【英文标准名称】:StandardTestMethodforDeterminationofLeachableChlorideinPackingandGasketingMaterialsbyIon-SelectiveElectrodeTechnique
【原文标准名称】:用离子选择电极技术测定包装和衬垫材料中可沥虑氯化物的标准测试方法
【标准号】:ASTMF1277-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:F03.50
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:电势分析法;浸出;氯化物;密封件;试验
【英文主题词】:ion-selectiveelectrodetechnique;leachablechloride;packingandgasketingmaterials
【摘要】:Chlorideionishighlydetrimentaltothevalves,flanges,piping,etc.ofstainlesssteelandcopper-bearingalloysemployedincertaintypesoffacilities,suchasnuclearandchemicalplants.Therefore,theamountofchlorideionthatcanbeleachedfrompackingandgasketingmaterialsusedinthesefacilitiesmustbecontrolledcloselyforpreventionofdamage.Thistestmethodissuitableformanufacturingcontrolandforverifyingthatthepackingandgasketingmaterialmeetsspecifications.Itisassumedthattheusersofthistestmethodwillbeanalystscapableofperformingcommonlaboratoryproceduresskillfullyandsafely.ItisrecommendedthattheworkwillbeperformedinaproperlyequippedlaboratoryunderappropriatequalitycontrolpracticessuchasthosedescribedinGuideE882.1.1Thistestmethodprovidesforthemeasurementofchlorideionleachedfromflexiblegraphite,asbestos,orpaper-basedpackingandgasketingmaterials.Samplescontaining7to6700gCl-/gsamplecanbeanalyzedwiththisprocedure.Theupperconcentrationlimitcanbeextendedbydilutionofthetestsolution.1.2Itistheresponsibilityoftheanalysttoensurethevalidityofthistestmethodforotherpackingorgasketingmaterials.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Aspecificwarningstatementisgivenin8.3.
【中国标准分类号】:A80
【国际标准分类号】:91_100_50
【页数】:5P.;A4
【正文语种】: