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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 14951 (2001): Fire Extinguisher - 135 Litres Capacity Mechanical Foam Type - [CED 22: Fire Fighting] “!ा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” REAFFIRMED 2010 IS 14951 :2001 135 Indian Standard FIRE EXTINGUISHER — 135 LITRES CAPACITY MECHANICAL FOAM TYPE — SPECIFICATION ICS 13.220.10 © BIS2001 BUREAU OF INDIAN STADARDSSTAND~RDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 May 2001 Price Group 4 AMENDMENT NO. 1 APRIL 2005 TO IS 14951: 2001 FIREEXTINGUISHER- 135LITRES CAPACITY MECHANICAL FOAM TYPE SPECIFICATION [ Page 3, clause5, Table 1,51No. (x), col4 I- Substitute 'IS728S' for the existingmatter. ( Page 3,clause9.1)- Substitutethe following for the existing: '9.1 All internal and external surfaces of the body shall becompletely epoxy powder coated to minimum 0.050 mm thickness. The thickness of the coating shall bemeasured as given in IS 3203. The internal surfaceofthebody shall be plastic/rubbercoatedand liningshall beofa minimumthicknessof0.5 mm asan alternativetopowdercoating. 9.1.1 Test for Adhesion of Pastic Lining (Type Test) - Subject the unfilled extinguishertoa pressure 15kgf/cm2and storefor 120+4 h at27 ±SoC. -0 Release the pressure and examine the extinguisher internally for cracking, separationfrom the wall ofthe bodyor liftingofthe lining,and bubblesbetween the liningand the body.' ( Page 3, clause9.1.1 )- Renumber '9.1.1' as '9.2' and delete 'to lead-tin alloy' fromlastline. ( Page 3 clause 10.1)- Insert 'or PostOfficeRed' after 'fire red' and 'or 9 No. 538'after 'No. 536'. ( Page 4 clause11.1.line 5 )- Substitute'1.25m'for 612.5 m', 9 (CED22) ReprographyUnit.81S.NewDelhi,India AMENDMENT NO. 2 FEBRUARY 2010 TO IS 14951 : 2001 FIRE EXTINGUISHER ― 135 LITRES CAPACITY MECHANICAL FOAM TYPE ― SPECIFICATION (Page 3, clause 10.1) ― Substitute the following for the existing: “Each extinguisher body shall be painted either with epoxy powder coating or synthetic enamel paint. The shade shall be ‘Fire Red’ or ‘Post Office Red’ conforming to Shades No. 536 or 538 of IS 5. NOTES 1 Whenever epoxy powder coating is applied on the external surface of mild steel body for anti-corrosive treatment, synthetic enamel paint coating is not required. 2 The body of extinguisher shall be of good finish, clear of all burrs and sharp edges.” (Page 3, clause 10.4) ― Delete. (CED 22) Reprography Unit, BIS, New Delhi, India FireFightingSectional Committee, CEO22 FOREWORD This IndianStandardwas adoptedby the Bureauof IndianStandards, after the draft finalized by the Fire FightingSectionalCommittee hadbeenapprovedbytheCivilEngineering Division Council. 135Litrecapacityfireextinguisher,mechanicalfoamtype,isoneofthelargerversionsofthefireextinguishers. Thistype of extinguisher in whichfoam is expanded by meansof pressureproducedfrom compressedor liquifiedgas from pressurecontainerfilledonto the extinguisher, is suitablefor fightingfires in non-polar flammable liquids. Thecompositionoftechnicalcommittee responsible fortheformulation ofthisstandardisgivenatAnnexC. Forthepurposeofdecidingwhetheraparticularrequirementofthisstandard iscompliedwith,thefinalvalue, observedor calculated,expressingthe resultof a test or analysis, shall be roundedoff in accordancewith IS2: 1960'Rules forroundingoffnumerical values(revised)'. Thenumberofsignificantplacesretainedin theroundedoffvalueshouldbethesameasthatofthespecified valueinthisstandard. IS 14951 : 2001 Indian Standard FIRE EXTINGUISHER-135 LITRES CAPACITY MECHANICAL FOAM TYPE - SPECIFICATION 1 SCOPE 7.1 Body This standard lays down the requirements regarding Circumferentialandhorizontaljointsofthebodyshall material, shape, construction, charge, anti-corrosion beofweldedtype. treatmentandtestsfor 135 litres capacitymechanical 7.1.1 The welded construction beone ofthe types foam fire extinguisher, mounted vertically on trolley given below and shall conform to Indian Standard wheels. mentioned against each: 1 REFERENCES a) Spotwelding(forattachmentoffittingsonly) The Indian Standards listed in Annex A contain shallconform to IS 819, and provisionswhich,throughreferenceintext,constitute b) Metalarc weldingshallconformto IS 9595. povisionsofthisstandard. At the timeofpublication, 7.3Carrying Handle the editions indicated were valid. All standards are subjecttorevisionandpartiestoagreementsbasedon The carrying handle shall bemade ofmild steel rod this standard are encouraged to investigate the or tube ofnot less than25 mm diameter. Iftube, the possibilityofapplyingthe mostrecenteditionsofthe thickness of the sheet used shall be not less than standards given at Annex A. 1.25 mm. 3 CAPACITY 7.4 Neck Ring The total liquidcapacity ofthe containerwhen filled The neck ring shall provide a clear opening ofnot to the specified level, shall be 135 litres. lessthan75mm diameter. Itshallhaveparallelscrew threadsconformingto class AofIS 2643 (Part I) for 4 PRINCIPLE aneffectivelengthofnotless than20 mm, The neck The method ofexpulsion ofliquid foam shall be by ringshallbefirmlyscrewedtothe body by welding. means of pressure produced from compressed or 7.5Cap liquifiedgas from gas cylinderattachedto body. The cap shall bethreaded for not less than 20 mm 5 MATERIAL effective length with parallel threads conforming to The materials for construction are given in Table 1. classAofIS2643(Part 1). At leastfour holesofnot less than 2.5 mm diameter each shall be drilled 6 SHAPE through threads ofthe cap to form vents. Thecentre The shape of the body of the mechanical foam ofthe ventholesshall be minimum 6.5 mm from the extinguisher shall be cylindrical and minimum face ofthe capjointwasher. thickness ofsheet shall be asper the formula DIIOO 7.6SnifterValve where Disthe diameterofthe body inmm. A snifter valve (breathing device) shall be fitted to 7 CONSTRUCTION(for illustration,seeFig. 1) extinguishersfor uprighttype and the design shallbe 7.1 General such that when variation in atmospheric temperature is within ±100ethere shall be no spouting ofliquid The top dome and bottom dish ofthe body shall be throughnozzle. without reverse of curvature and shall be dished outwardstoaradiusnotexceedingtheoutsidediameter 7.7Safety Pressure 'ReleaseValve' ofthebodytowhichthesearefixed orofwhichone of The cap or body shouldhave asafetypressurerelease both form a part ifsolid drawn therewith. valve mechanism by which ifthe pressure inside the 7.1.1 Non-ferrous metal parts shall be mechanically container exceeds 25 kg/ern", the safety pressure tightened and soldered, ifneeded, or brazed to the release valve will release the internal pressure body. automatically. IS 14951 : 2001 7.8 Liquid Level Indicator 7.12Drain Plul The135litreslevelofthesolutioninsidethebodyshall Atthebottomofthebodyadrainplugofsize25mm beindicatedontheexteriorofthebody. Itshallalsobe withrobberwashershallbe fitted. pennanentlyindicatedintheinterior,ormeansshallbe providedtodemonstratethatthesolutionleveliscorrect. 7.13 Wbeeled Carriage Thefireextinguishershallbeprovidedwithwheeled 7.9Hose carriagewithrubber-tyredwheelsofsize405mmx Thedischargehoseshallhaveaboreofnotlessthan SO mmx 2Smmandaxleofmildsteelrodof25 mm 19mmanda lengthofnotJessthan6 m. minimum diameter. 7.10 Foam Making Brancb and Otber Disebarge 7.14 The CO gas cylinderof 1kg capacity shall 2 Fittings confirmtoIS7285. The design of the foam making branch and other 8 CHARGE discharge fittings shall be such that when the extinguisherissetinoperation, it shallbecapableof The charge shall consist of foam concentrate dischargingfoamasgiveninIt.1. conformingtoIS4989 (Part2) andquantitynot less than81(for6percentconcentrate)or41(for3percent 7.11SyphonTube concentrate)and balancequantity ofwater to make Thesyphontube shallbefittedinsidethebody. thefoamwatersolutionto 135litres. SNIFFER VALVE----........-- COz CYLINDER NOZZLE SYPHON TUBE ~""----llo--~ .............--CO SYPHON TUBE 2 BOTTOM RING.".'----o.......-------~ ~t;J::I.··2U- ADAPTER IALl VALVE NOZZL! FOR MECHANICAL FOAM TYP! FIG. 1135LITRESCAPACITY MECHANICAL FOAM FIREEXTINGUISHER 2