ISO 2751-1973 工业用尿素缓冲系数的测定电位滴定法
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【英文标准名称】:Ureaforindustrialuse;Determinationofthebuffercoefficient;Potentiometricmethod
【原文标准名称】:工业用尿素缓冲系数的测定电位滴定法
【标准号】:ISO2751-1973
【标准状态】:作废
【国别】:国际
【发布日期】:1973-11
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC47
【标准类型】:()
【标准水平】:()
【中文主题词】:缓冲剂(化学);化学分析;化学分析和试验;脲;缓冲剂;电位测量法
【英文主题词】:chemicalanalysis;ureas;buffers(chemistry);buffers(chemical);potentiometricmethods;chemicalanalysisandtesting;urea
【摘要】:Applicabletosolutionsofconventionalconcentration.Theprincipleconsistsinmeasurement,at(200.5)0C,ofthequantityof0.05NacidsolutionrequiredtoeffectapHchangefrom8to6forasolutioncontaining100gofureain1000mlofsolution.ForthemeasurementapHmeterisusedfittedwithaglasselectrodeandacalomelelectrode.ThemethodhasalsobeenapprovedbytheIUPAC.
【中国标准分类号】:G15
【国际标准分类号】:
【页数】:2P;A4
【正文语种】:英语
【英文标准名称】:Testmethodsfordeterminingthecontributiontothefireresistanceofstructuralmembers-Appliedprotectiontosteelmembers
【原文标准名称】:测定结构薄板耐火性的试验方法.用钢薄板的于防火
【标准号】:BSDDENV13381-4-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-08-02
【实施或试行日期】:2002-08-02
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:建筑;组件;规范(验收);防火;建筑物组件的试验;承重板;燃烧试验;防火耐火结构;火焰表面传播;结构构件;耐火时间;性能试验;耐火性;耐火材料;消防设备;定义;结构钢件
【英文主题词】:
【摘要】:ThispartofthisEuropeanPrestandardspecifiesatestmethodfordeterminingthecontributionmadebyappliedfireprotectionsystemstothefireresistanceofstructuralsteelmembers,whichcanbeusedasbeams,columnsortensionmembers.Theevaluationisdesignedtocoverarangeofthicknessesoftheappliedfireprotectionmaterial,arangeofsteelsections,characterizedbytheirsectionfactors,arangeofdesigntemperaturesandarangeofvalidfireprotectionclassificationperiods.ThisEuropeanPrestandardappliestofireprotectionmaterialswherethegapbetweenthematerialandtheflangefacesofthesteelmemberislessthan5mminsize.Otherwise,thetestmethodsinENV13381-1orENV13381-2,asappropriate,apply.ThisEuropeanPrestandardcontainsthefiretestwhichspecifiesthetestswhichshouldbecarriedouttodeterminetheabilityofthefireprotectionsystemtoremaincoherentandfixedtothesteelwork,andtoprovidedataonthethermalcharacteristicsofthefireprotectionsystem,whenexposedtothestandardtemperature/timecurvespecifiedinEN1363-1.Inspecialcircumstances,wherespecifiedinnationalbuildingregulations,therecanbeaneedtosubjectreactiveprotectionmaterialtoasmoulderingcurve.ThetestforthisandthespecialcircumstancesforitsusearedescribedinannexA.ThefiretestmethodologymakesprovisionforthecollectionandpresentationofdatawhichcanbeusedasdirectinputtothecalculationoffireresistanceofsteelstructuralmembersinaccordancewiththeproceduresgiveninENV1993-1-2.ThisEuropeanPrestandardalsocontainstheassessmentwhichprescribeshowtheanalysisofthetestdatashouldbemadeandgivesguidanceontheproceduresbywhichinterpolationshouldbeundertaken.Theassessmentprocedureisusedtoestablish:a)onthebasisoftemperaturedataderivedfromtestingloadedandunloadedsections,acorrectionfactorandanypracticalconstraintsontheuseofthefireprotectionsystemunderfiretestconditions,(thephysicalperformance);b)onthebasisofthetemperaturedataderivedfromtestingshortsteelcolumnsections,thethermalpropertiesofthefireprotectionsystem,(thethermalperformance).Thelimitsofapplicabilityoftheresultsoftheassessmentarisingfromthefiretestaredefined,togetherwithpermitteddirectapplicationoftheresultstodifferentsteelsectionsandgradesandtodifferentfireprotectionsystemsandfixings.TheresultsofthetestandassessmentobtainedaccordingtothispartofENV13381aredirectlyapplicabletosteelsectionsof"I"and"H"crosssectionalshape.GuidanceisgiveninannexBontheapplicationofthedataobtainedfrom"I"and"H"steelsectionstoothersectionshapes.
【中国标准分类号】:C80
【国际标准分类号】:13_220_50
【页数】:80P;A4
【正文语种】:英语
【英文标准名称】:Contractprocedureforbuildingworks;partC:generaltechnicalspecificationsforbuildingworks;metalconstructionworks,locksmithworks
【原文标准名称】:VOB建筑工程主管承包条例.第C部分:建筑工程通用技术合同规程(ATV).金属结构工程.钳工工作
【标准号】:DIN18360-1965
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
