IS 7016-7: Methods of test for coated and treated fabrics, Part 7: Rubber-or plastics-coated fabrics - Determination of resistance to penetration by water

2009·3 MB·English

by  Bureau of Indian Standards

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IS 7016-7 (2009): Methods of test for coated and treated
fabrics, Part 7: Rubber-or plastics-coated fabrics -
Determination of resistance to penetration by water [PCD
13: Rubber and Rubber Products]
“!ा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””ै”
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“Knowledge is such a treasure which cannot be stolen”

IS 7016 (Part 7) :2009
ISO 1420 : 2001
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Indian Standard
METHODS OF TEST FOR COATED AND
TREATED FABRICS
PART 7 RUBBER-OR PLASTICS-COATED FABRICS - DETERMINATION OF
RESISTANCE TO PENETRATION BY WATER
( Second Revision)
ICS 59 080 <10
({.l HIS ?O09
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN. g BAHADun SH/,H ZAYAH r"",AHG

~JEWDELHi'1000;
June 2009 Price Group2
~jATIOr-tALFonEV'/o rm
Th"; InrJ;.]rl Standard ,Pelf! 7, tSeconu Hev,s,on; whicn IS Identical Wlttl ISO l-t20 200i 'HutJber
;H(;1:\S(,CS·crl'ltwJtabncs -.-Deterrnmatlon ofrl:S,st<lrlceto oenetrat.on tJywater"Issued bythe International
IJreJ.H1iL:tt;</,,h rStanrJdrrJll dtlOf1iISO,,...asa'Jop'eoJby[PC f3~ireauotlnoranStandardsontherecornrnendauon
u! 'n·.:Huuc":r andFlu::;t)I!(Products St'C!lc'la:Committeeand approvalotthe Petroleum.Coaland Related
ProductsDivrs.on Council.
Ttus standard was firstoubnsnec In 1973 and subsequently revised In 1986 and secono revrsion IS being
earnedoutto align Itw,thlatestpubhsneo InternationalStandard onthesubject.
Tne text of ISO Standard has been approveo as suuabte for publication as an Indian Standard without
ie,.;at,of1s Cert:1'" convenuonsare.however.no! identicalto those used rn Indian Standards.Attention IS
parncu.artv(Jr,b'inrotrle f'Jlio~'J',n9'
<1\ V/hereverthe words'tnternanonaiStandard'appearreferringtothisstandard,theyshouldbe read as
'intJ!z1l1Standard'
t), Comma;.\~1<.lSbeenusedasaoecima:markerIntheInternationalStandard whileInIndianStandards,
t~": currentpractice is touse :1pomt(.)as thedecimalmarker.
rh >k ,:':r"C.I: ::Hwnlt!t" ! r,'spOf"" bl" ti)[ th,'prt'pc)r;ltltm oftrus stanoard11;\Sreviewed tileprovisronsofthe
tOiluw,rJij lntt'rrutl"ndl Sl,UHLHtls dml !,CIS deCided (hilt ttli!Y iHQacceptable for useIn conjunction with this
:~~'.I;'l:\1r',J
Stdndard .umospheres for cond.trorunq
H,:t,t,,·, ". ':',h!I<." ,'·~\.l!,~d t.ibncs [)l'tprnlln.ttIOI1of roll characteristics
f",rt r Mdll'''b Ii",ft'tI'HTlJrl;\tlon ()t Ir!rH)th. Width and net mass
'" r'.'p-"!'''ii n".' r~·.~:j;ts 'it d t',':.;t (H ,W:IIYSI'S rl1adt' :n accordance with this standartt. If the fHI<l1value.
('t)~~(~r\'~~d :~lr ;:\lli:;l~\\t~_)d. ~..~ !n tho, (!,)ur~dt)'1 off, It shall t)fI done In accordance \Nlth IS 2 1~)f~n 'Hulos tor
IS 7016 (Part 7) : 2009
ISO 1420: 2001
Indian Standard
METHODS OF TEST FOR COATED AND
TREATED FABRICS
PART 7 RUBBER-OR PLASTICS-COATED FABRICS - DETERMINATION OF
RESISTANCE TO PENETRATION BY WATER
( Second Revision)
WARNING - Persons using this International Standard should be familiar with normal laboratory practice.
This standard does not purport to address all of the safety problems, if any. associated with its use. It is
the responsibility of the userto establish appropriate safety and health practices and to ensurecompliance
with any national regulatory conditions.
1 Scope
This International Standard specihes a pass/tail method for the determination of the resistance of rubber- or
plastics-coated tabncs to water penetration (hydrostatic resistance) when subjected to a spcc.t.c hydrostatic
pressure over afixed period of time Two test specimen shapes are given one iscircular,the othersquare
2 Normative references
The following normative documents contamprovistons which, through reference Intrus text,constitute provisrons at
this International Standard. For dated references, subsequent amendments to. or revisions of, any of these
publications do not apply However. parties to agreements based on trusInternational Standard are encouraged to
mvestiqate the POSSibility of applying the most recent editions of the normative documents Indicated below. For
undated references. the latest edition of the normative document referred to applies. Members of ISO and lEG
maintain registers of currently valid International Standards.
ISO 2231:1989,Rubber-or plastics-coatedisbncs - Standardatmospheres forconaiuorunqandtestmg
ISO 2286-1:1998. Rubber- or plastics-coatedtsbrtcs - Oetermmsuon of roll cnsrectenstcs - Part': MethodS for
detenninstion of length, Widthandnetmass
3 Principle
A test specimen of coated labric is subjected to an increasing pressure of water on one face. under standard
conditions. until a predetermined pressure specitied in the coated-fabric specification IS obtained. The reqUired
pressure is maintainedfor a specified time oruntil penetration occurs. whICheveris the sooner.
4 Apparatus
4.1 General
The apparatus shall consist of an open-mouthed vessel fined Witha ctamp to fasten the test specimen over the
mouth. The lowerpart of the vessel shall have a nozzle allowing itto be connected to a water inlet pipe to fill It With
water at room temperature. A retaining mesh is fitted over the test specimen. This mesh shall comprise wires of

1mmto 1,2mm diameterforming squares of side not greaterthan 30 mm.
1
IS 7016 (Part 7) : 2009
ISO 1420: 2001
4.2 Means of measuring water pressure
Either a manometer,connected to the test head,allowing water pressures up to 19,6kPa (200 cmH to be read
20)
to an accuracy of t 1%, or a pressure gauge. graduated in centimetres head of water or in kilopascals and with a
maximum reading of at least 100 kPa (946cmH 0), shall be used to measure the water pressure applied to the
2
test specimen.
4.3 Test area
The open mouth of the vessel (see 4.1) over which the test specimen is clamped shall be eithera square of side
100mm or a circle of orarneter 113mm,gIVing an area of 100cm2 in each case. If necessary, soft rubber sealing
gaskets can be employed between the coated-fabric test specimen and the surlaces of the clamps in order 10
reduce Ihe nsk of damagetothe test specimen byIhe clamps,and tofacilitate the testing of seams. In this respect,
rubber having a hardness of approximately 40IRHD (Intemational Rubber Hardness Degrees) and approximately
0,5cm thick or 1emIndiameter has been found useful. Alternatively, aclosed-cell,crosslinked-polyethylene foam
having a density of 45 kg/m3to 55 kg/m3and approximately1cm thick can also beused.
5 Test specimens
5.1 Taking teat specimens
Take test specimens from anarea with nofunctional orvisible defects and located inthe usable width of the coated
fabric as defined in ISO2286-1.
5.2 Number
Unlessotherwisespecifiedinthe material specification,test five specimens ineach series of tests.
5.3 Shape and cfimenaiona
5.3.1 Square apec:1mena
Each specimenshall be square withsides measuring approximately200 mm.
5.3.2 Circularapec:i~
Each soecirnen shall have adiameterof 130mm10200mm.
5.4 Conditioning
Immediafelypriorto testing.condition the specimens for at least 16h in an appropriate atmosphere in accordance
WIthISO 2231.
6 Procedure
6.1 Test method
With the vessel connected 10Ihe waler Inlet pipe. open the inlet valve and allow the water to run into Ihe vessel
until ,t overflows Check that the topof Ihe vesselIS horizontal by ensuring that Ihe water is uniformly flush with all

edges.Ensure thai the Inlel pIpe IStotallypurged ofair,and also that the level of w I rn th I nd I
lhe zero on the manometer tube ae , e vesse correspo 5 0
or pressure gauge (see 4.2). Place Ihe lest specimen on the vessel with the face
10 be tested (rnoistened pnortothe test) oncontact wilh the water witho t I " .
. u rapping any air underthetest specimen.
2
IS 1016(Part 7) : 2009
ISO 1420: 2001
Fit the retaining mesh (see 41 ) Secure the test specimen and the mesh f,rmly on the vessel uSing the clamp,
takingcare to ensure that the edges of the clamp are completelyparalletwith those ofthe vessel
6.2 Application of pressure
Open the inlet varvesothat the pressure in the vessel gradually Increases at the requrred rate (pressures less than
or equal to 30 kPa shall be attained in 1min ~_ 10 s: pressures of more than 30kPa shall be attained In
2min ±20 s). Venfy the pressure. Once the required pressure has been reached, adjust the inlet valve. if
necessary. and maintain the pressure for the required time (pressures less than or equal to 30kPa shall be
maintained for 2min:pressures of more than 30kPa snail be maintained for 5min).The test duration WIll therefore
be 3min in the former case and 7min in the latter.Then Inspect the visible part of the test specimen In order to
detect whether any water droplets have passed through the coated tabnc. Close the water inlet valve and return
the pressure to zero by opening the evacuation valve. If a leak IS detected in the test specimen clamping zone
during the test, begin again.
7 Expression ofresults
The visible face of the coated fabric shall not have any "water penetrationpoints", nor any trace of moisture. on any
of the five test specimens.A"water penetration point" isconsideredto be any spot in whIChadrop appears as a pin
prick. Penetration occurring exactly on the edges of the clamp shall not be considered to be a ·water penetrahon
point".
8 Test report
The test report shall include the following:
a) a reference to this International Standard;
b) adescriptionof thecoated fabric tested;
c) the conditioning and test atmosphere used;
d) the numberof test specimenstested;
e) whetherthe test specimenswere square orcircular;
f) which side(s) of thecoated fabric were subjected to water pressure;
g) the pressureand the time the pressure wasapplied;
h) whetherthe coatedfabric passedor failed the test;
i) detailsof any deviationsfrom the standardtest procedure;
j) thedate of the test.

3
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edition by refernng to the latest Issue of 'SIS Catalogue' and 'Standards: Monthly Additions'.
This Indian Standard has been developed from Doc No : PCD 13 (2438)
Amendments Issued Since Publication
Amend No Date of Issue Text Affected
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