BS EN 15284-2007 与食品料接触的材料和物品.陶瓷、玻璃、玻璃陶瓷或塑料炊具的微波加热耐力的试验方法
时间:2024-05-11 17:38:05 来源: 标准资料网 作者：标准资料网 阅读：8182
【英文标准名称】:Materialsandarticlesincontactwithfoodstuffs-Testmethodfortheresistancetomicrowaveheatingofceramic,glass,glass-ceramicorplasticcookware
【原文标准名称】:与食品料接触的材料和物品.陶瓷、玻璃、玻璃陶瓷或塑料炊具的微波加热耐力的试验方法
【标准号】:BSEN15284-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-05-31
【实施或试行日期】:2007-05-31
【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】:物品;校正;陶瓷;烹调器;家用的;食品;食品料;玻璃;玻璃陶瓷;加热;仪器;材料;接触食品的材料;材料测试;微波器件;微波灶;微波炉辐射;微波;塑料容器;塑料;耐力;表面温度;温度性能;温度试验;测试
【英文主题词】:Articles;Calibration;Ceramics;Cookingvessels;Domestic;Foodproducts;Foodstuff;Glass;Glassceramics;Heating;Instruments;Materials;Materialsincontactwithfood;Materialstesting;Microwavedevices;Microwaveovens;Microwaveradiation;Microwaves;Plasticcontainers;Plastics;Resistance;Surfacetemperatures;Temperaturebehaviour;Temperaturetest;Testing
【摘要】:ThisEuropeanStandardspecifiesamethodforthedeterminationoftheresistancetomicrowaveheatingofcookwaremadeofceramic,glass,glass-ceramicorplastics.Itisapplicabletoarticlesthatareintendedformultiplere-useinamicrowaveoven.Itisnotapplicabletoarticles,particularlythosemadefromplastics,whichareintendedtobediscardedafteroneuse.
【中国标准分类号】:X08
【国际标准分类号】:67_250
【页数】:14P.;A4
【正文语种】:英语
【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】:Acoustics-Measurementofsoundinsulationinbuildingsandofbuildingelementsusingsoundintensity-Part1:Laboratorymeasurements(ISO15186-1:2000);GermanversionENISO15186-1:2003
【原文标准名称】:声学.用声强作建筑物和建筑构件的隔声测量.第1部分:实验室测量
【标准号】:DINENISO15186-1-2003
【标准状态】:现行
【国别】:德国
【发布日期】:2003-12
【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】:声音衰减指数;实验室试验;要求;测量设备;建筑声学;隔音;声学;建筑物;试验;条件;声强;材料试验;声学试验;建筑;试验台;元部件;定义;结构构件;测量
【英文主题词】:
【摘要】:Theprojectspecifiesasoundintensitymethodtodeterminethesoundreductionindexandtheelement-normalizedleveldifferenceofbuildingelements.ThemethodcanbeusedasanalternativetoISO140-3andISO140-10respectively.OneimportantuseiswhenthetraditionalISO140-3methodfailsbecauseofhighflankingtransmission.ThereproducibilityofthisintensitymethodisestimatedtobeequaltoorbetterthanthatofISO140-3.
【中国标准分类号】:Z32
【国际标准分类号】:91_120_20
【页数】:18P;A4
【正文语种】:德语