IS 13114: forged brass gate, globe and check valves for water works purposes

12 Pages·1991·1.3 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 13114 (1991): forged brass gate, globe and check valves
for water works purposes [CED 3: Sanitary Appliances and
Water Fittings]
“!ा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
FORGED BRASS GATE,GLOBE AN-D CHECK
VALVES FOR WATER WORKS PURPOSES-
t
SPECIFICATTON
CDU 621’646’3 [ 669 431-53 ] : 628’1

0 SIB 1991
B-UREAU OF INDIAN STANDARDS
KANAM ,NAVAHB 9 RUDAHAB HAHS RAFAZ GRAM
WEN IHLED 110002

June -1991 ecirP puorG 3
yratinaS secnailppA and retaW sgnittiF lanoitceS ,eettimmoC CED 3
FOREWORD
sihT naidnI dradnatS was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard dezilanif yb eht
yratinaS secnailppA and retaW sgnittiF lanoitceS eettimmoC had neeb devorppa yb eht liviC -reenignE
gni noisiviD .licnuoC
stnemeriuqeR fo reppoc yolla ,etag ebolg and kcehc sevlav derutcafunam yb gnitsac ssecorp era derevoc
ni SI 778 : 1984 noitacificepS‘ rof reppoc ,yolla ,etag ebolg‘ and kcehc sevlav rof retaw skrow sesoprup
hrruof(
revision )‘.
esehT sevlav yam osla eb desu rof rehto sdiulf elbitapmoc htiw eht lairetam fo ,eulav fi os derised yb
eht .resahcrup
tpecxE eht etag ( egdew ) fo etag ,sevlav rehto laitnesse parts hcihw era tcejbus ot raew shall eb -retni
elbaegnahc rof eht emas ezis and epyt fo eht sevlav fo eht emas .noitacificeps
elihW gnicalp eht ,redro eht resahcrup shall hsinruf ni his ,redro/yriuqne eht :gniwollof
)a epyT fo ,evlav
)b lanimoN ,ezis
)c An noitcepsni fo sevlav deriuqer ot eb deirrac tuo yb eht resahcrup erofeb .hctapsed
nI eht noitaraperp fo this standard, assistance has neeb devired morf SB 5154 : 1989 noitacificepS‘ rof
reppoc yolla ,ebolg ebolg pots and ,kcehc kcehc and etag ,’sevlav issued yb eht hsitirB Standards
noitutitsnI ( ISB .)
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.
IS 13114 : 1991
Indian, Standard
DEGROF SSARB ,ETAG EBOLG DNA KCEHC
SEVLAV ROF RETAW SMROW PURPOSES -
NOITACIFICEPS
1 EPOCS largetni seats and dilos egdew epyt ni hcihw eht
etag shall eb eceip-eno and dilos tpecxe rof eht
sihT standard srevoc stnemeriuqer rof degrof
eloh ot etadommocca eht .mets gnipoocS fo eht
brass ,etag ebolg and kcehc sevlav elbatius rof
lairetam morf eht ecaf fo eht etag shall eb -simrep
gnikrow serutarepmet up ot 45°C and kcohs-non
elbis up ot an tnetxe that eht decuder ssenkciht fo
mumixam ciluardyh gnikrow erusserp fo 2MPa rof
eht etag eud ot gnipoocs shall ton eb less than eht
retaw skrow .sesoprup
eulav deificeps ni elbaT 2 rof eht muminim wall
ssenkciht fo .ydob
2 SECNEREFER
ehT naidnI Standards detsil ni xennA A era -secen 6.3 ebolG sevlaV
yras stcnujda ot this standard. ebolG sevlav shall eb fo eht edisni wercs epyt
gnivah tennob-ni-dewercs htiw gnisir mets and
3 YGOLONIMRET
straight ,epyt gnivah largetni taes ni eht .ydob
3.1 roF eht esoprup fo this standard, eht -inifed
6.4 kcehC sevlaV
snoit nevig ni SI 4854 ( traP 1 ) : 1969 and eht
gniwollof shall .ylppa kcehC sevlav shall eb eno fo eht gniwollof sepyt
gnivah ni-dewercs srevoc and largetni seats ni eht
3.2 Nominal Size :ydob
The noitinifed nevig ni SI 9520 : 1980 shall .ylppa )a gniwS Type - rof esu htiw eht sixa fo eht
ydob dne ,strop latnoziroh ro .lacitrev
3.3 End-to-End Dimension ( gniwS kcehc sevlav nac ylno eb desu ni
neewteb eht owt senalp ralucidneprep lacitrev senil nehw eht wolf is ni upward
The distance
ot eht evlav sixa detacol at eht seitimertxe fo eht noitcerid .)
dnesez;! strop fo straight epyt dewercs dne )b Lift Type - htiw csid ro ball kcehc gnivah
yna fo eht gniwollof ydob ngised htiw
ni-dewercs srevoc and largetni :taes
4 LANIMON SEZIS
)i thgiartS ( ro latnoziroh )
lanimoN sezis fo dewercs dne sevlav shall eb as
)ii lacitreV
:swollof
,)4/1(8 Q/3(01 ,)2/1(51 ,)4/3(02 ,)l(52 ,)4/l-1(23 7 SNOISNEMID AND SECNARELOT

(04 1-l )21 and )2(05 .mm 7.1 snoisnemiD

NOTE - ehT lanimon sezis nwohs ni sesehtnarap Wall ,ssenkciht mets ,retemaid ssorca talf htdiw
refer ot eht ezis fo wercs sdaerht gnidrocca ot ro edistuo retemaid fo gnilaes ecaf at sdne and
SI 554: 19x5.
htgnel fo sdaerht at sdne shall eb as nevig ni
5 SLAIRETAM elbaT 2.
5.1 ehT slairetam desu rof eht erutcafunam fo 7.1.1
Chumfeting
tnereffid tnenopmoc parts fo eht sevlav shall
ehT sdaerht at eht start shall eb derefmahc at tsael
mrofnoc ot eht stnemeriuqer nevig ni elbaT 1.
1 mm at an elgna fo yletamixorppa 45” ot eht
6 SEPYT sixa fo eht .daerht ehT retemaid fo refmahc at
eht ecaf gnieb ton less than eht rojam retemaid fo
6.1
General eht .daerht ehT refmahc shall eb cirtnecnoc htiw
sevlaV shall eb eno fo eht sepyt deificeps ni 6.2 eht daerht and shall eb dedulcni ni eht -erusaem
ot 6.4 gnivah dewercs elamef .sdne tnem fo eht daerht .htgnel
6.2 Gate Valves 7.1.2 Alignment
etaG sevlav shall eb fo eht edisni wercs ,epyt ehT sexa fo eht dedaerht telni and teltuo sdne
gnivah ni-dewercs tennob htiw gnisir-non ,mets shall eb nihtiw ”0’1 fo eht .sixa
1
w 13114: 1991
Table 1 Materials
( CIauses 5.1 and 9.2 )
Coaiponent Material Conforming to
,ydoB ,tennob ,revoc gniffuts ,xob degroF ssarb edarG BLF fo SI 6912 : 1985
,csid egdew dna egnih
,dnalG dnalg ,tun ,llab ,mets mets desf;;Jl ssarb ro eerf gnittuc edarG BLF ro edarG FHTBI ro
,tun egnih nip edarG FHTBZ fo SI 6912 : 1985; ro
epyT 11 ( flaH drah ) fo
SI 319: 1974
leehw&aH tsaC nori ees( etoN ) edarG GF 200 fo SI 210 : 1978
dsalG gniclcap a) pmeH dna etuj SI 5414 : 1969
)b sotsebsA S’I 4687 : 1980
ynA rehto yilauqe tneiciffe
C)
gnikcap lairetam elbatius rof
cold retaw
gnirpS ( ni esac kcehc evlav si rohpsohP eznorb eriw SI 7608 : 1987
gnirps dedaol )
NOTE - sleehwdnaH yam osla eb edam rehtie ni ,leets muinimula ,yolla cniz yolla ro fo cillatem-non .slairetam
Table 2 Wall Thickness and Other Dimensions 7.2.1 ehT ecnarelot no dne-ot-dne snoisnemid
( Clauses 7.1 and 8.8 ) shall eb f 5’1 .mm
Nominal Minimum Minimum Minimum Minimum 8 NGISED AND MANUFACTURE
Size Wall Stem Across Flat Length of
Thlckneea Diameter or QD of Threads 8.1 Valve Bodies
Seal@ at Ends ehT ngised fo evlav seidob shall eb hcus as ot
Face at Ends
edivorp elpma ecnatsiser ot noitrotsid rednu -ixam
m(1m) m(2m) m(3m) m(4m) mm (5) mum gnikrow .erusserp
8 1.6 ;:; :82 ;:; 8.1.1 Flow-way Area
:: ;:8’ 6.5 26 9’5
ehT yaw-wolf aera at yna tniop ni a evlav shall eb
Z 2.0 32 10’5
2’1 ;:; 12’0 ton less than that fo a elcric gnivah an tnelaviuqe
32 ::; 9.5 :; 13’5 retemaid ot that nevig ni elbaT 4, tpecxe ni eht
40 10’5 2”s 13’5 ,esac nevig ni 8.1.1.1.
50 2.8 12’0 17’0
8.1.1.1 ebolG and kcehc sevlav htiw gulp epyt
7.2 End-to-End Dimensions discs and discs dediug morf woleb shall evah a
dne-ot-dnE snoisnemid fo sevlav shall eb as nevig yaw-wolf aera fo ton less than 85 tnecrep fo that
ni elbaT 3. nevig ni elbaT 4.

Table 3 End-to-End Dimensions
( Clause 7.2 >
Nominal Size Gate Valves _ Globe Valves Horizontal Lift Vertical Lift Swing Check
Check Valves Check Valves Valves
(1) (2) (3) (4) (5) (6)
mm mm mm mm mm mm
8 43 47 47 47 -
10 43 50 50 50 -
15 52 60 60 52 58
20 56 70 70 60 72
25 65 80 80 63 83
32 73 95 95 76 -
40 76 110 110 86 -
50 90 125 125 97 -
NOTE - reverehW snoisnemid era ton ,nevig esoht sezis era ton yllareneg derutcafunam ni esoht .sngised
2
SI 13114 : 1991
elbaT 4 muminiM yaW-wolF aerA kcaB taeS
8.4
( Clauses 8.1.1 and 8.1.1.1 ) ebolG sevlav shall timrep ’enil-no‘ tnemecalper fo
gland gnikcap rednu eht mumixam gnikrow -serp
Nominal Size Minimum Flow-Way Area Given by erus tuohtiw gniwohs yna egakael hguorht eht
Equivalent Circle of a Diameter of gnifuts xob nehw eht evlav is ni lluf nepo .noitisop
-8 6.3 kcaB taes yam eb dedivorp no eht mets ro no eht
10 9.5 .csid
15 12.7
8.4.1 nI esac fo etag ,sevlav eht kcab taes is
20 19.0
.lanoitpo fI dedivorp ti shall teem eht -eriuqer
25 25 0
stnem fo 8.4.
32 31.7
40 38’1
8.5 noitceriD fo wolF
50 50’0
roF ebolg sevlav and kcehc sevlav eht noitcerid fo
8.1.2 wolf shall eb htiw eht maertspu erusserp rednu eht
Screwed Body Ends
.csid
ehT dewercs ydob sdne fo eht sevlav shall eb
yllanretxe ni eht mrof fo ,nogaxeh nogatco ro 8.6 noitarepO
dnuof htiw ruof ro erom gnidurtorp ribs ot
llA etag and ebolg sevlav shall eb dedivorp htiw a
etatilicaf .gnihcnerw dewercS seidob shall evah
elamef lellarap sdaerht unless repat sdaerht era leehwdnah rof .noitarepo leehwdnaH shall esolc
deificeps yb eht .resahcrup sdaerhT shall eb eht evlav yb gninrut ni esiwkcolc ,noitcerid nehw
gnidrocca ot SI 554 : 1985. rehtO sepyt fo sdaerht gnicaf eht .leehw leehwdnaH shall eb dekram htiw
yam eb dedivorp fi deificeps yb eht .resahcrup eht drow ’NEPO‘ ro ’TUHS‘ htiw worra ot -idni
elpmA ecaps shall eb dedivorp neewteb eht dne fo etac eht noitcerid fo gninepo ro .gnisolc -tanretlA
eht delbmessa epip and yna lanretni .noitcurtsbo ylevi eseht markings yam eb nwohs no a etalp
deruces woleb eht leehwdnah tun ro .wercs ehT
8.2 Discs and segdeW leehwdnah shall eb detnuom no eht derepat erauqs
no eht mets fo eht evlav and shall eb dleh ni ecalp
Discs hcihw era elbahcated ro fo owt eceip- -snoc yb a tun and rehsaw dewercs no ot eht mets ro yb
noitcurt shall eb fo hcus a ngised that yeht tonnac ~a wercs and .rehsaw
emoceb dehcated ni .ecivres Discs fo ebolg and
tfil kcehc sevlav shall eb dediug os as ot tneverp 8.7 metS
.gnigdew
ehT mets shall eb ni eno eceip and shall eb -ised
deng ot tneverp eht egdew ro csid morf gnivael eht
ehT egdew ni etag sevlav shall eb dediug yletauqeda
.mets ehT retemaid fo mets shall eb derusaem at
ni eht ydob and ti shall erusne that eht gnitaes
eht gniwollof :snoitacol
secafrus fo eht egdew od ton hcuot esoht fo eht
ydob litnu raen eht tniop fo .erusolc oT wolla )a Rising mets - at eht gland
rof ,raew segdew fo etag ,sevlav nehw ,wen shall
)b gnisir-noN mets - at eht gland and at eht
edir hgih ni eht ydob seats nehw eht evlav is
rojam retemaid fo eht gnitautca .daerht
.desolc

8.7.1 ehT sdaerht no eht mets shall eb fo erauqs
NOTE - nI llams ezis fo ,sevlav up ot dna gnidulcni
25 ,mm eht noisivorp fo ediug llahs eb .lanoitpo ro ladiozepart mrof ylbareferp gnimrofnoc ot
SI 4694 : 1968, SI 7008 ( traP 3 ) : 1973 and
8.3 gniffutS xoB S1 7008 ( traP 4 ) : 1973. metS fo 8 mm and
10 mm ezis sevlav yam evah wercs sdaerht -noc
ehT gniffuts xob yam eb edam largetni htiw eht
gnimrof ot SI 4218 ( traP 3 ) : 1976 and SI 4218
tennob ro ti yam eb detaroprocni as a etarapes
traP( )4 : 1976.
tnenopmoc deruces ot eht tennob yb .gniwercs A
elbatius ssecer rehtie ni tennob ro ni eht gniffuts
8.7.2 ehT muminim htgnel fo eht gnitautca sdaerht
xob shall eb dedivorp ot etadommocca eht mets
ni tnemegagne at eht nepo ro desolc noitisop fo
ralloc ni eht esac fo gnisir-non mets etag .sevlav
eht evlav shall eb sdriht-owt fo eht lanretxe -maid
rete fo eht .sdaerht
8.3.1
Gland
8.8 Wall ssenkcihT
dnalG shall eb fo eceip-eno ro eceip-owt ngised
gnitsisnoc fo a gland sliding ni eht gniffuts xob and Wall ssenkciht at yna tniop fo ydob and ,tennob
deruces yb a dewercs gland tun hcihw dluohs eb gnidulcni revoc and csid detcejbus ot tcerid diulf
yllanretxe ni eht mrof fo a nogaxeh and shall erusserp as dengised shall revewoh eb ton less than
,mrofnoc as raf as ,elbissop ot a standard tun .ezis esoht nevig ni elbaT 2.
3
SI
13114 : 1991
9 TESTING 10 INSPECTION AND REPAIRS
9.1 General 10.1 Inspection
Unless esiwrehto ,deificeps all ,stset gnidulcni ehT rotcepsni gnitneserper eht resahcrup shall evah
lairetam stset fi eht seitilicaf ,tsixe shall eb deirrac eerf ssecca at all elbanosaer semit ot esoht parts
tuo at eht s’rerutcafunam skrow and shall eb -noc fo eht s’rerutcafunam skrow hcihw era denrecnoc
detcud ni eht ecneserp fo s’resahcrup evitatneserper htiw eht erutcafunam fo sevlav and eh shall eb
nehw os deificeps ni eht esahcrup .redro dedroffa all elbanosaer seitilicaf rof gniyfsitas -mih
fles that eht sevlav era gnieb derutcafunam ni
9.2 Material Tests ecnadrocca htiw this standard.
lairetaM stset deriuqer shall eb esoht nevig ni eht 10.1.1 Unless esiwrehto ,deificeps noitcepsni shall
gnidnopserroc lairetam snoitacificeps derrefer ot eb enod at eht ecalp fo erutcafunam roirp ot
ni elbaT 1. ehT lairetam shall eb deifitrec yb eht hctapsed and shall eb detcudnoc os as ton ot
sreilppus htiw drager ot rieht ecnailpmoc ot eht erefretni ylirassecennu htiw eht noitarepo fo eht
snoitacificeps laid nwod rof .meht .skrow
nehW on noitcepsni is deirrac tuo yb eht
10.1.2
9.3 Hydrostatic Testing ,resahcrup eht rerutcafunam nehw deriuqer ot od
shall edivorp a tset etacifitrec stating that eht
9.3.1 llA sevlav shall eb detcejbus ot citatsordyh SO,
sevlav mrofnoc ni all stcepser ot this standard.
stset rof eht ,ydob taes and taeskcab ( as -cilppa
elba ) rof eht tset serusserp nevig ni 9.3.2 and rof
10.2 riapeR fo stcefeD
eht tset snoitarud nevig ni 9.3.3.
oN stcefed hcihw yam raeppa gnirud erutcafunam
erehT shall eb on elbisiv egakael gnirud eht .stset ro gnitset shall eb deriuqer ni yna yaw tuohtiw eht
egapeeS morf gniffuts sexob shall eb elbissimrep tnesnoc fo eht .resahcrup
ta‘ eht ydob ( llehs ) tset erusserp dedivorp that
11 EGAROTS AND NOITATROPSNART
ereht is on elbisiv egakael nehw eht erusserp is
decuder ot eht taes tset .erusserp 11.1 retfA ,gnitset hcae evlav shall eb deniard fo
tset ,diuqil denaelc fo yna suoenartxe rettam and
9.3.1.1 retaW detaert htiw a elbatius rotibihni ylbatius detcetorp~ rof egarots and .noitatropsnart
nehw yrassecen shall eb desu as eht gnizirusserp
11.2 llA evlav segdew ro discs shall eb ni eht
.muidem sevlaV and snoitcennoc shall eb detnev
desolc noitisop nehw eht sevlav era .dehctapsed
erofeb eht tset erusserp is deilppa ot tneverp eht
noitamrof fo ria .stekcop 11.3 ydoB sdne shall eb delaes ot edulcxe ngierof
rettam gnirud egarots and .noitatropsnart
gniogrednu erusserp gnitset shall
9.3.1.2 No valve 11.4 gnitniaP fo sevlav is ton a tnemeriuqer fo
eb detcejbus ot yna mrof fo kcohs .gnidaol
this standard.
9.3.1.3 rednU on noitidnoc shall gland fo a evlav sleehwdnaH fo sevlav yam eb devomer morf
11.5
eb denethgit whilst eht erusserp htiw eht evlav eht sevlav and dekcap htiwgnola eht sevlav deruces
is rehgih than eht mumixam gnikrow erusserp yb a droc ro .eriw
fo 2 MPa.
12 GNILPMAS
9.3.2 Test Pressures 12.1 ehT sampling erudecorp and eht airetirc rof
ehT citatsordyh erusserp shall eb denimreted morf ytimrofnoc shall eb as nevig ni xennA .B
eht gniwollof :spihsnoitaler
13 MARKING
)a Shell Test - 5’1 x mumixam gnikrow -erp 13.1 sevlaV shall eb dekram htiw eht gniwollof
eruss fo 2 MPa ,noitamrofni rehtie degrof largetni ro ,depmats no
eht ydob and shall eb ylraelc :elbisiv
)b Seat and Backseat Test - I.1 x maximum
gnikrow erusserp fo 2 MPa. )a s’rerutcafunaM eman fo ,kram-edart
)b lanimoN ,ezis
staeS fo kcehc sevlav shall osla eb detset ot
)c 2 MPa,
eno htruof fo eht mumixam gnikrow erusserp
)d An worra gniwohs eht noitcerid fo wolf ni
fo 2 MPa.
esac fo ebolg sevlav and kcehc ,sevlav
9.3.3 Test Duration )e hctaB ,rebmun and
)f ynA lanoitidda gnikram as deerga ot -teb
muminiM tset noitarud shall eb as :swollof
neew eht resahcrup and eht .rerutcafunam
)a Shell Test - 15 sdnoces 13.2 hcaE evlav yam osla eb dekram htiw eht
)b Seat and Backseat Test - 15 .sdnoces dradnatS Mark.
4
IS 13114: 1991
ANNEX A
( Clause 2 )
TSIL FO DERREFER NAIDNI SDRADNATS
IS No. Title IS No. Title
210 : 1978 yerG nori castings ( driht revision ) 4854 traP( )1 : yrassolG fo smret rof sevlav and
1969 rieht parts : traP 1 neercS nwod
319 : 1974 eerF gnittuc brass bars, sdor and pots kcehc and etag sevlav and
snoitces ( driht
revision ) rieht parts
554 : 1985 snoisnemiD rof epip sdaerht 4905 : 1968 sdohteM rof modnar sampling
erehw thgit-erusserp stnioj era
dnalG gnikcap etuj and pmeh
deriuqer no sdaerht ( third ii:z ’ zii:
reppoC and reppoc syolla gnigrof
revision )
kcots and sgnigrof
(first revision )
4218 traP( )3 : 0SI cirtem wercs sdaerht : traP 3
0SI cirtem ladiozepart wercs
1976 cisaB snoisnemid rof ngised -forp $$ traP( 3, ’
sdaerht : traP 3 cisaB snoisnemid
iles (Jirst revision )
(first revision )
4218 traP( )4 : 0SI cirtem wercs sdaerht : traP 7008 traP( )4 . cirtem ladiozepart wercs
1976 4 gnicnareloT metsys (Jirst 1973 . Z sdaerht SO : traP 4 secnareloT (Jim
revision )
revision )
4687 : 1980 dnalG gnikcap sotsebsa tsrif( 7608 : 1987 rohpsohP eznorb seriw rof -neg
revision ) lare gnireenigne sesoprup (Jim
cisaB snoisnemid rof erauqs revision )
~4694 : 1968
sdaerht 9520 : 1980 lanimoN ezis rof sevlav
ANNEX B
( Clause 12.1 )
GNILPMAS AND AIRETIRC FOR YTIMROFNOC
l-B ELACS FO GNILPMAS B-1.3.1 esehT sevlav shall eb detceles at modnar
morf eht .tol nI redro ot erusne eht ssenmodnar
1.l-B toL
fo ,noitceles serudecorp nevig ni SI 4905 : 1968
nI yna ,tnemngisnoc all eht sevlav edam fo eht yam eb .dewollof
emas ,lairetam fo eht emas lanimon ezis and fo eht
2-B REBMUN FO STSET AND AIRETIRC
emas epyt and morf eht emas hctab fo -tcafunam
FOR YTIMROFNOC
eru shall eb depuorg rehtegot ot etutitsnoc a .tol
1.2-B llA eht sevlav detceles gnidrocca ot 3.l-B

2.l-B roF gniniatrecsa eht ytimrofnoc fo lairetam shall eb denimaxe rof ,lairetam ,snoisnemid ngised
ni eht tol ot eht stnemeriuqer fo this ,noitacificeps and .erutcafunam A elpmas evlav gniliaf ot yfsitas
samples shall eb detset morf hcae tol .yletarapes eno ro erom fo eseht stnemeriuqer shall eb -noc
deredis as .evitcefed
3.1-B ehT rebmun fo -sevlav ot eb detceles morf
eht tol shall dneped no eht ezis fo eht tol and shall 1.1.2-B ehT tol shall eb deredisnoc ot evah satis-
eb gnidrocca ot elbaT 5. deif eseht stnemeriuqer fi eht rebmun fo evitcefed
sevlav dnuof ni eht elpmas is less than ro lauqe ot
elbaT 5 elacS fo gnilpmaS and airetirC rof eht gnidnopserroc ecnatpecca rebmun nevig ni
ytimrofnoC 1oc 3 fo elbaT 5
( l-B .3, 4.1.2-B 2.2-B ehT tol gnivah neeb dnuof yrotcafsitas
Clauses and B-2.2 )
gnidrocca ot 1.2-B shall eb rehtruf detset rof ydob
.oN sevlaV ,tset taes and taeskcab tset ( reverehw .)elbacilppa
of Sample A;ue;pe;ce Sub-sample
in the Lut Size Size roF this ,esoprup a elpmas-bus fo sevlav as nevig
(1) )2( (3) (4) ni 1oc 4 fo elbaT 5 shall eb nekat and detcejbus ot
up ot 150 8 0 3 eseht .stset ehT rebmun fo sevlav deriuqer ni eht
151 to 300 13 0 5 elpmas-bus yam eb nekat morf esoht ydaerla detset
301 to 500 20 1 8 and dnuof yrotcafsitas gnidrocca ot .1.2-B
501 to 1 000 32 2 13 1.2.2-B ehT tol shall eb deredisnoc ot -sitasevah
1001 to3000 50 3 20 deif eht stnemeriuqer rof eseht stset fi enon fo
3 001 and above 80 5 32 sevlav ni eht elpmas-bus sliaf ni yna fo eseht ,stset
5