ANSI/ASTM B741-1995 纸电谱法测量金属基体上金涂层孔隙率的方法

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【英文标准名称】:TestMethodforPorosityinGoldCoatingsonMetalSubstratesbyPaperElectrography
【原文标准名称】:纸电谱法测量金属基体上金涂层孔隙率的方法
【标准号】:ANSI/ASTMB741-1995
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【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】:试验;孔隙率;金;覆层;金属
【英文主题词】:coatings;testing;metals;porosity;gold
【摘要】:Thistestmethodcoversequipmentandtechniquesfordeterminingporosityingoldcoatings,particularlyelectrodepositsandcladmetalsusedonelectricalcontacts.Thistestmethodisdesignedtoshowwhethertheporositylevelislessorgreaterthansomevaluewhichbyexperienceisconsideredbytheusertobeacceptablefortheintendedapplication.Thistestmethodissuitableforflatsurfaces,orwithappropriatefixtures,forgentlycurvedsurfaces.AvarietyofotherporositytestingmethodsaredescribedinGuideB765andintheliterature.Detailedcriticalreviewsofporositytestingarealsoavailable.OtherporositytestmethodsareB735,B798,B799andB809.Thistestmethodisspecificallydesignedforusewithgoldcoatings(95%gold)onsubstratesofcopperandnickelandtheiralloys.Althoughnotcoveredinthisstandard,variationsofthistestmethodmaybefoundusefulinevaluatingcoatingsotherthangold.ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesinparenthesisareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortoitsuse.Foraspecificprecautionarystatement,seeNote1.
【中国标准分类号】:H60
【国际标准分类号】:25_220_40
【页数】:
【正文语种】:英语