ASTM E 908-1991 校正气体基准泄漏

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【英文标准名称】:StandardTestMethodforElectrochemicalCriticalPittingTemperatureTestingofStainlessSteels
【原文标准名称】:电化学临界点蚀温度的标准试验方法
【标准号】:ASTMG150-1999(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:G01.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:criticalpittingtemperature;electrochemicaltest;pittingcorrosion;stainlesssteel;Calibration--metals/alloysanalysisinstrumentation;Criticalpittingtemperature;Electrochemicalmeasurements/testing;Pittingcorrosion;Stainlesssteel(corrosion
【摘要】:Thistestmethodprovidesapredictionoftheresistancetostablepropagatingpittingcorrosionofstainlesssteelsandrelatedalloysinastandardmedium(seeNote1).TheCPTtestcanbeusedforproductacceptance,alloydevelopmentstudies,andmanufacturingcontrol.Inthecaseofproductacceptance,thesupplierandusermustagreeuponthepreconditioningofthespecimenwithregardtosurfacefinish.Thetestisnotintendedfordesignpurposessincethetestconditionsacceleratecorrosioninamannerthatdoesnotsimulateanyactualserviceenvironment.AnothermethodtodeterminethepotentialindependentCPTwithanelectrochemicaltechniquehasbeendiscussedintheliterature(1-4).Thistestmethodinvolvesapotentiodynamic(potentialsweep)procedureperformedonspecimensatdifferenttemperatures.Acomparison(2)ofthetestmethoddescribedinthistestmethodandthepotentiodynamictechniquehasindicatednodifferenceinthetestresultobtained.1.1Thistestmethodcoversaprocedurefortheevaluationoftheresistanceofstainlesssteelandrelatedalloystopittingcorrosionbasedontheconceptofthedeterminationofapotentialindependentcriticalpittingtemperature(CPT).1.2Thistestmethodsappliestowroughtandcastproductsincludingbutnotrestrictedtoplate,sheet,tubing,bar,forgings,andwelds,(seeNote1).Note18212;ExamplesofCPTmeasurementsonsheet,plate,tubing,andweldedspecimensforvariousstainlesssteelscanbefoundinRef(1).Seetheresearchreports(Section14).1.3ThestandardparametersrecommendedinthistestmethodaresuitableforcharacterizingtheCPTofausteniticstainlesssteelsandotherrelatedalloyswithacorrosionresistancerangingfromthatcorrespondingtosolutionannealedUNSS31600(Type316stainlesssteel)tosolutionannealedUNSS31254(6%Mostainlesssteel).1.4ThistestmethodmaybeextendedtostainlesssteelsandotheralloysrelatedtostainlesssteelthathaveaCPToutsidethemeasurementrangegivenbythestandardparametersdescribedinthistestmethod.Appropriatetestpotentialandsolutionmustthenbedetermined.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:77_140_20
【页数】:12P.;A4
【正文语种】:英语


【英文标准名称】:Measurementsofradioactivityintheenvironment-Soil-Part1:generalguidelinesanddefinitions.
【原文标准名称】:环境中放射性的测量.土壤.第1部分:一般指南和定义
【标准号】:NFM60-790-1-2005
【标准状态】:现行
【国别】:法国
【发布日期】:2005-12-01
【实施或试行日期】:2005-12-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;环境;一般条件;测量;测量仪器;放射性物质;放射性废物;放射性;土壤分析;土壤普查;土壤;监督(认可);试验
【英文主题词】:
【摘要】:
【中国标准分类号】:F74
【国际标准分类号】:13_080_01;17_240
【页数】:22P;A4
【正文语种】:其他