DIN EN 12371-2002 天然石料试验方法.抗冻性
时间:2024-05-10 12:44:05 来源: 标准资料网 作者：标准资料网 阅读：8141
【英文标准名称】:Naturalstonetestmethods-Determinationoffrostresistance;GermanversionEN12371:2001
【原文标准名称】:天然石料试验方法.抗冻性
【标准号】:DINEN12371-2002
【标准状态】:作废
【国别】:德国
【发布日期】:2002-01
【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】:冻结;天然石料;热应力;耐气候老化;耐霜冻性;冻结-融化试验;测定;符号;融解;耐力;温度变化;气候试验;石;评定;试验;材料试验;建筑
【英文主题词】:Assessment;Changesoftemperature;Climatictests;Construction;Determination;Freeze-thawtests;Freezing;Frostresistance;Materialstesting;Naturalstones;Resistance;Stone;Symbols;Testing;Thawing;Thermalstress;Weatheringresistance
【摘要】:
【中国标准分类号】:Q21
【国际标准分类号】:73_020;91_100_15
【页数】:15P.;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforDeterminationofAerosolMonomericandOligomericHexamethyleneDiisocyanate(HDl)inAirwith(Methoxy-2-phenyl-1)Piperazine(MOPIP)intheWorkplace
【原文标准名称】:利用(甲氧基-2-苯基-1)哌嗪(MOPIP)测定工作场所空气中气溶胶单体和低聚二异腈酸己二酯(HDI)的标准试验方法
【标准号】:ASTMD6561-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D22.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:气溶胶;空气;测定;二异腈酸己二酯(HDI);哌嗪;试验方法;试验;工作地点
【英文主题词】:airmonitoring;dualfiltersamplingsystem;hexamethylenediisocyanate;high-performanceliquidchromatography;(methoxy-2-phenyl-1)piperazine;samplingandanalysis;workplaceatmospheres
【摘要】:HDIismostlyusedinthepreparationofpaints.Forthelasttenyears,theuseofisocyanatesandtheirindustrialneedshavebeeninconstantgrowth.Diisocyanatesandpolyisocyanatesareirritantstoskin,eyes,andmucousmembranes.Theyarerecognizedtocauserespiratoryallergicsensitization,asthmaticbronchitis,andacuterespiratoryintoxication(3-6).TheAmericanConferenceofGovernmentalIndustrialHygienists(ACGIH)hasadoptedathresholdlimitvalue-timeweightedaverage(TLV-TWA)of0.005ppm(V)or0.034mg/m3formonomericHDI(7).TheOccupationalSafetyx0026;HealthAdministrationoftheU.S.DepartmentofLabor(OSHA)hasnotlistedapermissibleexposurelimit(PEL)forHDI(8).DuetoitslowLODandlowrequiredvolume(15L),thistestmethodiswellsuitedformonitoringofrespiratoryandotherproblemsrelatedtodiisocyanatesandpolyisocyanates.Itsshortsamplingtimesarecompatiblewiththedurationofmanyindustrialprocesses,anditslowdetectionlimitwiththeconcentrationsoftenfoundintheworkingarea.1.1Thistestmethodcoversthedeterminationofaerosolhexamethylenediisocyanate(HDI)inairsamplescollectedfromworkplaceandambientatmospheres.Themethoddescribedinthistestmethodcollectsseparatefractions.Onefractionwillbedominatedbyvapor,andtheotherfractionwillbedominatedbyaerosol.Itisnotknownatthepresenttimewhetherthisrepresentsaperfectseparationofvaporandaerosol,andinanycase,therearenotseparateexposurestandardsforvaporandaerosol.Therefore,incomparingtheresultsforisocyanateagainstastandard,resultsfromthetwofractionsshouldbecombinedtogiveasingletotalvalue.Thereasonforsplittingthesampleintotwofractionsistoincreaseanalyticsensitivityforthevaporfractionandalsotogivethehygienistorventilationengineersomeinformationconcerningthelikelystateoftheisocyanatespecies.Theanalysesofthetwofractionsaredifferent,andareprovidedinseparate,linked,standardstoavoidconfusion.Thistestmethodisprincipallyusedtodetermineshorttermexposure(15min)ofHDIinworkplaceenvironmentsforpersonalmonitoringorinambientair.Theanalysisofthevaporfractionisperformedseparately,asdescribedinTestMethodD6562.1.2Differentialairsamplingisperformedwithasegregatingdevice.Theaerosolfractioniscollectedonapolytetrafluoroethylene(PTFE)filter.1.3Immediatelyaftersampling,thePTFEfilteristransferredintoajarcontaininga(methoxy-2phenyl-1)piperazine(MOPIP)solutionintoluene.1.4Theanalysisoftheaerosolfractionisperformedbyusingahighperformanceliquidchromatograph(HPLC)equippedwithanultraviolet(UV)detector.Therangeofapplicationofthetestmethodhasbeenvalidatedfrom0.052to1.04gofmonomericHDI/mL,whichcorresponds,basedona15Lairsample,toconcentrationsfrom0.004to0.070mg/m3ofHDI.Thoseconcentrationscorrespondtoarangeofaerosolphaseconcentrationsfrom0.5ppb(V)to10ppb(V)andcovertheestablishedthresholdlimitvalve(TLV)valueof5ppb(V).1.5ThequantificationlimitforthemonomericHDIis0.041gpermL,whichcorrespondsto0.003mg/m3fora15Lsampledairvolume.ThisvalueisequivalenttotentimesthestandarddeviationobtainedfromtenmeasurementscarriedoutonastandardsolutionincontactwiththePTFEfilterwhoseconcentrationof0.1g/mLisclosetotheexpecteddetectionlimit.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesaf......
【中国标准分类号】:Z15
【国际标准分类号】:13_040_30
【页数】:5P.;A4
【正文语种】:
【英文标准名称】:StandardTerminologyofFireStandards
【原文标准名称】:火灾标准的标准术语
【标准号】:ASTME176-2007
【标准状态】:作废
【国别】:美国
【发布日期】:2007
【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】:建筑;定义;火灾;防火安全;建筑物防火;术语
【英文主题词】:Construction;Definition;Definitions;Fire;Firesafety;Firesafetyinbuildings;Terminology
【摘要】:
【中国标准分类号】:C80
【国际标准分类号】:01_040_13;13_220_20
【页数】:20P;A4
【正文语种】:英语