ASTM F2263-2007e1 评定聚乙烯管(PE)抗氯化水氧化性的标准试验方法

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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】:


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MIL-C-7350F (NOTICE 1), MILITARY SPECIFICATION: CLOTH, PARACHUTE, NYLON (12 NOV 1987)., MIL-C-7350F, dated 06 July 1981, has been reviewed and determined to be current.【英文标准名称】:StrengthofCouplingMechanismFiberOpticInterconnectingDevices
【原文标准名称】:光纤连接器件的耦合机械强度
【标准号】:ANSI/EIA/TIA455-185-1991
【标准状态】:现行
【国别】:美国
【发布日期】:1991
【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】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Theintentofthisprocedureistoassurethatthecouplingmechanismofaconnectorsetorconnector-devicecombinationwillwithstandtheaxialloadslikelytobeappliedduringnormalservie.
【中国标准分类号】:L23
【国际标准分类号】:33_180_20
【页数】:
【正文语种】:英语