ANSI/ASTM B799-1995 亚硫酸/二氧化硫蒸气测定金和钯镀层孔隙度的方法

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【英文标准名称】:TestMethodforPorosityinGoldandPalladiumCoatingsbySulfurousAcid/Sulfur-DioxideVapor
【原文标准名称】:亚硫酸/二氧化硫蒸气测定金和钯镀层孔隙度的方法
【标准号】:ANSI/ASTMB799-1995
【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】:焊接点材料;钯;金属覆层;金覆层;试验
【英文主题词】:palladium;testing;contactmaterial;goldcoatings;metalcoatings
【摘要】:Thistestmethodcoversequipmentandmethodsfordeterminingtheporosityofgoldandpalladiumcoatings,particularlyelectrodepositsandcladmetalsusedonelectricalcontacts.Thistestmethodisdesignedtoshowwhethertheporositylevelislessorgreaterthansomevaluewhichbyexperienceisconsideredbytheusertobeacceptablefortheintendedapplication.Avarietyofotherporositytestingmethodsaredescribedintheliterature.OtherporositytestmethodsareB735,B741,B798,andB809.AnASTMGuidetotheselectionofporositytestsforelectrodepositsandrelatedmetalliccoatingsisavailableasGuideB765.ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.ItistheresponsibilityoftheuserofthisstandardtobecomefamiliarwithallhazardsincludingthoseidentifiedintheappropriateMaterialSafetyDataSheet(MSDS)forthisproduct/materialasprovidedbythemanufacturer,toestablishappropriatesafetyandhealthpractices,anddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazards,seeSection.
【中国标准分类号】:H68
【国际标准分类号】:25_220_40
【页数】:
【正文语种】:英语