ZB B 33015-1987 出口棉籽中棉酚总量的测定方法
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基本信息
| 标准名称： | 出口棉籽中棉酚总量的测定方法 |
| 中标分类： | 农业、林业 >> 经济作物 >> 油料作物与产品 |
| 替代情况： | 转化为SN 33015-87 |
| 发布日期： | |
| 实施日期： | 1991-07-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： |
适用范围
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前言
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目录
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引用标准
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所属分类： 农业 林业 经济作物 油料作物与产品
下载地址: 点击此处下载
【英文标准名称】:StandardGuideforMetalsFreeSteamDeactivationofFreshFluidCrackingCatalysts
【原文标准名称】:淡水分裂催化剂的金属自由蒸汽去活化作用标准指南
【标准号】:ASTMD4463-1996(2006)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:D32.04
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:润滑剂;石油产品;催化剂;蒸气;试验
【英文主题词】:catalysts;cracking;ceactivation;hydrothermaltreatment;steamdeactivationoffreshfluidcrackingcatalysts;steamdeactivation
【摘要】:Ingeneral,steamtreatmentofFCCcatalystcanbeusedeithertocompareaseriesofcrackingcatalystsatasimulatedequilibriumconditionorconditions,ortosimulatetheequilibriumconditionofaspecificcrackingunitandaspecificcatalyst.Thisguidegivesanexampleforthefirstpurposeandanapproachforthelatterpurpose.1.1Thisguidecoversthedeactivationoffreshfluidcatalyticcracking(FCC)catalystbyhydrothermaltreatmentpriortothedeterminationofthecatalyticcrackingactivityinthemicroactivitytest(MAT).1.2ThehydrothermaltreatmentoffreshFCCcatalyst,priortotheMAT,isimportantbecausethecatalyticactivityofthecatalystinitsfreshstateisaninadequatemeasureofitstruecommercialperformance.Duringoperationinacommercialcrackingunit,thecatalystisdeactivatedbythermal,hydrothermalandchemicaldegradation.Therefore,tomaintaincatalyticactivity,freshcatalystisadded(semi)continuouslytothecrackingunit,toreplacecatalystlostthroughthestackorbywithdrawal,orboth.Understeadystateconditions,thecatalystinventoryoftheunitiscalledequilibriumcatalyst.Thiscatalysthasanactivitylevelsubstantiallybelowthatoffreshcatalyst.Therefore,artificiallydeactivatingafreshcatalystpriortodeterminationofitscrackingactivityshouldprovidemoremeaningfulcatalystperformancedata.1.3DuetothelargevariationsinpropertiesamongfreshFCCcatalysttypesaswellasbetweencommercialcrackingunitdesignsoroperatingconditions,orboth,nosinglesetofsteamdeactivationconditionsisadequatetoartificiallysimulatetheequilibriumcatalystforallpurposes.1.3.1Inaddition,therearemanyotherfactorsthatwillinfluencethepropertiesandperformanceoftheequilibriumcatalyst.Theseinclude,butarenotlimitedto:depositionofheavymetalssuchasNi,V,Cu;depositionoflightmetalssuchasNa;contaminationfromattritedrefractoryliningsofvesselwalls.Furthermore,commerciallyderivedequilibriumcatalystrepresentsadistributionofcatalystsofdifferentages(fromfreshto>300days).Despitetheseapparentproblems,itispossibletoobtainreasonablycloseagreementbetweentheperformancesofsteamdeactivatedandequilibriumcatalysts.Itisalsorecognizedthatitispossibletosteamdeactivateacatalystsothatitspropertiesandperformancepoorlyrepresenttheequilibrium.Itisthereforerecommendedthatwhenassessingtheperformanceofdifferentcatalysttypes,acommonsteamingconditionbeused.Catalystdeactivationbymetalsdepositionisnotaddressedinthisguide.1.4Thisguideofferstwoapproachestosteamdeactivatefreshcatalysts.Thefirstpartprovidesspecificsetsofconditions(time,temperatureandsteampressure)thatcanbeusedasgeneralpre-treatmentspriortocomparisonoffreshFCCcatalystMATactivities(TestMethodD3907)oractivitiesplusselectivities(TestMethodD5154).1.4.1ThesecondpartprovidesguidanceonhowtopretreatcatalyststosimulatetheirdeactivationinaspecificFCCUandsuggestscatalystpropertieswhichcanbeusedtojudgeadequacyofthesimulation.ThistechniqueisespeciallyusefulwhenexamininghowdifferenttypesofcatalystmayperforminaspecificFCCU,providednootherchanges(catalystadditionrate,regeneratortemperature,contaminantmetalslevels,etc.)occur.Thisapproachcoverscatalystphysicalpropertiesthatcanbeusedasmonitorstoindicatetheclosenesstoequilibriumcatalystproperties.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesan......
【中国标准分类号】:G74
【国际标准分类号】:71_040_30
【页数】:3P.;A4
【正文语种】:
【英文标准名称】:Textilemachinery;knittingmachines;nameplateinformation;identicalwithISO8121:1986
【原文标准名称】:纺织机械.针织机.商标内容
【标准号】:DINISO8121-1990
【标准状态】:作废
【国别】:德国
【发布日期】:1990-08
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:Textilnorm
【标准类型】:()
【标准水平】:()
【中文主题词】:规范;信息;标志;名牌;针织机械;布置;纺织机械;作标记;纺织机械及附件
【英文主题词】:Dimensions;Fineness;Information;Knittingmachinery;Knittingmachines;Layout;Marking;Nameplates;Signs;Specifications;Textilemachineryandaccessories;Textilemachines;Textiles
【摘要】:Thisstandardspecifiestheminimuminformationthatshallbeprovidedbythenameplatesonknittingmachinesandalsohowthatinformationshallbepresented.
【中国标准分类号】:W96
【国际标准分类号】:59_120_40
【页数】:3P;A4
【正文语种】:德语
【原文标准名称】:淡水分裂催化剂的金属自由蒸汽去活化作用标准指南
【标准号】:ASTMD4463-1996(2006)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:D32.04
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:润滑剂;石油产品;催化剂;蒸气;试验
【英文主题词】:catalysts;cracking;ceactivation;hydrothermaltreatment;steamdeactivationoffreshfluidcrackingcatalysts;steamdeactivation
【摘要】:Ingeneral,steamtreatmentofFCCcatalystcanbeusedeithertocompareaseriesofcrackingcatalystsatasimulatedequilibriumconditionorconditions,ortosimulatetheequilibriumconditionofaspecificcrackingunitandaspecificcatalyst.Thisguidegivesanexampleforthefirstpurposeandanapproachforthelatterpurpose.1.1Thisguidecoversthedeactivationoffreshfluidcatalyticcracking(FCC)catalystbyhydrothermaltreatmentpriortothedeterminationofthecatalyticcrackingactivityinthemicroactivitytest(MAT).1.2ThehydrothermaltreatmentoffreshFCCcatalyst,priortotheMAT,isimportantbecausethecatalyticactivityofthecatalystinitsfreshstateisaninadequatemeasureofitstruecommercialperformance.Duringoperationinacommercialcrackingunit,thecatalystisdeactivatedbythermal,hydrothermalandchemicaldegradation.Therefore,tomaintaincatalyticactivity,freshcatalystisadded(semi)continuouslytothecrackingunit,toreplacecatalystlostthroughthestackorbywithdrawal,orboth.Understeadystateconditions,thecatalystinventoryoftheunitiscalledequilibriumcatalyst.Thiscatalysthasanactivitylevelsubstantiallybelowthatoffreshcatalyst.Therefore,artificiallydeactivatingafreshcatalystpriortodeterminationofitscrackingactivityshouldprovidemoremeaningfulcatalystperformancedata.1.3DuetothelargevariationsinpropertiesamongfreshFCCcatalysttypesaswellasbetweencommercialcrackingunitdesignsoroperatingconditions,orboth,nosinglesetofsteamdeactivationconditionsisadequatetoartificiallysimulatetheequilibriumcatalystforallpurposes.1.3.1Inaddition,therearemanyotherfactorsthatwillinfluencethepropertiesandperformanceoftheequilibriumcatalyst.Theseinclude,butarenotlimitedto:depositionofheavymetalssuchasNi,V,Cu;depositionoflightmetalssuchasNa;contaminationfromattritedrefractoryliningsofvesselwalls.Furthermore,commerciallyderivedequilibriumcatalystrepresentsadistributionofcatalystsofdifferentages(fromfreshto>300days).Despitetheseapparentproblems,itispossibletoobtainreasonablycloseagreementbetweentheperformancesofsteamdeactivatedandequilibriumcatalysts.Itisalsorecognizedthatitispossibletosteamdeactivateacatalystsothatitspropertiesandperformancepoorlyrepresenttheequilibrium.Itisthereforerecommendedthatwhenassessingtheperformanceofdifferentcatalysttypes,acommonsteamingconditionbeused.Catalystdeactivationbymetalsdepositionisnotaddressedinthisguide.1.4Thisguideofferstwoapproachestosteamdeactivatefreshcatalysts.Thefirstpartprovidesspecificsetsofconditions(time,temperatureandsteampressure)thatcanbeusedasgeneralpre-treatmentspriortocomparisonoffreshFCCcatalystMATactivities(TestMethodD3907)oractivitiesplusselectivities(TestMethodD5154).1.4.1ThesecondpartprovidesguidanceonhowtopretreatcatalyststosimulatetheirdeactivationinaspecificFCCUandsuggestscatalystpropertieswhichcanbeusedtojudgeadequacyofthesimulation.ThistechniqueisespeciallyusefulwhenexamininghowdifferenttypesofcatalystmayperforminaspecificFCCU,providednootherchanges(catalystadditionrate,regeneratortemperature,contaminantmetalslevels,etc.)occur.Thisapproachcoverscatalystphysicalpropertiesthatcanbeusedasmonitorstoindicatetheclosenesstoequilibriumcatalystproperties.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesan......
【中国标准分类号】:G74
【国际标准分类号】:71_040_30
【页数】:3P.;A4
【正文语种】:
【英文标准名称】:Textilemachinery;knittingmachines;nameplateinformation;identicalwithISO8121:1986
【原文标准名称】:纺织机械.针织机.商标内容
【标准号】:DINISO8121-1990
【标准状态】:作废
【国别】:德国
【发布日期】:1990-08
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:Textilnorm
【标准类型】:()
【标准水平】:()
【中文主题词】:规范;信息;标志;名牌;针织机械;布置;纺织机械;作标记;纺织机械及附件
【英文主题词】:Dimensions;Fineness;Information;Knittingmachinery;Knittingmachines;Layout;Marking;Nameplates;Signs;Specifications;Textilemachineryandaccessories;Textilemachines;Textiles
【摘要】:Thisstandardspecifiestheminimuminformationthatshallbeprovidedbythenameplatesonknittingmachinesandalsohowthatinformationshallbepresented.
【中国标准分类号】:W96
【国际标准分类号】:59_120_40
【页数】:3P;A4
【正文语种】:德语
