NF V03-023-2005 食品.基因改良有机物及其衍生产品检测的分析方法.核酸萃取
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【英文标准名称】:Foodstuffs-Methodsofanalysisforthedetectionofgeneticallymodifiedorganismsandderivedproducts-Nucleicacidextraction.
【原文标准名称】:食品.基因改良有机物及其衍生产品检测的分析方法.核酸萃取
【标准号】:NFV03-023-2005
【标准状态】:现行
【国别】:法国
【发布日期】:2005-08-01
【实施或试行日期】:2005-08-20
【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】:
【英文主题词】:
【摘要】:
【中国标准分类号】:X04
【国际标准分类号】:67_050
【页数】:53P;A4
【正文语种】:英语
【英文标准名称】:TestMethodforSpontaneousHeatingValuesofLiquidsandSolidsDifferentialMackeyTest
【原文标准名称】:液体和固体差动麦克试验的自发热值用试验方法
【标准号】:ANSI/ASTMD3523-1992
【标准状态】:作废
【国别】:美国
【发布日期】:1992
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:热值;液体;石油产品;固体;测试
【英文主题词】:Calorificvalue;Liquids;Petroleumproducts;Solids;Testing
【摘要】:Thistestmethodcoversthenon-adiabaticdeterminationofthespontaneousheatingvalues(SHV)ofliquidsandsolids.Itisapplicabletosubstancesthatarenotcompletelyvolatileatthetesttemperature.Spontaneousheatingvaluesobtainedbythistestmethodarequalitativeindicationsofthedegreeofself-heatingthatmaybeexpectedtooccuruponexposureofthesampletoairatthetesttemperature.Valuesobtainedbythismethodareapplicabletoliquidsandsolidssupportedoncellulosicsurfaces.Theyarenotapplicabletoliquidsonmetalsurfaces,oncontaminatedsurfaces,oratpressuresaboveatmospheric.Spontaneousheatingvaluesdeterminedbythepresenttestmethodareregardedonlyasqualitativemeasurementsofself-heatingwhichoccursundertheconditionsofthetest.Thetestmethoddoesnotpurporttoproduceaquantitativemeasureoftheenthalpyofreactionofthesamplewithairatagiventesttemperature.Suchdatacanbeobtainedbytheuseofanadiabaticcalorimeter.Theexistence,underthetestconditions,ofapositivetemperaturedifferencebetweenthesampleandthereferenceisevidenceofathermochemicalreactioninthesample.Themagnitudeofthemeasuredtemperaturedifferenceisasemiquantitativeindicationoftheenthalpyandrateofthatreaction.Sincefactorssuchasheatlossfromthesampletothebathandquenchingofthereactionduetotoorapidconsumptionofoxygenaffecttheamountanddurationofthemeasuredheateffect,caremustbetakennottoattributetoomuchquantitativesignificancetothetestresults.Itissufficient,forthepurposeofthistest,todeterminewhetherornotthesampleiscapableofundergoingaself-heatingreactionofsufficientmagnitudeandrapiditytoproduceadetectablethermaleffect.Thespontaneousheatingvalue(SHV)canbelowerthanthetesttemperature.Anegativeresultdoesnotprecludespontaneousheatinginitiatingatatemperaturehigherthanthetesttemperature.Thisstandardshouldbeusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditionsandshouldnotbeusedtodescribeorappraisethefire-hazardorfire-riskofmaterials,products,orassembliesunderactualfireconditions.However,resultsofthistestmaybeusedaselementsofafire-hazardassessmentorafire-riskassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttoanassessmentofthefirehazardorfireriskofaparticularenduse.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Incaseswherematerials,productsorequipmentareavailableininch-poundunitsonly,SIunitsareomitted.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_160_01
【页数】:
【正文语种】:英语
【英文标准名称】:MaximumPermissibleAmbientNoiseLevelsforAudiometricTestRooms
【原文标准名称】:听力测定实验室的最大可允许环境噪声等级
【标准号】:ANSI/ASAS3.1-1999
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:声学测量;声学;听力测定;封闭式试验室;定义;听力试验;收听试验;听阈测量;噪声等级;噪声测量;声级
【英文主题词】:Acousticmeasurement;Acoustics;Audiometry;Closedtestrooms;Definition;Definitions;Hearingabilitytests;Listeningtests;Measurementofthresholdofaudibility;Noiselevels;Noisemeasurements;Soundlevel;Soundlevels
【摘要】:Specifiesmaximumpermissibleambientnoiselevels(MPANLs)allowedinanaudiometrictestroomthatproducenegligiblemasking(
