ASTM E15 用道路表面高程剖面记录计算出均方数值
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来源:标准资料网
【英文标准名称】:MethodsofRadiographicTestingofMetalCastings
【原文标准名称】:用道路表面高程剖面记录计算出均方数值
【标准号】:ASTME15
【标准状态】:作废
【国别】:
【发布日期】:
【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】:
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:数学计算;道路建筑;道路上层结构;建筑
【英文主题词】:
【摘要】:
【中国标准分类号】:P66
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:DummyHolePlates(SpectacleFlanges);MatingDimensionsaccordingtoNominalPressure10and16
【原文标准名称】:盲孔板(双孔法兰).按公称压力10和16设计的配合尺寸
【标准号】:DIN86042-1978
【标准状态】:现行
【国别】:德国
【发布日期】:1978-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:压力;砝码;造船;双环法兰;尺寸;材料
【英文主题词】:weights;materials;dimensions;spectacleflanges;shipbuilding;pressure
【摘要】:Spectacleflanges;matingdimensionsaccordingtonominalpressures10and16
【中国标准分类号】:U55
【国际标准分类号】:2820
【页数】:3P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforDeterminationofTraceElementsinGlassSamplesUsingInductivelyCoupledPlasmaMassSpectrometry(ICP-MS)
【原文标准名称】:用感应耦合等离子体质谱法(ICP-MS)测定玻璃样品中痕量元素的标准试验方法
【标准号】:ASTME2330-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:E30.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:forensicscience;glasscomparisons;glassmeasurement;traceelementalanalysis
【摘要】:Thistechniqueisdestructive,inthattheglassfragmentsmayneedtobecrushed,andmustbedigestedinacid.AlthoughtheconcentrationrangesofthecalibrationcurvesshowninAppendixX1areapplicabletosodalimeandborosilicateglass,thismethodisusefulfortheaccuratemeasurementoftraceelementsfromawidevarietyofglasssamples.Thedeterminationtheelementalconcentrationsinglassallowsforadditionaldatathatcanbecomparedbetweenfragments.Astandardized,validatedmethodcanaidintheinterchangeofdatabetweenlaboratories.Itshouldberecognizedthatthemethodmeasuresthebulkconcentrationofthetargetelements.Anyextraneousmaterialpresentontheglassthatisnotremovedbeforedigestionmayresultinameasurablydifferentconcentrationoftheelements.Theprecisionandaccuracyofthemethodshouldbeestablishedineachlaboratorythatemploysthemethod.Confidenceintervalsorasimilarstatisticalqualitystatementshouldbequotedalongwithanyreportedconcentrationvalue.1.1Thistestmethodcoversaprocedureforelementalanalysisofmagnesium(Mg),aluminum(Al,titanium(Ti),manganese(Mn),gallium(Ga),rubidium(Rb),strontium(Sr),zirconium(Zr),antimony(Sb),barium(Ba),lanthanum(La),cerium(Ce),samarium(Sm),hafnium(Hf)andlead(Pb)inthebulkofglasssamples(irregularlyshapedandassmallas200micrograms)forthecomparisonoffragmentsofaknownsourcetotherecoveredfragmentsfromaquestionedsource.Theseelementsarepresentinsodalimeandborosilicateglassinngg-1to%levels.Alternativemethodsforthedeterminationofelementalanalysisofglassarelistedinthereferences.Thisproceduremayalsobeapplicabletootherelements,othertypesofglass,orotherconcentrationrangeswithappropriatemodificationsofthedigestionprocedure(ifneededforfullrecoveryoftheadditionalelements)andthemassspectrometerconditions.Theadditionofcalciumandpotassium,forexample,couldbeaddedtothelistofanalytesinamodifiedanalysisscheme.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q33
【国际标准分类号】:71_040_40;81_040_10
【页数】:6P.;A4
【正文语种】:
