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IS 6345 (1996): Methods of sampling of coal for float and
sink analysis [PCD 7: Solid Mineral Fuels]
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IS6345:1996
Indian Standard
‘
METHODS FO GNILPMAS FO LAOC ROF TAOLF
AND KNIS SISYLANA
(First Revision )
ICS 75.160.10
Q BIS 1996
BUR-EAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
April 1996 Price Group 2
diloS lareniM sleuF lanoitceS ,eettimmoC DCP 7
EROF DROW
sihT naidnI dradnatS tsriF( )noisiveR was adopted yb the uaeruB of naidnI ,sdradnatS after the draft
dezilanif yb the diloS lareniM sleuF lanoitceS eettimmoC had neeb devorppa yb the ,muelorteP laoC dna
detaleR stcudorP noisiviD .licnuoC
sihT dradnats was tsrif dehsilbup ni 1971. ehT eettimmoC elbisnopser for sti noitaraperp dediced ot
etadpu ti ni the thgil of ecneirepxe deniag ni the .yrtsudni nI the tneserp noisrev tsrif( )noisiver muminim
ssam of gross selpmas of raw ,laoc y-rehsaw stcudorp dna that of yrotarobal selpmas htiw sliated of ezis
egnar of selcitrap dna gnidnopserroc muminim rebmun of stnemercni gniniatrep ot evisneherpmoc test
dna enituor test evah neeb deifidom ni ecnadrocca htiw rieht ytilibatius for taolf dna knis sisylana of
naidnI .slaoc
sihT dradnats for gnilpmas of laoc for taolf dna knis sisylana si dedeen ot niatbo elbadneped cisab data
rehtie for gningised of yrehsaw or for gnissessa sti ycarucca dna noisicerp of the ecnamrofrep of a yrehsaw
dna ycneiciffe of yna laudividni gnihsaw .tnempiuqe ehT gnilpmas of laoc for lacimehc sisylana hcihw si
ylraelc denifed ni SI 436 (Part teS/l 1) : 1964 ‘Methods for gnilpmas for laoc dna :ekoc Part 1 gnilpmaS
of ,laoc noitceS 1 launaM gnilpmas ’)desiver( dna SI 436 (Part teS/l 2) : 1976 ‘Methods for gnilpmas of
laoc dna :ekoc Part 1 gnilpmaS of ,laoc noitceS 2 lacinahceM ,’gnilpmas yllacisab reffid a tol for gnilpmas
of laoc of taolf dna knis .sisylana
lacimehC sisylana seriuqer snoitatneserper of selpmas for suoirav sretemarap hcus as ash, ,erutsiom elitalov
.rettam etc, htiw denifed stimil of .ycarucca ,revewoH ni case of taolf dna knis sisylana htob ezis dna
cificeps ytivarg noitisopmoc osla deen ot eb detneserper htiw .ycarucca hcihw has tcapmi no the ngised
factors dna yllanif the cost of the .yrehsaw
nI gniraperp siht dradnats ecnatsissa has neeb devired morf SA 2617 : 1983 ediuG‘ for the gnikat of
selpmas morf hard laoc smaes in-situ ‘, dehsilbup yb sdradnatS noitaicossA of ailartsuA )AAS( dna 0SI
7936 : 1992 ‘Hard laoc ~~- noitanimreteD dna noitatneserp of taolf dna knis scitsiretcarahc ~ lareneG
noitcerid for sutarappa dna ’serudecorp yb~dehsilbup the lanoitanretnI noitazinagrO for noitazidradnatS
.)OSI(
roF yna evisneherpmoc taolf dna knis test, the muminim ssam detalupits ni the tneserp dradnats tsrif(
)noisiver mrofnoc ot niatrec derised degree of .ycarucca mumixaM noitaived of 2 tnecrep ni the ssam of
yna cificeps ytivarg noitcarf neewteb selpmas si yllareneg expected revo the lamron egnar of cificeps
ytivarg sdiuqil deyolpme for taolf dna knis sisylana of naidnI .slaoc tI ,dluohs ,revewoh eb dootsrednu that
erem ecnerehda ot the muminim ssam of elpmas as debircserp ni siht dradnats lliw ton erusne the degree
of ycarucca as deificeps evoba sselnu sliated of the erudecorp for gniyrrac tuo taolf dna knis sisylana are
dewollof pu .ylsuolucitem sihT tniop has neeb ylralucitrap deciton morf a lacitsitats sisylana of the stluser
of taolf dna knis tests deirrac tuo yb tnereffid .seirotarobal
nI gnitroper ehI stluser of sisylana edam ni ecnadrocca htiw siht ,dradnats fi the lanif ,eulav devresbo or
.detaluciac si ot eb dednuor off. ti llahs eb enod ni ecnadrocca htiw SI 2 : 1960 seluR‘ for gnidnuor off
laciremun seulav .‘)desiver(
IS 6345 : 1996
Indian Standard
METHODS FO GNILPMAS FO LAOC ROF TAOLF
AND KNIS SISYLANA
(
First Revision)
1 SCOPE 4.1.2 nI case ti si yrassecen ot tcelloc selpmas morf
each ,ecruos yreve 1 000 sennot or ssel of laoc llahs
1.1 sihT dradnats sebircserp the sdohtem of gnilpmas etutitsnoc a .tol roF the esoprup of siht ,dradnats a
of laoc taolf-rof dna knis sisylana for the esoprup of
’ecruos‘ llahs naem laudividni maes ni a ralucitrap
gnitaulave the ytilibahsaw scitsiretcarahc of laoc dna
.yreilloc
ycneiciffe of gnihsaw .stnempiuqe
4.2 Gross Samples
2 NORMATIVE REFERENCES
4.2.1 Raw Coal
ehT gniwollof sdradnats niatnoc snoisivorp ,hcihw
hguorht ecnerefer ni the text, etutitsnoc snoisivorp gnidnepeD no the top ezis of the laoc ni the evitcepser
of siht .dradnats tA the emit of noitacilbup the snoitide ezis ,segnar gross selpmas of the muminim ssam as
detacidni were .dilav llA sdradnats are tcejbus ot debircserp ni elbaT 1 llahs eb .nward ehT rebmun of
noisiver dna seitrap ot tnemeerga desab no siht dradnats stnemercni dna the muminim ssam of stnemercni llahs
are degaruocne ot etagitsevni the ytilibissop of osla eb as debircserp ni elbaT 1. nI enim-fo-nur slaoc
gniylppa the tsom tnecer noitide of the sdradnats detsil gniniatnoc selcitrap of revo 200 ot 400 .mm the
:woleb muminim ssam of a gross elpmas dluohs eb 5 000 kg.
.OXSI Title 4.2.2 Washery Products/Plant Products
436 Methods for gnilpmas of
laoc dna :ekoc roF naelc ,laoc ,gnilddim knis/stcejer selpmas the
muminim ytitnauq yam eb desaercni naht that of raw
( Part teS/l 1 ) : 1964 Part 1 gnilpmaS of ,laoc
,laoc fi so detnarraw ni cificeps cases of ,noitarapes
noitceS 1 launaM
ot erusne that etauqeda stnuoma of decalpsim slairetam
gnilpmas ( revised ) are elbaliava ni yna evitaler ytisned ,noitcarf so that
( Part teS/l 2 ) : 1976 Part 1 gnilpmaS of ,laoc derised degree of ycarucca si morf~deniatbo the tests.
selpmaS dluohs eb nekat as noos as elbacitcarp after
noitceS 2 lacinahceM
the lairetam sevael the gninaelc tinu ni order ot
gnilpmas
eziminim .egakaerb
3810 yrassolG of smret gnitaler
nehW a neercs sisylana of a tnalp tcudorp si edam ni
ot dilos larenim :sleuf
noitcennoc htiw a gninaelc tnalp ycneiciffe test, ti lliw
( Part 1 ) 1977 Part 1 laoC dna sti eb dnuof that there si emos lairetam woleb the lanimon
noitaraperp tsrif( revision) mottob ezis gnieb treated ni the gninaelc .tinu ehT
ssam dna elcitrap ezis egnar of siht ezisrednu lairetam
( Part 2 ) : 1977 Part 2 laoC gnilpmas dna
dluohs eb recorded.
sisylana
nI gnilpmas ,plup senif woleb 0.5 ,mm the ssam of the
3 TERMINOLOGY
)deird( sdilos llahs ylpmoc htiw the stnemeriuqer of
3.1 roF the esoprup of siht dradnats the snoitinifed elbaT 2. stnemercnI tsum eb nekat at raluger emit
nevig ni 2 of SI 436 (Part eeS/l 1) : 1964 llahs .ylppa slavretni revo the latot cross noitces of the plup maerts
rehtie yllaunam or yb lacinahcem ,snaem gnisu a
3.1.1 oS far as the snoitinifed of ezis grades of laoc gnilpmas ecived gnivah a yticapac lauqe ot at tsael eciwt
are ,denrecnoc the ygolonimret adopted ni SI that of the dednemmocer muminim ssam .tnemercni
:)ltraP(0183 :)2traP(0183SIdna7791 llahs7791 Care dluohs eb desicrexe ni order erusneot that enon
.ylppa of the elpmas si tsol yb .gnihsalps
4 GROSS -SAMPLES FOR FLOAT AND SINK A evisneherpmcc gninaelc tnalp ycneiciffe test
ANALYSIS sevlovni citametsys ssam ecnalab of lla slairetam
gniretne dna gnivael the .tnalp nI siht case the ssam
4.1 Lot dna erutsiom tnetnoc of the raw feed, the ssam dna
4.1.1 rbF yrehsaw laoc where the feed si dednelb the erutsiom tnetnoc as deviecer of lla denaelc ,stcudorp
latot ytitnauq of laoc elbaliava gnirud a fo’tfihskrow 8 ,dracsid etc, dna the emulov dna sdilos tnetnoc ni the
sruoh llahs etutitsnoc a .tol morF each tol eno gross tneulffe lliw eb .deriuqer ehT ssam of lla slairetam si
elpmas llahs eb .nekat detaluclac ot a mrofinu ria deird erutsiom sisab dna
SI 6345 : 1996
Table 1 Minimum Mass of Gross Sample of Raw Coal
( Clause 4.2.1 )
IS .oN eziS of Coal, mm Minimum No. Minimum Mass Minimum Mass
of Increments of Increments of
Gross / Sample
kg kg
(2) (3) (4) (5)
ynA CXIS evoba 002 25 80 2 000
ro.57/001-002 yna ezis edarg gnwah pot ezis fo selcitrap 002 25 60 1 500
05-57/001 ro yna ew edarg gmvah pot ew fo selcitrap 57 mm 25 40 1 000
.52-05 ro yna xrs gnivah pot ezis fo selcitrap fo 05 mm 25 20 500
l-52 3 ro yna ezis gnivah pot ezis fo selcitrap fo 52 mm 25 01 250
h-31 10 yna ezis gnivah pot ezis fo selcitrap fo 31 mm 25 2 50
3-6 ro yna ezis gnivah pot ezis fo selcitrap fo 6 mm 15 1 51
l-3 5. ro vna ezis gnivah pot ezis fo selcitrap fo 3 mm 51 53.0 5
I O-5. 5 ro yna ezis gnivah pot ezis fo selcitrap fo 5.1 mm 51 51.0 2
wolell 5.0 51 70.0 1
NOI’I~ dradnatS erauqs eloh sneercs ot eb desu ot peek ytimrofinu htiw eht lairtsudni .ecitcarp
the feed gniretne dna stcudorp gnivael the tnalp are erehW tnemercni ssam detcelloc yb na citamotua
decnalab tsniaga each other. ehT ycneiciffe of the relpmas si erom naht the muminim ssam debircserp
gninaelc tnalp si assessed morf the ’lautca dna ni siht ,dradnats regral ssam of gross selpmas naht those
laciteroeht sdleiy dna grades. ehT sisylana of the raw deificeps ni siht dradnats yam eb .nekat nI on case the
feed tliub pu yb the noitatupmoc morf the sessam dna muminim ssam of na tnemercni llahs eb ssel naht that
sisylana of lla the stcudorp si erom elbailer naht that deificeps ni the .selbat
deniatbo yb tcerid noitanimaxe dna ti si therefore desu
for the noitaluclac of the laciteroeht .sdleiy 5.2.1 nI case the citamotua srelpmas are ton elbaliava
for the noitcelloc of selpmas ni a ,tnalp selpmas yam
eb detcelloc morf royevnoc tleb or yna other
5 YROTAROBAL SELPMAS ROF TAOLF DNA
tneinevnoc tniop htiw the pleh of a scoop or a levohs
KNIS SISYLANA
for hcihw the deliated erudecorp si nevig ni 3.2.1
5.0 General ot 3.2.3 of SI 436(Part teS/l 1) : 1964.
laniF selpmas for taolf dna knis sisylana llahs eb nward 6 GNILPMAS FO LAOC IN-SITU
tuo of the gross selpmas nward for raw laoc dna MAES( )ELPMAS
yrchsnv\ ,stcudorp as debircserp ni elbaT 3.
6.0 General
5.1 Sampling of Run-of-Mine Coal
nI the gninnalp or noitcejorp of a ,yrehsaw ti semoceb
tnim-fo-nuR selpmas llahs eb nward morf sbut dedaol
tiv\ h laoc as elbaliava at daeh-tip or skcurt or snogaw yrassecen ot niatbo deliated noitamrofni no the
ytilibahsaw scitsiretcarahc of slaoc morf suoirav
at the emit of rieht gnidaol or gnidaolnu yb gniwollof
smaes/secruos that desoporp~era ot etutitsnoc the feed
the latncmcrcm erudecorp of .gnilpmas nI the
ot the .yrehsaw lennahC elpmas detcelloc morf a maes
noitcclcs of ,sbut skcurt or snogaw morf a tol morf
rehtie dnuorgrednu or ni a yrrauq sedivorp elbaulav
hcihv\ stnemcrcnl arc ot eb .detcelloc the modnar
data for siht .esoprup ehT gnilpmas erudecorp adopted
noitcclcs crudccorp as debircserp ni xennA A of
ni siht case si etiuq tnereffid morf those dessucsid
SI 436 (Part eeS/I 1) : 1964 dna SI 436
(Part eeS/l 2) : 1976 llahs eb adopted. .reilrae sliateD of siht erudecorp evah neeb denialpxe
ni SI 436 (Part teS/l 1) : 1964.
:ITON selpmaS fo enim-fo-nur laoc morf eht gninnur
maerts llahs eb detcelloc sa debircserp ni IS 436 (Part Ii 6.1 roF yna maes noitces of tuoba 3 m dna evoba m
See I ) 4601‘ and IS 436( traP 1 teS‘ )2 : I Y 67 llahs eh .detpoda ,ssenkciht yllausu a lennahc of snoisnemid ml X
0.4 c llahs eb tuc morf the ylhserf exposed face of
5.2 Collection of Feed and Product Samples from the laoc .maes A elttil revo a enot of laoc si suht
Washing Plant deniatbo as gross .elpmas
In tsom of the .seirehsaw citamotua gnilpmas secived 6.2 fI the ssenkciht of the maes or noitces si ssel
arc elbaliava for the noitcelloc of selpmas morf naht 3 ,m the noisnemid of the lennahc llahs eb so
\_rehsaw feed dna washed stcudorp for enituor lortnoc detsujda as ot niatbo at tsael eno ennot of laoc as gross
no the ecnamrofrep of a .yrehsaw .elpmas
2
Table 2 Minimum Mass of Gross Samples of Washery Products
( Clause 4.2.2 )
Sl No. CSoiazle, o mmf --_ Comprehensive Tests Routine Tests 7
muminiM .oN fo muminiM ssaM fo muminiM ssaM fo muminiM oN fo muminiM ssak fo muminiM ssaM fo
stnemercnI ssorG elpmaS stnemercnI stnemercnI ssorG elpmaS
naelC sgnilddiM naelC sgnilddiM naelC sgnilddiM naelC sgnilddiM
laoc ro sknis laoc ro sknis laoc ro sknis laoc ro sknis
ro stcejer ro stcejer ro stcejer ro stcejer
gk gk gk gk gk gk gk gk
(1) 12( (3) (4) (5) (6) (7) (8) (9) )01( (11) (12)
9 l-002 57100 02 05 57 1 000 1 005 !O 05 05 005 005
ii) 05-571001 02 52 52 005 005 01 52 52 052 052
iii) 05 - 52 02 5.21 5.21 052 052 01 5 5 05 05
w )vi -52 31 02 5 5 001 001 01 3 3 03 03
)v -31 6 02 5.2 5.2 05 05 01 5.2 5.2 52 52
)iv -6 3 01 5.1 5.1 51 51 01 5.0 5.0 5 5
)iiv -3 5.1 01 5.0 5.0 5 5 01 5.0 5.0 5 5
)iiiv 5.1 - 5.0 01 2.0 2.0 2 2 01 2.0 2.0 2 2
)xi woleB 5.0 01 1.0 10 1 1 01 1.0 1.0 1 1
SETON
1 dradnatS erauqs eloh sneercs ot eb desu ot peek ytimrofinu htiw lairtsudni .ecitcarp
2 roF dexim laoc eht rebmun dna ssam fo tnemercni dluohs eb ylbatius detsujda ot niatbo etisiuqer ssam fo ssorg elpmas gnidneped nopu ezis fo laoc
IS 6345 : 1996
7 TRANSPORT AND HANDLING OF SAMPLES of emirp .ecnatropmi elbatiuS snoituacerp .evah
therefore, ot eb nekat at lla stages of gnildnah dna
tI sdeen yldrah eb dezisahpme that ekilnu lacimehc tropsnart of the laoc selpmas detcelloc for taolf dna
,sisylana where the elpmas si syawla decuder ot a enif knis ,sisylana nI gniyrrac tuo neercs sisylana of the
powder. ecnanetniam of proper ezis tsisnoc ni a elpmas selpmas roirp ot taolf dna knis tests. ralimis care has
tnaem for taolf dna knis sisylana si deredisnoc ot eb ot eb nekat ot diova cndnu ezis .noitadarged
Table 3 Minimum Mass of Laboratory Samples for Float and Sink Analysis
( Clause 5.0 )
of
SI No. Size Coal Raw Coal Washery Products
evisneherpmoC Test enituoR Test
naelC laoc sgnilddiM ro sknis naelC laoc sgnilddiM ro sknis
ro stcejer ro stcejer
mm gk gk gk gk gk
(1) (2) (3) (4) (5) (6) (7)
9 57/001-002 1 005 1 000 1 005 005 005
ii) 05-571001 0001 005 005 052 052
iii) 05 - 52 005 052 052 05 05
)vt -52 31 052 001 001 03 03
)v -31 6 05 05 05 52 52
)iv -6 3 51 51 51 5 5
)iiv 3 - 5.1 0.5 0.5 0.5 0.5 0.5
)iiiv 5.1 - 5.0 0.2 0.2 0.2 0.2 0.2
)xi woleB 5.0 0.1 0.1 0.1 1 o. 0.1
ETON - dradnatS erauqs eloh sneercs ot eb desu ot peek ytimrofinu htiw eht lairtsudni .ecitcarp
4
