IS 287: Permissible Moisture Content For Timber Used For Different Purposes - Recommendations

10 Pages·1993·1.3 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 287 (1993): Permissible Moisture Content For Timber Used
For Different Purposes - Recommendations [CED 9: Timber and
Timber Stores]
“!ा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”

I8 287 : 1893
( R&affirmed 1998 )

Indian Standard
PERMISSIBLEMOISTURECONTENTFOR
TIMBERUSEDFORDIFFERBNTPURPOSES-
RECOMMENDATIONS
( Third Revision
)
First Reprint APRIL 1999 j
UDC 674.03 : 545,812 ( 621.753~1 )

0 BJS 1993
BUREAU OF INDIAN STANDARDS
MARC3
MANAK BHAVAN, 9 BAHADUR SHAH ZAPAR
NEW DELHI 110002

June 1993 Price Group 2
rebmiT lanoitceS ,eettimmoC CED 9
FOREWORD
sihT naidnI dradnatS ( drihT noisiveR ) was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard
dezilanif yb eht rebmiT lanoitceS eettimmoC had neeb devorppa- yb eht liviC gnireenignE noisiviD
.licnuoc
sihT standard was tsrif dehsilbup ni 1951. tI was yltneuqesbus desiver ni 1960 ot edulcni a deifidom
noitacramed fo citamilc senoz no eht basis fo lacigoloroetem data no evitaler ytidimuh and neht desiver
ni 1973 ot etaroprocni eht tsetal data ni drager ot elbissimrep erutsiom tnetnoc rof suoirav sesoprup
sediseb gnibircserp ni retaerg liated eht sdohtem fo gnitset erutsiom .tnetnoc
nI this driht noisiver eht elbat no seicepS‘ noitcerroC rof emoS Makes fo cirtcelE ecnatsiseR epyT
erutsioM sreteM rof nommoC laicremmoC ’srebmiT has neeb .dettimo ehT sdohtem rof noitanimreted
fo erutsiom tnetnoc fo rebmit is deteled and ecnerefer has neeb edam ot SI 11215 : 1991 sdohteM‘ rof
noitanimreted fo erutsiom tnetnoc fo rebmit and rebmit stcudorp (first revision )‘. stnemdnemA .oN 1
and 2 issued ot dnoces noisiver fo this standard evah osla neeb .detaroprocni
ehT erutsiom tnetnoc fo a ylluf denosaes eceip fo doow sdneped ylniam nopu eht cirehpsomta
snoitidnoc gniliaverp ni eht ytilacol ni hcihw ti is ,denosaes hguohtla eht seiceps fo doow and -ssorc
noitces fo eht eceip osla evah an tnatropmi .gniraeb ehT erutsiom tnetnoc fo denosaes doow segnahc
morf nosaes ot nosaes gnidneped ylfeihc nopu eht snoitautculf ni cirehpsomta ,ytidimuh hguoht ereh
again eht erutan fo eht seiceps and eht lanoitces-ssorc aera fo eht eceip as llew as eht ecafrus tnemtaert
deilppa ot ti yalp an tnatropmi .trap roF ,ecnatsni a eceip fo kaet is elbitpecsus ot ressel segnahc ni
’, erutsiom tnetnoc than a eceip fo lumes fo eht emas ezis and desopxe ot eht emas cirehpsomta .segnahc
Again, a eceip fo rebmit 100 mm x 100 mm ni noitces-ssorc sreffus ressel segnahc than a eceip fo eht
emas rebmit mm-ool x 25 mm in the cross-section. ehT noitacilppa fo a paint ro hsinrav ot eht ecafrus
fo rebmit secuder segnahc ni erutsiom tnetnoc htiw segnahc ni i4tmuh Zlr‘ yt fo eht gnidnuorrus .ria gnippiD
ro erusserp tnemtaert htiw lio ro lio-etosoerc erutxim osla has a ralimis .tceffe
aidnI is a tsav yrtnuoc htiw a yteirav fo citilc .snoitidnoc roF eht esoprup fo this standard, eht
yrtnuoc has neeb yldaorb dedivid otni ruof ,senoz morf eht yrev toh and yrd etamilc ot eht latsaoc
etamilc fo htuoS aidnI erehw ti is tsomla syawla toh and tsiom ( ees 3 and Map fo aidnI .) lanosaeS
segnahc ni eht erutsiom tnetnoc fo doow rucco yltsom ni senoz II and ,III erehw a ,toh yrd remmus is
yltpurba dewollof yb a tew yniar .nosaes
tI yam eb denoitnem that htiw eht data elbaliava ot eht ,eettimmoc ti was ton elbissop ot etacramed
eht senoz ni a tuc-raelc .rennam snoitavresbO erew deirrac tuo yb eht neht tseroF hcraeseR etutitsnI
and ,segelloC ,nudarheD at 19 ,seitilacol tuo fo hcihw ylno 12 won llaf nihtiw eht seiradnuob fo .aidnI

desaB no this ,noitamrofni and no eht dehsilbup lacigoloroetem data, an tpmetta has neeb edam ot
edivid eht yrtnuoc ylhguor otni ruof erutsiom tnetnoc .senoz nevE nihtiw a ,enoz citamilc snoitidnoc
yrav at tnereffid seitilacol eud ot lacisyhp ,serutaef hcus as edutitla and ytiniciv fo sniatnuom gnitca as
reirrab ot tsiom ro yrd winds. ehT noitamrofni nevig ni this standard has, ,erofereht ot eb deilppa ni a
yrev lareneg ,rennam taking otni noitaredisnoc eht gnitsixe lacol .snoitidnoc
rebmiT shrinks no ,gniyrd and eht egaknirhs ni detacirbaf serots sdael ot ylthgisnu gaps neewteb planks
and gninesool fo stnioj sediseb ,noitamrofed ,skcarc .cte ehT egaknirhs gnola eht niarg is yrev small and
elbigilgen rof lacitcarp ,sesoprup tpecxe nehw eht rebmit sniatnoc noisserpmoc and noisnet doow and
doow morf dnuora eht .sehcnarb erehT is elbaicerppa egaknirhs ssorca eht .niarg ehT rebmit desu ni
eht erutcafunam fo rebmit serots ,dluohs ,erofereht eb ylreporp denosaes erofeb ,esu hguoht rof emos
sepyt fo serots a elttil erom ecnarelot ni erutsiom tnetnoc is elbissimrep than rof srehto ni eht tseretni
fo ycneidepxe- and tnatluser .ymonoce nI a gnikcap ,esac ekilnu a elbat pot rof ,ecnatsni a gap fo tuoba
3 mm neewteb tnecajda planks, desuac yb egaknirhs fo doow tneuqesbus ot ,noitacirbaf is fo on
.ecnatropmi
tI is laitnesse that rebmit desu rof eht erutcafunam fo nedoow serots dluohs evah deniatta a erutsiom
tnetnoc as raen as elbissop ot eht eulav that lliw eb deniatta ni muirbiliuqe htiw eht egareva -somta
cirehp snoitidnoc ni .ecivres lluF noissucsid fo this tcejbus is ot eb dnuof ni A‘ yevrus fo lanosaes
noitairav fo eht erutsiom tnetnoc fo naidnI ,’sdoow naidnI tseroF ,sdroceR noitazilitU ( weN seireS ,)
loV 2, .oN 10. yltcirtS ,gnikaeps rof tnereffid rebmit serots ereht is an mumitpo erutsiom ,tnetnoc
gnidneped nopu eht erutan fo esu and eht citamilc ,snoitidnoc at hcihw rebmit dluohs eb denosaes and
derutcafunam rof tseb ecnamrofrep ni .ecivres
( deunitnoC no driht reroc )
SI 287 : 1993
Indian Standard
PERMISSIBLEMOISTURECONTENTFOR
TTMBBRUSEDFORDIFFERENTPURPOSES-
RECOMMENDATIONS
( Third Revision )
I EPOCS morf eht elpicnirp that rebmit rof esu rof yna
ralucitrap erots dluohs eb denosaes ot a
sihT standard srevoc eht snoitadnemmocer rof
erutsiom tnetnoc hcihw is yawdim neewteb
elbissimrep stimil fo erutsiom tnetnoc desab no
eht mumixam and muminim muirbiliuqe erutsiom
mumitpo erutsiom stnetnoc detacidni yb -irepxe
tnetnoc fo eht ralucitrap .ecalp
latnem *atad and eht secnarelot elbissimrep ni
eseht ,stimil rof tnereffid serots ni hcae fo eht NOTE - ynA eceip fo doow lliw evig ffo ro take no
ruof citamilc senoz otni hcihw eht yrtnuoc has erutsiom morf eht gnidnuorrus erehpsomta litnu eht
erutsiom ni doow sah emoc ot a ecnalab htiw eht
neeb yldaorb dedivid rof this ,esoprup htiw a
gnitsixe cirehpsomta .snoitidnoc ehT erutsiom -noc
weiv ot gnirusne deriapminu ytilitu fo eht serots tnet at hcihw rebmit rehtien sniag ron sesol erutsiom
as a tluser fo citamilc .segnahc nehw detcejbus ot a nevig tnatsnoc noitidnoc fo
erutarepmet dna ytidimuh si nwonk sa eht -biliuqe
2 SECNEREFER muir erutsiom tnetnoc gnidnopserroc ot laht
SI 11215 : 1991 sdohteM‘ rof~ noitanimreted fo .noitidnoc
erutsiom tnetnoc fo rebmit stcudorp ts&( 5 RECOMMENDED SECNARELOT- NI
revision )’ si a yrassecen tcnujda ot this ELBISSIMREP STIMIL FO ERUTSIOM
standard. TNETNOC FOR VARIOUS DNE SESU
denosaeS rebmit ( rehtehw ria ro deird-nlik )
3 SENOZ
shall eb demeed ot mrofnoc ot eht erutsiom
ehT yrtnuoc has neeb yldaorb dedivid otni eht tnetnoc stnemertuqer fo this standard fi eht
gniwollof ruof senoz ( ees osla Map) no eht basis degareva erutsiom tnetnoc fo all eht samples
fo noitamrofni detcelloc yb eht tseroF hcraesaeR morf a nevig tol is nihtiw + 2 tnecrep and eht
etutitsnI no eht lanosaes segnahc ni eht erutsiom erutsiom tnetnoc fo laudividni samples is nihtiw
tnetnoc fo rebmit at 12 seitilacol ni ,aidnI c- 3 tnecrep fo eht elbissimrep erutsiom tnetnoc
detnemelppus yb dehsilbup lacigoloroetem data rof eht ralucitrap dne esu and ytilacol detacidni
no eht ytidimuh snoitairav ni eht :yrtnuoc rednu elbaT 1, tpecxe rof eht gniwollof dne uses
enoZ I egarevA annual evitaler ytidimuh rof hcihw secnarelot shall eb as detacidni :woleb
less than 40 tnecrep esU
Tolerances

enoZ II egarevA annual evitaler ytidimuh : egarevA erutsiom -noc
05-04 tnecrep larutlucirgA -elpmi 1 tnet fo all eht samples
enoZ TII egarevA annual evitaler ytidimuh stnem morf a tol shall eb
evoba 50 and up ot 67 tnecrep smaeB and sretfar 1 i nihtiw + 3 tnecrep and
erutsiom tnetnoc fo
enoZ VI egarevA annual evitaler ytidimuh
Carts and selcihev 1 laudividni samples -htiw
erom than 67 tnecrep
ton( nevird-rotom ) ni + 5 tnecrep fo eht
:
NOTE - roF yna citamilc-orcim noitidnoc ton -revoc elbissimrep erutsiom
de yb eht lacigoloroetem data rof dradnats snoitats srooD and :swodniw 1 tnetnoc rof eht -itrap
noitidnoc ni eht yrtnuoc rof a no ytilacol hcihw yam eht pam eb dediced si ehf,desab no eht lanoz sisab 50 mm and evoba ni / raluc dne esu and
fo sti ylhtnom ytidimuh data dna ni eht thgil fo eht ssenkciht ytilacol detacidni rednu
I
noiretirc tuoba RH egnar ydaerla debircserp rof elbaT 1.
f
tnereffid senoz rednu 3.
l- egarevA erutsiom -noc
4 STIMIL FO ELBISSIMREP ERUTSIOM I tnet fo all eht samples
TNETNOC SA DETACIDNI YB -NEMIREPXE
tfarcriA morf a tol shall eb
LAT ATAD ON LANOSAES NOITAIRAV FO /
nihtiw + 2 tnecrep and
ERUTSIOM TNETNOC FO REBMIT tooB lasts
erutsiom tnetnoc fo
ehT elbissimrep stimil fo erutsiom tnetnoc fo nrettaP making 1 laudividni samples
rebmit nehw denimreted ni ecnadrocca htiw elfiR parts and gun [ nihtiw + 3 tnecrep fo
SI 11215 : 1991 desab no mumitpo erutsiom kcots eht elbissimrep -siom
stnetnoc detacidni yb latnemirepxe data rof erut tnetnoc rof eht
denosaes rebmit deriuqer rof suoirav nedoow selttuhS I ralucitrap dne esu and
serots and uses ni hcae fo eht ruof senoz era I ytilacol detacidni -nu
nevig ni elbaT 1. esehT stimil evah neeb devired : red elbaT 1.
NOTE - ehT secnarelot sa detacidni rednu 5 era
naidnI* tseroF ,sdroceR loV 2, .oN 10. etulosba seulav revo eht seulav detacidni ni elbaT 1.
1
1s 287 : 1993
Table 1 Permissible Moisture Content of Timber for Different Uses
( Clauses-4 and 5 )
Sl No. Use Moisture Content, Percent, MUX
----------- h-_-------,
. enoZ enoZ enoZ enoZ
I II III VI
)1( )7-i i3) (4) (5) tG)
9 tfarcriA 10 12 14 15
ii) larutlucirgA stnemelpmi 12 14 16 16
iii) noitinummA sexob 10 12 14 14
iv) laicifitrA sbmil 8 10 I2 12
elibomotuA :seidob
v>
a) 50 mm dna evoba ni ssenkciht 10 12 14 16
)b rennihT naht 50 mm 8 10 12 14
vi) smaeB dna sretfar 12 14 17 20
vii) tooB stsal 10 12 14 16
viii) xoB skoohs 12 14 16 18
ix) straC dna selcihev ( ton rotom nevird ) 10 12 14 16
x) egarepooC 10 12 !2 14
xi) srooD dna :swodniw
a) 50 mm dna evoba ni ssenkciht 10 12 14 1G
)b rennihT naht 50 mm 8 10 12 14
xii) lacirtcelE yrtsudni 10 12 14 15
gniroolF spirts rof lareneg sesoprup 8 10 10 12
xiii)
gniroolF spirts rof eht aet snedrag 12 12 14 16
xiv)
erutinruF dna tenibac gnikam IO 12 14 I5
xv)
xvi) seldnaH 12 12 14 15
)iivx gnikamnrettaP 8 10 12 14
)iiivx yawliaR egairrac :gnidliub
a) 50 mm dna evoba ni ssenkciht 10 12 14 14
)b rennihT naht 50 mm 8 10 12 12
)xix elfiR strap dna nug skcots 8 10 12 12
)xx selttuhS dna snibbob 8 10 12 12
)ixx stropS ,sdoog sallerbmu dna gniklaw skcits IO 12 I4 16

)iixx pihS dna taob :gnidliub
kceD 10 12 12 l-1
emarF 12 14 16 18
gniknalP 12 14 14 16
)iiixx srepeelS 20 tnecrep ni all ,senoz erutsiom tnetnoc
gnieb denimreted nihtin a htped fo
20 mm morf eht ecafrus dna gnidulcxe
300 mm morf hcae dne
)vixx rebmiT tnaem rof rehtruf ,noisrevnoc tsop 20 tnecrep ni all ,senoz erutsiom tnetnoc
dna selop gnieb denimreted nihtiw a htped fo
12 mm morf eht ecafrus dna gnidulcxe
300 mm nroif hcae dne
)vxx .s)01‘ ,yrenrut ,gnivrac ,skcolc ,sehsurb pit- 8 10 12 12
,semarf .smoorb ragic ,sexob ,snep
ture
lacitamehtam~,slicnep dna lacisum stnemurtsni
dna dlohesuoh sdoog
2

( Continued from second cover )
nI ,ecitcarp ,revewoh ti is rehtien lacimonoce ron laitnesse ot yletulosba mrofnoc ot eht mumitpo
erutsiom stnetnoc detacidni yb latnemirepxe data, tpecxe rof eht uses gnidnamed emertxe .noisicerp
ehT tlucifid ytilibaliava fo denosaes ,rebmit gnol sdoirep deriuqer rof ria gninosaes ro neve nlik
gninosaes kciht and yrotcarfer ,rebmit elbativeni segnahc ni eht erutsiom tnetnoc fo denosaes rebmit ni
egarots ro transit and esnepxe esiwrehto devlovni ni gnidivorp rof denoitidnoc egarots ,seitilicaf
tnerehni ycaruccani ni sdohtem fo dleif gnitset fo erutsiom ,tnetnoc ,cte ekam this esruoc etiuq
.elbacitcarpmi elbatiuS secnarelot evitaler ot eseht mumitpo erutsiom stnetnoc evah erofereht ot eb
,deredisnoc gnidneped nopu eht noisicerp devlovni ni tnereffid uses, ot ekam eht standards erom elbisaef
and elbatpada rof noitcepsni sesoprup ni dleif snoitcasnart fo .rebmit
evitisoP secnarelot evah ot eb dexif ylniam yb a noitaredisnoc fo eht snoisnemid fo rebmit snoitces
,desu gninosaes sdoirep ,devlovni ycaruccani fo erutsiom noitanimreted sdohtem and eht tnetxe ot
hcihw eht ralucitrap dne esu stimrep noisicerp ot eb .deifircas evitageN secnarelot dluohs ekat tnuocca
fo eht ytilibail fo rebmit ot yrd rehtruf ni egarots neve retfa eht mumitpo erutsiom tnetnoc has neeb
deniatta and eht tnetxe ot hcihw rebmit yam etaived morf this erutsiom level tuohtiw ylesrevda
gnitceffa .noisicerp With eht ydaerla etuca yticracs fo yltneiciffus denosaes rebmit ti is deredisnoc
rehtar dehstefraf ot rehtruf tcirtser ytilibatpecca yb gniyficeps stimil rof evitagen secnarelot .osla
,ylgnidroccA evitagen secnarelot evah ton neeb laid nwod rof eht ytirojam fo lareneg uses rof hcihw
ylno evitisop secnarelot evitaler ot eht mumitpo erutsiom stnetnoc evah neeb .deificeps lanoitiddA
noitacificeps fo evitagen secnarelot has neeb deredisnoc laitnesse ylno rof eht erom gnitcaxe uses, hcus
as elfir ,kcots yrdnuof ,snrettap tfarcria ,kcots tfarcria ,noitcurtsnoc eohs lasts and ,selttuhs hcihw
eriuqer hgih noisicerp fo epahs and ezis ni ecivres ro ni evititeper noitcudorp fo rehto dehsinif .sdoog
elbaredisnoC assistance has neeb deviecer morf eht tseroF hcraeseR ,etutitsnI nudarheD ni gniraperp
this standard.
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.
Bureau of Indian Standards
SIB is a yrotutats noitutitsni dehsilbatse rednu eht ot etomorp suoinomrah
Bureau ofIndian StandardsAct, 1986
tnempoleved fo eht seitivitca fo ,noitazidradnats gnikram and ytilauq noitacifitrec fo sdoog and gnidnetta ot
detcennoc srettam ni eht .yrtnuoc
Copyright
SIB has eht thgirypoc fo all its .snoitacilbup oN trap fo eseht snoitacilbup yam eb decudorper ni yna mrof tuohtiw
eht roirp noissimrep ni gnitirw fo .SIB sihT seod ton edulcerp eht eerf ,esu ni eht esruoc fo gnitnemelpmi eht
standard, fo yrassecen ,sliated hcus as slobmys and ,sezis epyt ro edarg .snoitangised seiriuqnE gnitaler ot
thgirypoc eb desserdda ot eht rotceriD ,)snoitacilbuP( .SIB
Review of Indian Standards
slnemdnemA era issued ot standards as eht sesira-deen no eht basis fo .stnemmoc Standards era osla deweiver
;yllacidoirep a standard gnola htiw stnemdnema is demriffaer nehw hcus weiver setacidni that on segnahc era
;dedeen fi eht weiver setacidni that segnahc era ,dedeen ti is nekat up rof .noisiver sresU fo naidnI Standards
dluohs niatrecsa that yeht era ni noissessop fo eht tsetal stnemdnema ro noitide yb gnirrefer ot eht tsetal issue
fo SIB‘ ’koobdnaH and sdradnatS‘ : ylhtnoM ,’snoitiddA
sihT naidnI dradnatS has neeb depoleved morf toD : .oN CED 9 ( 4858 .)
Amendments Issued Since Publication
dnemA .oN etaD fo eussI txeT detceffA
BUREAU OF INDIAN STANDARDS
:sretrauqdaeH
Manak ,navahB 9 rudahaB Shah rafaZ Marg, weN ihleD 110002 :smargeleT Manaksanstha

senohpeleT : 323 01 31, 323 94 02, 323 33 75 ( nommoC ot
all seciffo )
lanoigeR :seciffO enohpeleT
lartneC : Manak ,navahB 9 rudahaB Shah rafaZ Marg I 323 76 17
WEN IHLED 110002 323 i483
nretsaE : 4l/l C. .I .T emehcS IIV M, V. .I .P ,daoR alotkinaM I 337 84 99. 337 85 61
ATTUCLAC 700054 337 86 26, 337 86 62
nrehtroN : SC0 ,633-533 rotceS ,A-43 HRAGIDNAHC 160022 I 60 38 43
60 20 25
nrehtuoS : C. .I .T Campus, VI ssorC ,daoR IANNEHC 600113 23502 16,2350442
235 15 19,235 23 15
nretseW : ,ayalakanaM 9E MIDC, ,loraM irehdnA )tsaE( 8329295,8327858
MUMBAI 400093 832~1891,8327892
sehcnarB : DAMHA .DABA .EROLAGNAB .LAPOHB .RAWHSENABUHB
.EROTABMIOC .DABADIRAF .DABAIZAHG .ITAHAWUG .DABAREDYH JAIPUR.
.RUPNAK .WONKCUL .RUPGAN .ANTAP .ENUP .MARUPAHTNANAVURIHT
detnirP at New gnitmrPaidnI Press, Khurja, aidnI