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【英文标准名称】:SpecificationforChlorinatedPoly(VinylChloride)(CPVC)PlasticPipe(SDR-PR)
【原文标准名称】:氯化聚氯乙烯塑料管的规范
【标准号】:ANSI/ASTMF442/F442M-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料管;管;聚氯乙烯
【英文主题词】:Chlorides;Chlorinated;CPVC;Pipelines;Pipes;Plasticpipes;Polyvinylchloride;Vinylchloride
【摘要】:Thisspecificationcoverschlorinatedpoly(vinylchloride)(CPVC)pipemadeinstandardthermoplasticpipedimensionratiosandpressureratedforwater(seeAppendix).IncludedarecriteriaforclassifyingCPVCplasticpipematerialsandCPVCplasticpipe,andrequirementsandtestmethodsformaterials,workmanship,dimensions,sustainedpressure,burstpressure,flattening,andextrusionquality.Methodsofmarkingarealsogiven.Note1TheCPVCpipecoveredbythisspecificationwascoveredpreviouslyinSpecificationD2241.Note2ThesustainedandburstpressuretestrequirementsandthepressureratingsintheAppendixarecalculatedfromstressvaluesobtainedfromtestsmadeonpipe2in.(50mm)andsmaller.However,testsonlargerpipehaveshownthesestressvaluestobevalid.Theproductscoveredbythisspecificationareintendedforusewiththedistributionofpressurizedliquidsonly,whicharechemicallycompatiblewiththepipingmaterials.Duetoinherenthazardsassociatedwithtestingcomponentsandsystemswithcompressedairorothercompressedgasessomemanufacturersdonotallowpneumatictestingoftheirproducts.Consultwithspecificproduct/componentmanufacturersfortheirspecifictestingprocedurespriortopneumatictesting.Note3Pressurized(compressed)airorothercompressedgasescontainlargeamountsofstoredenergywhichpresentserioussafteyhazardsshouldasystemfailforanyreason.Thetextofthisspecificationreferencesnotes,footnotes,andappendixeswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthespecification.Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsportion,Section,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.AspecificprecautionarystatementisgiveninNote0.
【中国标准分类号】:G33
【国际标准分类号】:23_040_20
【页数】:
【正文语种】:英语


【英文标准名称】:StandardTestMethodforCokingValueofTarandPitch(ModifiedConradson)
【原文标准名称】:煤焦油和硬沥青的焦化值(改进的残碳)标准试验方法
【标准号】:ASTMD2416-1984(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1984
【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】:D02.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:cokingvalue;Conradson;Carbonresidue(petroleumproducts);Cokingvalue;Conradsonmethod;Pitch;Residue;Tars
【摘要】:Thistestmethodisusefulforindicatingtherelativecoke-formingpropensitiesandforevaluatingandcharacterizingtarsandpitches.Thistestmethodcanalsobeusedasoneelementinestablishingtheuniformityofshipmentsorsourcesofsupply.FIG.1ApparatusforDeterminingCarbonResidue1.1Thistestmethodcoversthedeterminationofthecokingvalueoftarandpitchhavinganashcontentnotover0.5%asdeterminedbyTestMethodD2415.1.2CokingvaluesbythistestmethodarepracticallythesameasthoseobtainedbyTestMethodD189,butresultsaremorereproducible.Theapparatususedisidentical,exceptthatanelectricfurnaceissubstitutedforthegasflame.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G18;E43
【国际标准分类号】:91_100_50
【页数】:3P.;A4
【正文语种】:英语