IS 2543: Cellulose Secondary Acetate materials for Moulding and Extrusion

17 Pages·1995·1.6 MB·English

by  Bureau of Indian Standards

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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”
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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 2543 (1995): Cellulose Secondary Acetate materials for
Moulding and Extrusion [PCD 12: Plastics]
“!ा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”

Indian Standard
CELLULOSE SECONDARYACETATEMATERIALS
FORMOULDINGANDEXTRUSION-
SPECIFICATION
(First Revision)
UDC 720*445*876

8 BIS 1995
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
Jdy 1995 ecirP puorG 6
-
scitsalP lanoitceS ,eettimmoC PCD 12
FOREWORD
sihT naidnI dradnatS ( tsriF noisiveR ) was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard
dezilanif yb eht scitsalP lanoitceS eettimmoC had neeb devorppa yb eht ,muelorteP laoC and detaleR
stcudorP noisiviD .licnuoC
esolulleC etateca gnidluom slairetam era rof’elbaton rieht gnidnatstuo ,ssenhguot hgih tcapmi ,htgnerts
wol ,ytilibammalf esae fo gnidluom and .noitacirbaf ecniS eht cisab lairetam is ,sselruoloc selcitra nac
eb dedluom revo a ediw egnar fo hcir suortsul .sruoloc tI is desu rof making ,syot ,sbmoc ,sdaeb
yreltuc ,seldnah ,sbonk lacirtcele parts, elbatceps ,semarf brush ,skcab ,seldnah .cte
sihT standard was tsrif dehsilbup ni 1964 and was ylegral desab no SB 5591-4251 noitacificepS‘ rof
esolullec etateca gnidluom ,slairetam issued yb eht hsitirB Standards ,noitutitsnI ,KU hcihw has ecnis
neeb .desiver nI this noisiver stnemeriuqer rof tlem wolf etar ( xedni ) and taeh ytilibats .dedulcni
tnereffiD slairetam evah neeb dedarg gnidrocca ot rieht tlem wolf .etar ehT sdohtem fo stset derrefer
ot ni this noisrev evah osla neeb deifidom gningila as raf as elbissop htiw eht tset sdohtem dehsilbup
yb eht lanoitanretnI noitazinagrO rof noitazidradnatS .)OSI( rehtruF eht eltit has neeb degnahc ot
esolulleC‘ yradnoces etateca gnidluom and noisurtxe ’slairetam as this standard slaed htiw -omreht
plastics edam tuo fo esolullec yradnoces etateca fo enoteca elbulos .egnar esolulleC etateca gnivah
lyteca eulav ( desserpxe as latot denibmoc ytidica as citeca dica tnecrep m/m ) neewteb 53.5 and 56.5
tnecrep m/m ylno is elbulos ni enoteca .tnevlos nI tcaf eht ylluf detalyteca ,esolullec dellac esolullec
,etatccairt htiw lyteca seulav fo 61.5 f 0.5 tnecrep ( yllaciteroeht 62.5 tnecrep ) is elbulosni ni
.enoteca ,gnihtynA ,erofereht woleb esolullec etatecairt ( htiw tcepser ot lyteca eulav ) is demret as
esolullec yradnoces .etateca ,revewoH neve ni esolullec yradnoces etateca gnivah lyteca eulav neewteb
53.5 ot 56.5 tnecrep )m/m( is desu rof esolullec etateca citsalp .erutcafunam
sihT noisiver sniatnoc emos stnemeriuqer ni elbaT 1 and sesualc 5.3, 5.5 and 5.7 hcihw llac rof an
tnemeerga neewteb eht resahcrup and eht reilppus and hcihw stimrep eht resahcrup ot esu noitpo rof
noitceles ot suit his .stnemeriuqer
roF ,ssenenif SI seveis gnimrofnoc ot SI 460 : 1978 noitacificepS rof tset ’seveis era ,deificeps erehw
eseht seveis era ton ,elbaliava rehto tnelaviuqe standard seveis as degduj yb eht erutrepa yam eb .desu
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 -ingis
tnacif secalp deniater ni eht dednuor ffo eulav dluohs eb eht emas as that fo eht deificeps eulav ni this

standard.
IS 2543 : 1995
Indian Standard
CELLULOSESECONDARYACETATEMATERIALS
FORMOULDINGANDEXTRUSION-
SPECIFICATION
(F irst Revision ).
1 SCOPE SI 2828 : 1964 dna the gitiwollof llahs .ylppa
sihT dradnats sebircserp the stnemeriuqer dna the 3.1 esoiulleC Acetate
methods of sampling and test for cellulose secondary
acetate uiouldiug and extrusipu materials, haviug Aa citeca dica ester of esolullec gnidulcxe( dexim
ester).
acetyl value between 53.5 to 56.3 percent, with or
without the addition of dyes and pigments. 3.2 Cellulose Acetate Moulding and Extrusion
2 NORMATIVE REFERENCES Materials
The gniwollof sdradnats niatuoc snoisivorp ,hcihw A citsalpomreht noitisopmoc ni ralunarg ,mrof elbapac
hguorht ecuerefer ni siht text, etutitsnoc snoisivorp of of gnieb shaped yb heat dna ,erusserp dua gnitsisuoc of
siht .dradnats tA the emit of ,noitacilbup the suoitide esolullec acetate dednuopmoc htiw euo or erom -salp
srezicit dua llams suoitroporp of other .stneidergni
detacidui were .dilav llA sdraduats are tcejbus ot
uoisiver dua seitrap ot stuemeerga desab siht -dnats
OII 3.3 wolF Temperature
ard are degaruocue ot etagitsevni the ytilibissop of
gniylppa the tsom tnecer snoitide of the sdraduats -idni The erutarepmet at hcihw a citsalpomreht lairetam
cated :woleb sniatta a deuited degree of wolt uehit detcejbus ot
debircserp erusserp for a debircserp emit ni a deificeps
S/ No. Title
uoisurtxe .dluom
170 : 1986 enotecA ( third revision )
4 GRADES
768 : 1982 Method for guitaulave eguahc ui
ruoloc (first revision ) erehT llahs eb evif grades of ,slairetam :yleman
:4542 1985 Methods for uoitaninireted of a) edarG A‘ - yrev ;tfos
ruoloc sseutsaf of elitxet slairetaiu )b edarG B - ;tfos
ot .laicifitra thgil noneX( pmaL ) c) edarG C - ;muidem

tsrif( revision ) d) edarG D - ;drah dua

2530 : 1963 Methods of test for euelyhteylop e) edarG E - yrev hard.
gnidluom slairetam dna
enelyhteylop sdnuopmoc 5 REQUIREMENTS
2584 : 1963 Methods of test for cirtcele
5.1 Description
htguerts of dilos gnitalusni
slairetam at power seicueuqeif The lairetam llahs eb of nnofiuu noitisopmoc dua llahs
nnofuoc ot the stnemeriuqer uevig ni elbaT 1 uehw
8543 (Part 41 Methods of gnitset scitsalp : Part 4
gnidrocca,detset ol the sdohtem nevig ni co1 8 dua 9 of
Set 1) : 1984 Short mret lacinahcem ,seitreporp
the .elbat
uoitceS 1 uoitauinneteD of elisuet
seitreporp 5.2 Fineness
13360 (Part /6 scitsalP - Methods of :gnitset Part 6
Not erom uaht 5 luecrep of the lairetam llahs pass
Set 1) : 1992 lamrehT ,seitreporp uoitceS 1 latiV
gniuetfos erutarepmet fo scitsalp hguorht 8.50 suorcim SI .eveis
ETON - ehi‘ lairetam llahs yllamron eb deilppus free
13411 : 1992 ssalG decrofuier retseylop hguod
morf elbanoitcejbo .seitirupmi
gnidluom sdnuopmoc (DMC)
:39131 1992 enelykiayloP setalahthperet TEP( & 5.3 Burning Behaviour
)TBP for gnidluom dua uoisurtxe
ehT )egareva( rate of gninrub of the lairetam (three test
suenhceps (150 nnn )mm llahs tou exceed S7
3 TERMINOLOGY x 13
uinhnun nehw tested ui ecnadrocca htiw xennA C of
roF the esoprup of siht dradnats the suoiliuiled ni&evig SI 13193 : 1992.
1
IS 2543 : 1995
Table 1 Requirements for C&dose Secondary Acetate Moulding Materials
( Clause 5.1 )
SI Characteristics Requirements Methods of Annex
No. Test, Ref to OfThis
Clause No. and Standard
Grade A Grade B Grade C Grade D Grade E IS No.
(1) (2) (8) (9)
(3) (4) (5) (6) (7)
-
9 Flow temperature, ‘C 108 to 123 to 138 to 153 to 168 to A
122 137 152 167 180
ii) Impact strength, J/?vl 1) 180 150 120 50 Annex E of IS _.
:
13411 1992
using specimen 3
with notch A
iii) Tensile strength, N/mm*, Min 15.2 20.7 27.6 8543 (Part 4/Se.c -
:
1) 1984 using
Type 3
iv) Detlection underload, mm, Max 50.0 40.0 35.0 ‘) Test sped men -
Annex H of IS
:
13411 1992
v) Viscosity change on moulding, 40 40 40 50 50 - B
percent, MUX
vi) Moisture absorption, percent by 1) 4.5 5.0 5.5 1) Annex D of IS -
:
weight, MUX 13411 1992
(Method 1)
vii) Loss in weight on leaching, 6.0 4.0 3.0 1) Annex D of IS -
percent by weight, Max 13411 : 1992
Method 2)
viii) Moisture content*), percent by 1.8 1.8 1.8 1.8 1.8 - C
weight, MUX

ix) Loss in weight on heating, 6.0 4.0 3.0 li - D
percent by weight, MUX
x) Melt flow rate (MFR) g/IO min >I5 8 to 3 to 8 1.5to3 0.5 to 7 of IS 2530 : -
15.0 1.5 1963 using test
temperalure ol
200” * 0.5?
xi) Heat stability/ not to exceed the 5 3 2 I 1 -
corresponding melt Bow index by
‘)
To be ag7r eed between the purchaser and the supplier.
2, Moulding materials complying with this clause is not necessarily suitable for use without predrying. Predrying is
accomplished by heating in a vented oven at 70 * 2”c’for 2 h with the material in layers I3 mm thick, in shallow trays.
‘) Method of test to be agreed between the purchaser and the supplier.

-
SI 2543 : 1995
5.4 Colour Bleeding ehT suetuiceys llahs eb tuc morf the dedluom sheet. ehT
edges of ebt suenticey llahs uebt eb dehtooms ot the
erehT llahs eb ou guiuiats of the retlif paper uehw the ezis ,deriuqer dua llahs eb free morf Rows. retfA guieb
lairetam si tested yb the dohtem debircserp ni xemA E. dedluont dna except uebw gnieb ,denihcam ebt sheets
dua suemiceps llahs eb stored ni a rotaccised revo
5.5 Colour Fastness to Light suordybua muiclac .edirolhc
The ruoloc sseutsaf ot thgil of ebt lairetam llahs eb as
agreed ot ueevheb the resahcrup dua the reilppus nehw
ehT suemicepstset llahs eb w&d ylluferac htiw rebif paper
tested yb the dohtem debircserp ni xeuuA .F
erofeb .guinoitiduoc ehT snemiceps llahs eb deuoitiduoc
5.6 Electric Streugth yletaidemmi erofeb yua test yb gnicalp ti for 48 b ui a desolc
,rebmahc deniatniam at 65 f 5% RH dua a erutarepmet of
ehT lairetam llahs show ou ugis of ,gnittilps ,gniretsilb 27 + 2OC. ehT snemiceps llahs eb detroppus ui hcus yaw.a
uoitargetuisid or elbaicerppa guiyraw uebw tested ni that as egral as area as elbissop si exposed.
ecuadrocca htiw SI 48S2 : 1963.
ebT doirep ueewteb lavomer dna the start of the test
llahs tou exceed 3 .nim
5.7 Vicat Softening Temperature
8 PACKING AND MARKING
The gninetfos erutarepmet of the lairetam llahs eb as
agreed ot uccwteb the resahcrup dua the reilppus uebw 8.1 lairetamehT llahs eb packed ni a desolc-llew ,sreniatnoc
tested ni ecnadrocca htiw SI 13360 (Part teS/6 1) : as agreed ot ueewteb the resahcrup dna ebt .reilppus
1992.
8.2 Each reuiatuoc dna package llahs eb ylraelc
dekram htiw the :gniwollof
6 I’REl’AlUTION OF TEST SPECIMENS
a) uoitaciduI of ebt ecruos of erutcafunam dna
Sheets for cbt noitcudorp of (0.150 f 0.005 )hcni deziagocer ,kram-edart fi ;yea
3.75 2 S21.0 IIMII kciht for uiatrec of the tests set tuo ni )b emaN dna grade of the ;lairetam
siht draduats llahs eb prepared yb noisserpmoc -dluom c) htuoM dna raey of ;erutcafunam
.gui erugiF 1 shows a elbatius epyt of .dluom ehT sheets
d) Net ;ssam dua
llahs tou he dehsinif yb ecafrus guiuibcaut hcus as
e) Batch No. or Code No.
guideas or .guihsinif
ehT guidluotu lairetam llahs eb deird-erp yb gnitaeh ui 8.3 BIS Certification Marking
a dctuev uevo at 70 z 2OC for 2 b htiw the lairetam ui ehT sreniatnoc dua packages yam osla eb dekram btiw
sreyal 13 tutu ,kciht ui wollahs .syart draduatS Mark.
A elbatius ytitnauq of the deird-erp guiddmu lairetam 83.1 ehT esu of ebt draduatS Mark si denrevog yb the
cb dedaol otni the ,dluom hcihw llahs eb at a slroisivorp of uaeruB of naidnI sdraduatS ,tcA 1986 dna the
~ball
crutarep~uet of 190 c- .C°5 tcatuoC erusserp llahs eb seluR dua snoitalugeR edam .reduuerebt ehT sliated of
deilppa for a gnitaeh-ery doirep of 2 .nim ehT guilooc suoitiduoc redurt hcihw the ecuecil for the esu of draduatS

dua. lluf guidluom erusserp llahs eb .deilppa ebT -dluoni Mark yam eb detuarg ot srerntcafuuam or yam’srecudorp
gib erusserp llahs rb tou ssel uabt 7.75 MPa uo the eb deuiatbo nrob the uaeruB of uaidnI .sdradnatS
detcejorp aeraguidluom dua ti llahs eb deniatuiaiu lituu
the trrbs si ylturiciffus digir for noitceje tuobtiw -rofed 9 SAMPLING
.uoitatu ehT rate of guilooc llahs eb hcus that the ehT dohtem of gniward evitatneserper selpmas of the
erutarepluet 2 uitu after the tesuo of guilooc si at tsael lairetam dua the airetirc for ytimrofnoc liahs eb as
C°03 woleb the guidluotu .erutarepmet debircserp ni xennA .G
51 3452 : 5991
a) Flat plate 1.5 mm thick of stainless steel or nickel-plated steel
polished on the lower surface
b) Stainless steel moiAding template, 1.5 mm thick

c) flat plate, 1.5 mm thick, of stainless steel or nickel-plated steel
polished on the upper surface
FIG. 1 MWLD
4
SI 2543 : 1995
AXENNA
[
Table 1, S1No. )i( ]
NOITANIMRETED FO WOLF EKJITAREPMET
l-A ENILTUO FO EHT DOHTEM erom uaht .mm/C”l ,ylevitauretlA elbatius Acirtcele
suaem of erutarepmet tuemerusaem yam eb .desu
wolF erutarepmet si deuimreted yb guitcejbus the test
nemiceps ot debircserp erusserp for a debircserp emit
ni a deificeps uoisurtxe dluom so that the wolf si 2.5
.mm
2-A NOITARAPERP FO TSET NEMICEPS
ehT test uemiceps llahs eb ni the mrof of a rednilyc
)tellep( 9.5 * 0.5 mm ni thgieh dua 9.5 + 0.0 mm ui
retemaid dna llahs eb prepared as uevig ui 1.2-A
dua .2.2-A
1.2-A ehT gnidluom lairetam llahs eb deird-erp yb
gnitaeh ni a detuev uevo at 70 +- 2OC for three sruoh ni
sreyal of 15 mm ,kciht ui wollahs .syart
2.2-A Load a elbatius ytituauq of the deird-erp -dluom
gni lairetam otui the ,dluom hcihw llahs eb at a -arepmet
erut lauqe ot sdriht-ruof of the wolf erutarepmet of the
lairetam ni OC. tcatuoC erusserp llahs eb deilppa for a
gnitaeh-erp doirep of two .setunim uehT ylppa guilooc
dna lluf guidluom .erusserp ehT guidluom erusserp
llahs tou eb ssel uaht 75 *mc/gk uo the detcejorp
gnidluom area dua ti llahs eb deuiatuiam lituu the sheet
si yltneiciffus digir for uoitceje tuohtiw .noitamrofed
ehT rate of guilooc llahs eb hcus that the ,erutarepmet
two setunim after the gnilooc si at tsael C°03 woleb the
guidluom .erutarepmet ehT dedluom uemiceps llahs
eb stored ni a rotaccised revo suordyhna muiclac
.edirolhc

3.2-A gninoitidnoC

noitiduoC the test snemiceps at 27 + C°2 dua 65 2 5
tuecrep evitaler ytidimuh for at tsael 48 h dua tcuduoc FIG.2 APPARATUFSO RD EERMINAXONO FF low
the tests ni the emas .erehpsomta TEMPERATLTRE
3-A SJITARAPPA
3.3-A Charge Chamber
ehT sutarappa ( see .giF 2 ) llahs tsisuoc yllaitnesse of
A charge rebmahc (C) woleb dua cirtnecuoc htiw the
the gniwollof parts.
so+
,ecifiro 9.70_,, mm ni retemaid dua 19 mm ni .htgnel
1.3-A Oritice
A ylhgih dehsilop lacitrev ecifiro 3.175 + 0.025 mm ni A-3.4 Block
retemaid dua 38.10 2 0.25 mm ni htguel )A( g&nur
A heated kcolb (E) guivah a good lamreht tcatnoc htiw
guola the sixa of a tilps euoc 25 mm ni retemaid at the
the .euoc
regral .dne ehT enoc si depmalc otui a heated .)B(kcolb
tI si evitarepmi that the tif of the euoc si hcus that on
elbaicerppa hsalf lliw rucco rehtie at the tilps or at the 5.3-A Ram
.redluohs A retemomreht eloh 32 mm ni depth dna tou
A heated mar (D) so deguarra that ti seilppa erusserp ot
gnideecxe 5 mm ni retemaid si dellird otui eno flah of
the tellep ni the charge rebmahc gnicrof the lairetam
the tilps .euoc
otni the .ecifiro ehT retemaid ofthe mar si ueewteb 0.05
2.3-A Themlometer dua 0.12 mm ssel uaht that of the charge .rebmahc ehT
guitaeh of the kcolb dua mar si deguarra so as ot lortnoc
elbatiusA esolc guittif ssalg-ni-yrucrem 32 mm -remmi
uois retemomreht guivah a erutarepmet elacs of tou the erutarepmet htiw .C“5.02
5