【英文标准名称】:StandardSpecificationforChlorinatedPoly(VinylChloride)(CPVC)PlasticPipe(SDRx2013;PR)
【原文标准名称】:氯化聚氯乙烯(CPVC)塑料管(SDR-PR)标准规范
【标准号】:ASTMF442/F442M-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F17.25
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:Chlorinatedpoly(vinylchloride)(CPVC)pipe--specifications;Watersupply/distributionsystems--specifications
【摘要】:1.1Thisspecificationcoverschlorinatedpoly(vinylchloride)(CPVC)pipemadeinstandardthermoplasticpipedimensionratiosandpressureratedforwater(seeAppendix).IncludedarecriteriaforclassifyingCPVCplasticpipematerialsandCPVCplasticpipe,andrequirementsandtestmethodsformaterials,workmanship,dimensions,sustainedpressure,burstpressure,flattening,andextrusionquality.Methodsofmarkingarealsogiven.Note18212;TheCPVCpipecoveredbythisspecificationwascoveredpreviouslyinSpecificationD2241.Note28212;ThesustainedandburstpressuretestrequirementsandthepressureratingsintheAppendixarecalculatedfromstressvaluesobtainedfromtestsmadeonpipe2in.(50mm)andsmaller.However,testsonlargerpipehaveshownthesestressvaluestobevalid.1.2Theproductscoveredbythisspecificationareintendedforusewiththedistributionofpressurizedliquidsonly,whicharechemicallycompatiblewiththepipingmaterials.Duetoinherenthazardsassociatedwithtestingcomponentsandsystemswithcompressedairorothercompressedgasessomemanufacturersdonotallowpneumatictestingoftheirproducts.Consultwithspecificproduct/componentmanufacturersfortheirspecifictestingprocedurespriortopneumatictesting.Note38212;Pressurized(compressed)airorothercompressedgasescontainlargeamountsofstoredenergywhichpresentserioussafteyhazardsshouldasystemfailforanyreason.1.3Thetextofthisspecificationreferencesnotes,footnotes,andappendixeswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthespecification.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.Withinthetext,theSIunitsareshowninbrackets.1.5Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsportion,Section8,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.AspecificprecautionarystatementisgiveninNote6.
【中国标准分类号】:
【国际标准分类号】:23_040_20
【页数】:8P.;A4
【正文语种】:英语