ASTM E55-1991(2005) 测定化学成分用锻制有色金属及其合金铸件的取样

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【英文标准名称】:StandardPracticeforSamplingWroughtNonferrousMetalsandAlloysforDeterminationofChemicalComposition
【原文标准名称】:测定化学成分用锻制有色金属及其合金铸件的取样
【标准号】:ASTME55-1991(2005)
【标准状态】:现行
【国别】:
【发布日期】:1991
【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】:E01.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:化学分析和试验;抽样方法;金属;可锻合金;分析;工艺;测定;化学成分;有色金属;合金
【英文主题词】:alloys;sampling;wroughtnonferrousmetals
【摘要】:1.1Thispracticecoversthesampling,forthedeterminationofchemicalcomposition(Note1),ofnonferrousmetalsandalloysthathavebeenreducedtotheirfinalformbymechanicalworking;thatis,bysuchmeansasrolling,drawing,andextruding.1.1.1RefertoPracticeE255forcopperandcopperalloys.Note1--Theselectionofcorrectportionsofmaterialandthepreparationofarepresentativesamplefromsuchportionsarenecessaryprerequisitestoeveryanalysis,theanalysisbeingofnovalueunlessthesampleactuallyrepresentstheaveragecompositionofthematerialfromwhichitwasselected.1.2Inspecialcases,whenagreeduponbythepurchaserandthemanufacturer,theheatanalysismaybeacceptedasrepresentativeofthecompositionofthefinishedproduct.Insuchcases,theidentityofeachheatofmetalshouldbemaintainedthrougheachstageofthemanufacturingprocesstothefinalform.Thismethodofsamplingisnotintendedtoapplyundertheseconditions.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H10
【国际标准分类号】:77_040_30
【页数】:2P.;A4
【正文语种】: