ASTM B63-2007 金属传导电阻和接触材料的电阻系数用标准试验方法

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【英文标准名称】:StandardTestMethodforResistivityofMetallicallyConductingResistanceandContactMaterials
【原文标准名称】:金属传导电阻和接触材料的电阻系数用标准试验方法
【标准号】:ASTMB63-2007
【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】:B02.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:电导率;电气工程;电气电阻系数;材料;金属;性能;规范(验收);测试
【英文主题词】:contactmaterials;electricalconductors;heatingelements;resistivity;resistors;specificresistance
【摘要】:Inthecaseofmaterialsforresistorsandheatingelements,aknowledgeofresistivityisimportantindeterminingwhetherwireorstripofaspecifiedareaofcrosssectionandlengthwillhavearequiredresistance.Itservesasonebasisfortheselectionofmaterialsforspecificapplicationsanditsmeasurementisanecessaryacceptancetestforresistancematerials.Inthecaseofmaterialsforelectricalcontacts,themeasurementofresistivitycanserveasatestforuniformityofmaterialsofnominallythesamecompositionandstructure.1.1Thistestmethodcoversthedetermination,toaprecisionof2%,oftheelectricalresistivityofmaterialsusedinresistors,heatingelements,andelectricalcontacts,aswellasproductsofpowdermetallurgyprocesseswhichareusedforotherpurposes.Note1-Fordeterminingtheresistivityofelectricalconductors,seeTestMethodB193.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.ItistheresponsibilityoftheuserofthisstandardtobecomefamiliarwithallhazardsincludingthoseidentifiedintheappropriateMaterialSafetyDataSheet(MSDS)forthisproduct/materialasprovidedbythemanufacturer,toestablishappropriatesafetyandhealthpractices,anddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:K10
【国际标准分类号】:77_040_99
【页数】:4P.;A4
【正文语种】: