IS 13487: Irrigation Equipment - Emitters

19 Pages·1992·1.5 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 13487 (1992): Irrigation Equipment - Emitters [FAD 17:
Farm Irrigation and Drainage Systems]
“!ा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”

IS13487:1992
(Reaffirmed1997)
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-
Indian Standard
IRRIGATION EQUIPMENT - EMITIERS
SPECIFICATION
UDC 621-347
o
DIS 1992
BUREAU OF INDIAN STANDARDS
MANAK BHA.VAN, , BAHADUR. SHAH ZAPAR MARO
NBW DBUII 110002

July 1992 PrIce Greap 3
Al\1ENDMENT NO. 1 APRIL 1994
TO
IS 13487: 1992 IRRIGATION EQUIPMENT·EMITIERS
- SPECIFICATION
(P{/~e 2,cluus«6.2)- Substitute'IS 12786: 19H9' inplaceof 'IS 12716 :
It)~y',
(P(lge 5,clause9.1 )~Addthefollowingsentenceattheend:
'Balch or Code No. IJet! (tJ)J IHay be marked on the package in place of each
emiller.'
(FAD35)
ReprographyUnir,BIS.NewDelhi,'ncJil
AMENDMENT NO.2 JUNE 19'6
TO
IS 13487: 1992 IRRIGATION EQUIPMENT-
EMITIERS- SPECIFICATION
( Page 3, clause 7A.l, elevelllh liM ) - Delete 'x' between tbe words
2
'material· and (N/mm )t.
C
(Page3.clausel.l.Z,Note)- Substitutetbefollowing fortheexisting:
'NOTES
I IfIheemillercootainsmovable ~115. candiaion lheemilleral dC$Uibed inll.3 before
coDductinlthcliat.
1 For'hepurpose ofmeasurin. r.miMion rale, collect I Wiler sample (rom each emilter
outletCor.sminutesandtbe,calculatetbeemissioDrateroreachoudet.'
_ :II
(PageS,clause8.~.2,firstpar«, line2)- Substitute'qtfor'p',
(Pagt! 5, clause 8.2.%, secondpara, line4 ) - Substitute.~ Spercentfor
categoryAInd ~ 10percentforcategoryB' for Spercent'.
'j:
(Page5,clause8.3)- Substitutethefollowingfortheexisting:
or
'8.3 Determln.ttoD EmitterExponent
Thisdeterminationappliesonlyto regulatedeminers.
The relationbetween the emission rate q in lib and tbe inlet pressure in sn
emitter,pinkPa isgivenbytbeformula:
q= kxp·
where
q=emissionrate(lib),
=
k constant,
=
p inletpressure(kPa).and
m emittingunitexponent.
:I:
UsingIII tbeq andp values obtained in 8.%.3 calculate m Crom thefollowing
formula:
- -
I (logPi)(Jogqi)... lIn(~J08pj) (IJogq; )
m=
I (logPi)2 _ lIn(logPi)2
AmendNo.ZtoIS13487:1"1
where
i 1.2,3 n;
E
,.=tbenumberofpressurevalue.usaIin1.1.3;
=
q emissionratevalue(lib);Ind
p=pressurevalue(kPa).
8.3.1 Thevalue oftheemittingunitexponentmshallnotexceed0.2.'
(FAD54)
RepJOPphylJIlit.BIS,NewDelhi.India
2
AMENDMENT NO. 3 SEPTEMBER 1'98
TO
IS 13487: 1992IRRIGATION EQUIPMENT
EMITTERS-- SPECIFICATION
,.3)-
(Pagt2,clauJe Substitutethefollowingfortheexistingclluse:
'Duri~ tbetestthepressure shaD notvary by moretban*0.002mP.( 0.02
kg/em ).'
(FADS4)
ReproaraplayUBi&,DIS.NewDelW.hadil
AMENDMENT NO. 4 OCTOBER 2000
TO
IS 13487: 1992 IRRIGATION EQUIPMENT
EMITTERS - SPECIFICATION
(Page 2, clause '.1, Paragrapli 3, line 2 ) - Substitute C(27tJ: 3°C)' for
c27:ttOC'.
[ Page 2, clause '.3 (see also Amendment No.3)] - Substitute the
followingfortheexisting:
'The waterpressure shall be measured withafterrornotmore thanOJlO2 MPa.
Duringtbetestthepressureshallnotvary by morethan:t 0.002MPaandemlssion
rateoftbeemlnershallbemeasuredwithanerrornotmorethan:t 2percent.'
(Page6)-Insertthefollowing newclauseattheendoftext:
'II PACKING
Emittersmay-bepackedinnumberof100,200,500andt 000.'
(FAD 54)
ReprolrlphyUnit.BIS.NewDelhi,India
A-MENDMENT NO.5 JANUARY 2006
To
IS 13487: 1992 IRRIGATION EQUIPMENT
EMITTERS- SPECIFICATION
I Pag« S.. clause 8.3. line I ( see a/so Amendment No.2) ]
Substitute "for both - regulated and unregulated emitters' .for'only to
regulaledemitters'.
( />age 5.. clause 8.3.1. line 1) - Substitute the following for the
existingtext:
TIle manufacturer shall declare thetype based on the emitter exponent as
follows:
Emitterexponent Emittertype
<0.2 Regulated
0.21 to 0.5 Unregulated, Turbulentflow
0.51 to0.75 Unregulated, Laminarflow
>0.75 Unregulated, CapillaryorOrificeflow
(FADI1)
Repro..sraphyUnit,81S,NewDelhi,India