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BS DD CEN/TS 15150-2005 固体生物燃料.颗粒密度的测定方法

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【英文标准名称】:Solidbiofuels—Methodsforthedeterminationofparticledensity
【原文标准名称】:固体生物燃料.颗粒密度的测定方法
【标准号】:BSDDCEN/TS15150-2005
【标准状态】:作废
【国别】:英国
【发布日期】:2006-02-02
【实施或试行日期】:2006-02-02
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:生物燃料;生物的;生物量;成型煤;定义;密度;密度测量;测定;燃料;材料试验;数学计算;方法;数量密度;丸状材料;固体燃料;试验
【英文主题词】:Biofuels;Biological;Biomass;Briquettes;Definition;Definitions;Densimetry;Density;Densitymeasurement;Determination;Fuels;Materialstesting;Mathematicalcalculations;Methods;Numberdensity;Pellets;Solidfuels;Testing
【摘要】:ThisTechnicalSpecificationdescribesthemethodfordeterminingtheparticledensityofcompressedfuelssuchaspelletsorbriquettes.Particledensityisnotanabsolutevalueandconditionsforitsdeterminationhavetobestandardisedtoenablecomparativedeterminationstobemade.NOTEParticledensityissubjecttovariationduetothesusceptibilityoforganicmaterialtoenvironmentalortechnicalimpactssuchasairhumidity,vibration,abrasionorbiodegradation.Particledensitycanthereforevaryduringtime,thusthemeasuredvaluesshouldberegardedasamomentaryfuelproperty.
【中国标准分类号】:D20
【国际标准分类号】:75_160_10
【页数】:16P.;A4
【正文语种】:英语


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【英文标准名称】:Prevailingtorquetypeall-metalhexagonnuts,style2.Propertyclasses5,8,10and12.
【原文标准名称】:2型通用扭矩全金属六角螺母.性能等级5,8,10和12
【标准号】:NFE25-420-1997
【标准状态】:现行
【国别】:法国
【发布日期】:1997-12-01
【实施或试行日期】:1997-12-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:螺母;长效扭矩式;强度等级;防松螺母;紧固件;六角螺母;六角头紧固件;螺纹;公差(测量);材料强度;机械性能;自锁紧;材料;规范(验收);交货条件;作标记;尺寸;金属;验收规范;特性;名称与符号
【英文主题词】:
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:21_060_20
【页数】:10P;A4
【正文语种】:其他


【英文标准名称】:StandardTestMethodforTraceImpuritiesinMonocyclicAromaticHydrocarbonsbyGasChromatographyandExternalCalibration
【原文标准名称】:用气相色谱法和外部校准法对单环芳香烃中微量杂质的标准试验方法
【标准号】:ASTMD5917-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:D16.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:化工技术;芳烃;杂质;气相色谱法;测试
【英文主题词】:aromatics;externalstandard;gaschromatography;impurities;purity;toluene;xylenes
【摘要】:Determiningthetypeandamountofhydrocarbonimpuritiesremainingfromthemanufactureoftoluene,mixedxylenes,andp-xylenesusedaschemicalintermediatesandsolventsisoftenrequired.Thistestmethodissuitableforsettingspecificationsandforuseasaninternalqualitycontroltoolwheretheseproductsareproducedorareused.Typicalimpuritiesare:alkanescontaining1to10carbonsatoms,benzene,toluene,ethylbenzene(EB),xylenes,andaromatichydrocarbonscontainingninecarbonatoms.5.1.1RefertoTestMethodD2306fordeterminingtheC8aromatichydrocarbondistributioninmixedxylenes.Purityiscommonlyreportedbysubtractingthedeterminedexpectedimpuritiesfrom100.00.However,agaschromatographicanalysiscannotdetermineabsolutepurityifunknownorundetectedcomponentsarecontainedwithinthematerialbeingexamined.ThistestmethodissimilartoTestMethodD2360,however,interlaboratorytestinghasindicatedabiasmayexistbetweenthetwomethods.Thereforetheuseriscautionedthatthetwomethodsmaynotgivecomparableresults.1.1Thistestmethodcoversthedeterminationofthetotalnonaromatichydrocarbonsandtracemonocyclicaromatichydrocarbonsintoluene,mixedxylenes,andp-xylenesbygaschromatography.Thepurityoftoluene,mixedxylenes,orp-xylenescanalsobecalculated.Calibrationofthegaschromatographicsystemisdonebytheexternalstandardcalibrationtechnique.Asimilartestmethod,usingtheinternalstandardcalibrationtechnique,isTestMethodD2360.1.2Totalaliphatichydrocarbonscontaining1through10carbonatoms(methanethroughdecanes)canbedetectedbythistestmethodatconcentrationsrangingfrom0.001to2.500weight%.1.2.1Asmallamountofbenzeneinmixedxylenesorp-xylenesmaynotbedistinguishedfromthenonaromaticsandtheconcentrationsaredeterminedasacomposite(see6.1).1.3Monocyclicaromatichydrocarbonimpuritiescontaining6through10carbonatoms(benzenethroughC10aromatics)canbedetectedbythistestmethodatindividualconcentrationsrangingfrom0.001to1.000weight%.1.4Thefollowingappliestoallspecifiedlimitsinthistestmethod:forpurposesofdeterminingconformancewiththistestmethod,anobservedvalueoracalculatedvalueshallberoundedoff"tothenearestunit"inthelastright-handdigitusedinexpressingthespecificationlimit,inaccordancewiththerounding-offmethodofPracticeE29.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatement,seeSection9.
【中国标准分类号】:G17
【国际标准分类号】:71_040_50;71_080_15
【页数】:8P.;A4
【正文语种】: