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【英文标准名称】:StandardPracticeforPreparingCoalSamplesforMicroscopicalAnalysisbyReflectedLight
【原文标准名称】:煤炭抽样制备的反光显微镜分析
【标准号】:ASTMD2797/D2797M-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D05.28
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Anthracite;Lightanalysis;Microscopicexamination--coal;Reflectanceandreflectivity--coal;Reflectedlightanalysis;Specimenpreparation(fortesting)--coal/coke
【摘要】:Briquetsofgranularbituminouscoalsandanthracitepreparedinaccordancewiththelaboratoryproceduresofthispracticewillhaveflat,scratch-freesurfacessuitableforexaminationwithamicroscopeusingreflectedlightillumination.Thepolishedsurfacesofbriquettespreparedbythispracticewillcontainparticlesrepresentativeoftheoriginalgrosssample.Samplespreparedbythispracticeareusedformicroscopicaldeterminationofthereflectanceoftheorganiccomponentsinapolishedspecimenofcoal(TestMethodD2798)andformicroscopicaldeterminationofthevolumepercentofphysicalcomponentsofcoal(TestMethodD2799).1.1Thispracticecoverslaboratoryproceduresforthepreparationofgranularsamplesofbituminouscoalandanthracitesamplesforexaminationwithamicroscopeusingreflectedlightillumination.Itdoesnotapplytothepreparationoforientedblocksofcoal.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressthesafetyconcernsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:D21
【国际标准分类号】:73_040
【页数】:5P.;A4
【正文语种】:英语