rebmun fo
tnacifingis secalp deniater ni eht dednuor ffo eulav dluohs eb eht emas as that fo eht deificeps eulav
ni this standard.
.I!3 14127 : 1995
Indian Standard
INSOLUBLE (AMORPHOUS) SULPHUR FOR
RUBBER INDUSTRY- SPECIFICATION
1 SCOPE IS No. Title
sibT standard sebircserp ebt stnemeriuqer and 6655 : 1972 sdohteM fo tset rof sulphur
sdohtem fo sampling and tset rof elbulosni )suohproma( tnemdnemA( .oN )1 demriffaeR(
sulphur rof rebbur .yrtsudni
)2991
2 EVITAMRON SECNEREFER 7086 traP( )1 : sdohteM fo sampling and tset rof
rebbur gnidnQopmoC ,stneidergni
1473
traP 1 tnemdnemA( .oN )1
ehT gniwollof standards niatnoc snoisivorp ,hcihw
demriYlaeR( )0991
hguorht ecnerefer ni this ,txet etutitsnoc snoisivorp fo
eht standard. At eht emit fo ,noitacilbup eht snoitide
detacidni erew .dilav llA standards am tcejbus ot 3 SEDARG
,noisiver and seitrap ot stnemeerga desab no eht
standard era degaruocne ot etagitsevni eht ytilibissop 3.1 edarG 1 - lio .detaert
fo gniylppa ebt tsom tnecer noitide fo eht standards
detacidni woleb : 3.2 tuohtiw .lio
Grade 2 -
IS No. Title 4 STNEMERIUQER
460 traP( )1 : tseT seveis : traP 1 eriW htolc tset 4.1 ehT lairetam shall eb thgirb wolley redwop and
seveis drirlr( )noisiver demriffaeR(
5891 eerf morf .seitirupmi
)oJ!91
1070 : 1992 tnegaeR edarg retaw (third 4.2 ebT lairetam shall ylpmoc htiw ebt stnemeriuqer
revision) nevig ni elbaT 1 nehw detset gnidrocca ot eht
serudecorp nevig ni 1oc 5 fo elbaT 1.
stnemeriuqeR fo elbulosnI suohpromA( ) rubpluS rof rebbuR yrtsudnI
Table 1
(Clauses 4.2 and 6.2)
stamerluqR dohteM ro
,tseT teR ot

c -
edarG 2
Grade 1
)3( )4(
Acidity (H$OJ percent, BC.O 0.06 3.4 of IS 6655 : 1972
Mav
055 0.55 3.2 of IS 6655 : 1972
Residue On ignition, percca~. 03 03.0 3.3 of IS 6655 : 1972
Max
sswcniF sa residue (war) on 0.1 20 3 of IS 7086 traP( )1 : 1973 L
63 mesh, percelll, MUX
125 mesh, percent, MIX 0.2 0.2 od
180 mesh, percent. MUX 0.02 OS?2 od
802 i 99.0 3.1 of IS 6655 : 1972
sMuloXlI ,ruhplus ,lmcrcp 27 09 Annex A
niM no( latot
sample)
lamrehT noisrever ,lnecrcp XUM 03 03 Annex B
20 +
Normal oil wntenl, pamnt 1 0.0 Annex C

1
SI 14127 : 1995
6.2 Number of Tests
5 GNIKCAP DNA GNIKRAM
tseT for lla scitsiretcarahc of the lairetam nevig ni
5.1 Packing
elbaT 1 llahs eb detcudnoc on composite sample.
5.1.1 The lairetam llahs he packed in packages as
agreed ot neewteb the resahcrup dna the .reilppus
6.3 Criteria for Conformity
5.2 Marking
The tol llahs eb deralced as gnimrofnoc ot the
5.2.1 Each package llahs eb dekram htiw the stnemeriuqer of the noitacificeps fi lla ebt test stluser
:glliwollof no the etisopmoc elpmas yfsitas the .stnemeriuqer
lairetaM ylhgih ,elbammalfni
emaN dua grade of the ,lairetam 7 HANDLING AND SAFETY
noitacidnI of ecruos of ,erutcafunam
Net ssam of the ,lairetam Tbe lairetam llahs eb deldnah as nevig ni lanoitaN
htnoM dna raey of the ,erutcafunam dna ytefaS licnuoC Data Sheet No. 295-l .veR 83 dna -l
hctab/toL .rebmun 612 .veR 84.
5.2.2 BIS Certificntion Marking
ehT tcudorp yam osla he dekram htiw dradnatS Mark. 8 TSET SDOHTEM
5.2.3 ehT esu of the dradnatS Mark si denrevog yb 8.1 stseT llahs eb detcudnoc gnidrocca ot ebt sdohtem
the snoisivorp of uaeruB of naidnI sdradnatS Act, 1986 debircserp ni co1 5 of elbaT 1.
dna the seluR dna snoitalugeR edam .rednuereht ehT
sliated of snoitidnoc rednu hcihw the ecnecil for the
8.2 Quality of Reagents
esu of dradnatS Mark yam eb detnarg ot srerutcafunam
or srecudorp yam he deniatbo morf the uaeruB of
sselnU ,esiwrehto erup‘ ’slacimehc dna dellitsid water
naiduI .sdraduatS
(see SI 1070 : 1992) llahs eb deyolpme ni tests.
6 GNILPMAS
naem
NOTE - ‘Pun chemicals’ shell cltemicals that do not
6.1 evitatueserpeR selpmas of the lairetam llahs he
contain impurities which affect the results of ndalysis.
nward as debircserp ni SI 7086 (Part 1) : 1973.
ANNEX A
[Table 1, meh ])iv(

DETERMINATION OF PERCENTAGE OF INSOLUBLE SULPHUR
A-O PRINCIPLE A-1.2 Procedure
A-0.1 ehT test elpmas si detartit htiw tnevlos ot
evlossid the elbulos ruhplus dna yna .lio ehT elbulosni Accurately weigh to 0.001 g approximately 2 g (W )
ruhplus si deretlif off, deird dna .dehgiew of the test sample in a 400-ml beaker. Add 200 ml of
eneulot (A-1.1) and a magnetic stirrer. Cover with a
owT serudecorp are ,deificeps :ziv kcolc ssalg dna rits for 30 .setunim retliF hguorht a
tared deretnis 0SI ytisorop 04P ssalg retlif elbicurc
a) eneulot - ecnerefeR erudecorp
.),W( evomeR ebt eneulot yb .noitcus hsaW three
)b nobrac edibplusid - evitanretlA erudecorp semit htiw eneulot (20 .)lm
NOTE -The hvo procedures may give different results.
NOTE - The sample must never be sucked completely dry
before the last washing because reversion can occur due to the
l-A ENEULOT ( ECNEREFER
icing of the insoluble sulphur.
ERUDECORP )
yletelpmoC evomer the eneulot yb ,noitcus dna yrd
1.l-A stnegaeR
the ssalg elbicurc ni a gniyrd nevo ni a emuf draobpuc
rnruloT - tnegaeR grade. for 1 b at BOY, looc ni a rotaccised dna hgiew ),VI(
SI 14127 : 1995
A-l.3 Calculation and Expression of Results A-2.2 Procedure
etaluclaC eht egatnecrep elbulosni sulphur using eht yletaruccA hgiew ot 0.001 g yletamixorppa 5 g )VI( fo
gniwollof noitauqe : tset elpmas ni a 250~ml .rekaeb Add 100 cc fo nobrac
edihplusid and a citengam .rerrits revoC htiw a kcolc
(W, - WJ x 100 glass and rits rof 30 ,setunim retlif hguorht a 04P
tnecreP elbulosni sulphur = ytisorop derat glass retlif elbicurc (WJ. evomeR eht
no( latot )elpmas W nobrac edihplusid yb yrev thgil .noitcus Wash eerht
semit htiw nobrac edihplusid 02( .)lm
where
ETON -
Tha sample must never be sucked completely dry
,w = eht mass ni grams fo eht glass before the last washing baopuse reversion can cc.cur due to icing
of the insoluble sulphur.
,elbicurc
,w = eht mass ni grams fo eht glass elbicurc evomeR yletelpmoc eht nobrac edihplusid yb ,noitcus
and yrd eht glass elbicurc ni a gniyrd nevo rof 1 h
plus eudiser fo elbulosni sulphur,
at ..T# looC ni a rotaccised and hgiew
and (W,).
w = eht mass ni grams fo eht tset .noitrop A-2.3 Calculation and Expression of Results
etaluclaC eht egatnecrep elbulosni sulphur using eht
gniwollof noitauqe :
tnecreP elbulosni sulphur
tnecreP elbulosni sulphur = ’ ool nO( 1atot )elpmas tnecreP elbulosni sulphur ,W( - ),W x 100
no( eht sulphur )noitrop no( latot )elpmas =
tnecreP 1stot sulpbur
W
no( latot )eipmas
erehw
A-2 C RBON DISULPHIDE = eht mass ni grams fo eht glass
Y
ALTE &J ATIVE PROCEDURE ,elbicurc
= eht mass ni grams fo eht glass elbicurc
A-2.1 Reagents w,
plus ,ecudiser and
nobraC edihplusid - stnegaeR edarg ees( .)etoN
eht mass ni grams fo eht tset .noitrop
W =
NOTE - Carbon disulphide is a very noxious, toxic and
inflammable solvent; therefore take special safety precautions,
including the use of a fume hood. tnecreP elbulosni sulphur
tnecreP elbulosni sulphur x 100 no( latot )elpmas
no( eht sulphur )noitrop =
tnecreP latot sulphur
no( latot )elpmas

ANNEX B
[.TubZ1e, Item ])iiv(
DETERMINATION OF THERMAL REVERSION OF INSOLUBLE SULPHUR
-B 1 PRINCIPLE B-2.1.2 retemomrehT etarucca ot 0.2OC neewteb
TOO1 and .TO11
ehT tset elpmas is tpek ni a ciniffarap lio at lOSaC rof
a dexif emit and eht tnuoma fo elbulosni sulphur retfa 3.1.2-B
Drying Oven
eht tnemtaert is .derusaem
2.2-B Reagents
B-2 TOLUENE - REk’ERENCE
PROCEDURE ( METHOD 1) B-2.2.1 ciniffaraP ,lio suocsiv lacituecamrahp ,edarg
cimanyd ytisocsiv retaerg than 120 .Pc
B-2.1 Apparatus
B-2.2.2 Toluene - tnegaeR .edarg
1.1.2-B liO batb htiw citatsomreht lortnoc etarucca ot
f .co2.0

3
IS 14127 : 1995
B-3 PROCEDURE B-4 CALCULATION AND EXPRESSION OF
RESULTS
ruoP 20 lm fo eht ciniffarap lio )1.2.2-B( otni a 100 etaluclaC eht egatnecrep lamreht noisrever fo eht
lm ,rekaeb taking erac ton ot tew eht walls fo eht
elbulosni sulphur using eht gniwollof noitauqe :
.rekaeb
lw - ),w 103
tuP eht rekaeb otni eht citatsomreht bath )1.1.2-B( tnecreP noisrever = ,S( - x)001x -
tpek at hcus erutarepmet that eht lio ni eht rekaeb nac
W
sw
eb deniatniam at 105OC, lortnoc eht erutarepmet fo eht
lio in eht rekaeb htiw eht retemomreht ,41.2-B( erehw
nehw its erutarepmet is 105OC, add ylsuoituac
yletamixorppa 1 g dehgiew ot 0.001 g )VI( fo eht tset Y = eht mass ni grams fo eht ,elbicurcssalg
elpmas ot eht toh cmiffarap lio and start a gnimit .ecived = eht mass ni grams fo eht glass elbicurc
Y
ritS ylsuounitnoc rof yltcaxe 15 ,setunim neht ekat eht plus ,eudiser
rekaeb tuo fo eht bath. looC eht cinifarap lio ruhplus-
W = eht mass ni grams fo eht tset ,noitrop and
erutxim ot moor erutarepmet ni a dloc retaw bath
= tnecrep laitini elbulosni sulphur.
gnirrits .ylsuorogiv nehW ,dloc add 30 cc fo SW
eneulot )2.2.2-B( and rits .llew tnaceD eht cinrffarap
tnevlos/lio erutxim hguorht a derat der&nis ytisorop B-5 CARBON DISULPHIDE -
04P glass retlif elbicurc ),VI( using a noitcus ;ksalf wash ALTERNATIVE PROCEDURE
eht sulphur eerht semit htiw 35 cc snoitrop fo eneulot ( METHOD 2 )
and wolla ot stand rof 15 setunim retfa hcae wash
B=S.l Reagents
erofeb .gnitnaced Using a spatula, hsurc yna lumps fo
sulphur that yam eb dnuof ni eht ;rekaeb refsnart all B-5.1.1 .liociniffaraP suocsiv lacituecamrahp ,edarg
eht elbulosni sulphur ylevitatitnauq otni eht deretnis cimanyd ytisocsiv retaerg than 120 .Pc
glass elbicurc and wash 10 semit htiw small tnuoma fo
.eneulot 2.1.5-B Carbon Disurphide - tnegaeR edarg ees(
.)etoN
NOTE - The sample must never he sucked completely dry NOTE - Carbon disulphide is a very noxious, toxic and
before the last washing because reversion can occur due to the inflammable solvent, therefore, take special safety precautions,
icing of the insoluble sulphur. including the use of a fume hood.
yletelpmoC evomer all eht eneulot yb ,noitcus and 2.5-B Procedure
hsinif eht gniyrd yb gnicalp eht glass elbicurc ni eht ehT erudecorp is yltcaxe eht emas as eht ecnerefer
nevo ni a emuf draobpuc at %08 rof 1 h. looC ni a erudecorp tpecxe that nobrac edihplusid is desu
rotaccised and hgiew (W,) daetsni fo .eneulot

4
IS 14127 : 1995
ANNEX C
[Table 1, metI ])iiiv(
DETERMINATION OF OIL CONTENT OF OIL TREATED SULPHUR
C-O PRINCIPLE where
C-O.1 liO si extracted morf the elpmas yb gnisu a w, = the ssam of the tared rekaeb ni ,smarg
tnevlos dna the tnevlos si neht detaropave off dna the
ssam of laudiser lio si .denimreted owT serudecorp are W, = the ssam ni smarg of the tared rekaeb
,deificeps ziv : sulp ,lio
a) thgil muelortep for cibmohr elbulos ,ruhplus 0.2525 the noitartnecnoc eud ot the ytilibulos
dna of ruhplus ni thgil ,muelortep dna
)b ruhplus detarutas enaxeh for elbulosni
w, = the ssam ni smarg of the test .noitrop
.ruhplus
2-C RUHPLUS DETARUTAS ENAXEH
C-l LIGHT PETROLEUM PROCEDURE
NOITULOS DOHTEM ( DOHTEM II )
( METHOD I )
1.2-C stnegaeR
C-l.1 Reagents
C-1.1.1 thgiL muelortep 07-53 htiw a eudiser no 1.1.2-C A noitulos of ruhplus detarutas enaxeh
noitaropave of ton greater naht 0.001 g/100 .lm prepared yb gnidda 60 g of cibmohr elbulos ruhplus
ot 4 sertil of enaxeh dexim llew dna dewolla ot dnats
2.l-C erudecorP for 24 h erofeb esu ot wolla excess ruhplus ot llaf ot
the mottob of the .lessev esU ylno the raelc
hgieW tiioba 10 g ),W( of test elpmas yletarucca no tnatanrepus .diuqil
0.001 g otni a ediw dehtuom 250 cc lacinoc ,ksalf ot
hcihw add yb ,ettepip yltcaxe 100 cc of thgil muelortep 2.2-C Procedure
(C-1.1.1). Stopper dna wolla ot dnats at moor
erutarepmet for 30 setunim gnilriws the ksalf yreve 5 hgieW 5 f. 0.1 g of test elpmas (w) otni a lm-)x2 lacinoc
.setunim tnaceD lm-57 lio the noitulos otni a 100 cc ksalf ot hcihw add 25 cc of raelc tnegaer noitulos
rekaeb gnirusne that on selcitrap of ruhplus are .)1.1.2-C( niatniaM tnatsnoc erutarepmet tuohguorht
tneserp dna ettepip lm-05 of siht noitulos otni rehtona siht stage of the .erudecorp Shake for OI setunim dna
lm-ool .rekaeb etaropavE off the tnevlos morf siht neht retlif hguorht a tared (W,) deretnis ssalg retlif
lm-OS of noitulos yb gnicalp the rekaeb ni a water htab elbicurc dna wash the eudiser htiw 100 lm of the raelc
ni a emuf .draobpuc evomeR the rekaeb tnorf the tnegaer noitulos .)1.1.3-C( hsaW the eudiser eciwt

water htab dna wolla ot looc ot moor .erutarepmet htiw 25 lm of lyhte .lohocla

Extract the eudiser htiw 2 lm of thgil ,muelortep
gnirusaem the tnevlos morf a etterub dna gnidda ti ni yrD the retlif elbicurc sulp eudiser for 1 h at 8O*C ni
hcus a yaw that the sedis of the rekaeb are washed na nevo ni a emuf ,draobpuc looc ni a rotaccised dna
.nwod lriwS the rekaeb yltneg ot esrepsid the eudiser hgiew (W,).
htiw the .tnevlos tnaceD the noitulos otni a tared ),W(
lm-05 .rekaeb 3.2-C Calculation and Expression of Results
Repeat the noitcartxe eciwt gnitcelloc lla the sgnihsaw etaluclaC the egatnecrep lio tnetnoc gnisu the
ni the lm-OS .rekaeb etaropavE off the tnevlos ni a gniwollof noitauqe :
water htab dna neht ni na nevo at C°08 for 1 h ni a
emuf .draobpuc looC ni a rotaccised dna neht hgiew (W + ,w - W,) x 001
yletaidemmi .),W( tnecreP lio =
W
3.l-C Calculation and Expression of stluseR where
etaluclaC the egatnecrep lio tnetnoc gnisu the
gniwollof :noitauqe w, = the ssam ni smarg of the ssalg ,elbicurc
= the ssam ni smarg of the ssalg elbicurc
w*
,W(2 - )*VI x 100 sulp ,eudiser dna
tnecreP lio = - 0.25
3w W = the ssam ni stnarg of the test .noitrop