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【英文标准名称】:StandardTestMethodforEvaluatingtheOxidativeResistanceofPolyethylene(PE)PipetoChlorinatedWater
【原文标准名称】:评定聚乙烯管(PE)抗氯化水氧化性的标准试验方法
【标准号】:ASTMF2263-2007e1
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:F17.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:氯化的;评定;聚乙烯;管;抵抗;水
【英文主题词】:chlorineresistance;oxidativeresistance;pipe;polyethylene
【摘要】:1.1Thistestmethoddescribesthegeneralrequirementsforevaluatingthelong-term,chlorinatedwater,oxidativeresistanceofpolyethylene(PE),usedincoldwatersupplyorservicesystemsbyexposuretochlorinatedwater.Thistestmethodoutlinestherequirementsofapressurizedflow-throughtestsystem,typicaltestpressures,test-fluidcharacteristics,failuretype,anddataanalysis.Note1Otherknowndisinfectingsystems(chlorinedioxide,ozone,andchloramine)arecurrentlyusedforprotectionofpotablewater;however,free-chlorineisbyfarthemostcommonsysteminusetoday.Disinfectingsystemsotherthanchlorinehavenotbeenevaluatedbythismethod.1.2Guidelinesandrequirementsfortesttemperatures,testhoopstresses,andothertestcriteriahavebeenestablishedbypriortestingofPEpipe.OtherrelatedsystemcomponentsthattypicallyappearinaPEcoldwatersupplyorservicesystemcanbeevaluatedwiththePEpipe.WhentestingPEpipeandfittingsasasystem,itisrecommendedthattheanticipatedend-usefittingtype(s)andmaterial(s)beincludedinthetestcircuitsinceitisknownthatsomefittingtypesandmaterialscanimpactfailuretimes.Specimensusedshallberepresentativeofthepipingproduct(s)andmaterial(s)underinvestigation.Note2Theproceduresdescribedinthistestmethod(withsomemodificationsoftesttemperaturesorstresses,orboth)havebeenusedtoevaluatepipesmanufacturedfrompolybutylene(PB),crosslinkedpolyethylene(PEX),polypropylene(PP),multilayer(polymer-metalcomposite),copper,andstainlesssteel.1.3ThistestmethodisapplicabletoPEpipeandsystemsusedfortransportofpotablewatercontainingfree-chlorinefordisinfectingpurposes.Theoxidizingpotentialofthetest-fluidspecifiedinthistestmethodexceedsthattypicallyfoundinpotablewatersystemsacrosstheUnitedStates.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonlyandarenotconsideredstandard.Thefollowingprecautionarycaveatpertainsonlytothetestmethodportion,Section,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G33
【国际标准分类号】:23_040_20
【页数】:6P.;A4
【正文语种】:


【英文标准名称】:Fillerrodsandwiresforgas-shieldedarcwelding-Specificationforcopperandcopperalloys
【原文标准名称】:气体保护电弧焊用焊条和焊丝.第3部分:铜和铜合金规范
【标准号】:BS2901-3-1990
【标准状态】:作废
【国别】:英国
【发布日期】:1990-09-30
【实施或试行日期】:1990-09-30
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:作标记;尺寸公差;直径;焊接;宽度;铜合金;铜;填充金属;金属弧焊;长度;电弧焊接设备;卷筒(物料装卸设备);化学成分;电弧焊接;填充金属丝;焊接设备;重量;焊条;气体保护焊
【英文主题词】:
【摘要】:
【中国标准分类号】:J33;H62
【国际标准分类号】:25_160_20
【页数】:12P;A4
【正文语种】:英语