【英文标准名称】:TestMethodforModuliofElasticityandFundamentalFrequenciesofCarbonandGraphiteMaterialsbySonicResonance
【原文标准名称】:用声谐振法测定碳和石墨材料弹性模量和基频的试验方法
【标准号】:ANSI/ASTMC747-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005-06-08
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:石墨;碳;弹性(流体);耐火材料;弹性模量;试验
【英文主题词】:refractorymaterials;elasticproperties(fluids);graphite;carbon;modulusofelasticity;testing
【摘要】:Thistestmethodcoversthemeasurementofthefundamentaltransverse,longitudinal,andtorsionalfrequenciesofisotropicandanisotropiccarbonandgraphitematerials.Thesemeasuredresonantfrequenciesareusedtocalculatedynamicelasticmoduliforanygrainorientations.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q51
【国际标准分类号】:71_060_10
【页数】:
【正文语种】:英语


【英文标准名称】:StandardTestMethodforAnalysisofHydrogenSulfideinGaseousFuels(LeadAcetateReactionRateMethod)
【原文标准名称】:分析气体燃料中硫化氢的标准试验方法(醋酸铅反应速率法)
【标准号】:ASTMD4084-2007
【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】:D03.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:分析;燃料;气体燃料;硫化氢
【英文主题词】:gaseousfuels;hydrogensulfide;leadacetate
【摘要】:Thistestmethodisusefulindeterminingtheconcentrationofhydrogensulfideingaseoussamplesandinverifyingcompliancewithoperationalneedsand/orenvironmentallimitationsforH2Scontent.TheautomatedperformanceoperationofthismethodallowsunattendedmeasurementofH2Sconcentration.TheuserisreferredtoPracticeD7166forunattendedon-lineuseofinstrumentationbasedupontheleadacetatereactionratemethod.1.1Thistestmethodcoversthedeterminationofhydrogensulfide(H2S)ingaseousfuels.ItisapplicabletothemeasurementofH2Sinnaturalgas,liquefiedpetroleumgas(LPG),substitutenaturalgas,landfillgas,sewagetreatmentoffgasses,recyclegas,flaregasses,andmixturesoffuelgases.Thismethodcanalsobeusedtomeasurethehydrogensulfideconcentrationincarbondioxide.Airdoesnotinterfere.Theapplicablerangeis0.1to16partspermillionbyvolume(ppm/v)(approximately0.1to22mg/m3)andmaybeextendedto100%H2Sbymanualorautomaticvolumetricdilution.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E24
【国际标准分类号】:75_160_30
【页数】:7P.;A4
【正文语种】: