【英文标准名称】:ClassificationofInsulatingFirebrick
【原文标准名称】:绝热耐火砖的分类
【标准号】:ASTMC155-1988
【标准状态】:作废
【国别】:美国
【发布日期】:1988
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:测定;绝缘;分类系统;耐火砖;耐火材料
【英文主题词】:fireclaybricks;determination;refractorymaterials;insulations;classificationsystems
【摘要】:
【中国标准分类号】:Q45
【国际标准分类号】:91_100_20
【页数】:1P;A4
【正文语种】:英语


【英文标准名称】:Petroleumproductsandrelatedmaterials-Determinationofhydrocarbontypes-Fluorescentindicatoradsorptionmethod;GermanversionEN15553:2007
【原文标准名称】:石油产品和相关原料.烃类型的测定.荧光指示剂吸附法
【标准号】:DINEN15553-2007
【标准状态】:现行
【国别】:德国
【发布日期】:2007-07
【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】:吸附指示剂;吸附法;芳烃;化合物;含量;定义;测定;含量测定;荧光指示剂;烃类;指示剂;数学计算;链烯;石油产品;精密度;饱和烃
【英文主题词】:
【摘要】:ThisEuropeanStandardspecifiesafluorescentindicatoradsorptionmethodforthedeterminationofhydrocarbontypesovertheconcentrationrangesfrom5%(V/V)to99%(V/V)aromatichydrocarbons,0,3%(V/V)to55%(V/V)olefinichydrocarbons,and1%(V/V)to95%(V/V)saturatedhydrocarbonsinpetroleumfractionsthatdistilbelow315℃.Thismethodmaybeapplicabletoconcentrationsoutsidetheseranges,buttheprecisionhasnotbeendetermined.Whensamplescontainingoxygenatedblendingcomponentsareanalysed,thehydrocarbontyperesultscanbereportedonanoxygenate-freebasisor,whentheoxygenatecontentisknown,theresultscanbecorrectedtoatotal-samplebasis.Thistestmethodisforusewithfullboilingrangeproducts.Cooperativedatahaveestablishedthattheprecisionstatementdoesnotapplytopetroleumfractionswithnarrowboilingrangesnearthe315℃limit.Suchsamplesarenotelutedproperly,andresultsareerratic.Samplescontainingdark-colouredcomponentsthatinterferewithreadingthechromatographicbandscannotbeanalysed.NOTEITheoxygenatedblendingcomponentsmethanol,ethanol,tert-butylmethylether(MTBE),methyltert-pentylether(TAME)andtert-butylethylether(ETBE)donotinterferewiththedeterminationofhydrocarbontypesatconcentrationsnormallyfoundincommercialblends.Theseoxygenatedcompoundsarenotdetectedsincetheyelutewiththealcoholdesorbent.Theeffectsofotheroxygenatedcompoundsshouldbeindividuallyverified.NOTE2ForthepurposesofthisEuropeanStandard,theterms"%(m/m)"and"%(VA/)"areusedtorepresentrespectivelythemassfractionandthevolumefraction.WARNINGmTheuseofthisEuropeanStandardmayinvolvehazardousmaterials,operationsandequipment.ThisEuropeanStandarddoesnotpurporttoaddressallofthesafetyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:18P;A4
【正文语种】:德语