【英文标准名称】:StandardTestMethodsforCompositionofTurpentineandRelatedTerpeneProductsbyCapillaryGasChromatography
【原文标准名称】:通过毛细孔气相色谱对松节油和相关的萜烯产品的组成的标准试验方法
【标准号】:ASTMD6387-1999(2005)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D01.34
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:松脂;二聚戊烯;气相色谱法;毛细柱;松油
【英文主题词】:capillarycolumn;dipentene;gaschromatography;pineoil;turpentine
【摘要】:Earliermethodsforcharacterizingturpentineandrelatedterpeneproductswerebasedonphysicalproperties,suchasthoseinSpecificationD13andTestMethodsD801andD802,andpackedcolumngaschromatographyforthemajorconstituents(forexample,x03B1;-pinene,x03B2;-pinene)asinTestMethodD3009.Asterpeneproductsbecamewidelyusedaschemicalrawmaterial,theseparationandquantitationofcompoundspresentatlowerconcentrationsintheproductbecamemoreimportant.Thecapillarygaschromatographictechniquedescribedinthesetestmethodsisarapidandconvenientmeanstoperformtheseanalyses.1.1Thesetestmethodsdescribethedeterminationoftheamountsofalpha-pinene,945;-pinene,dipentene,terpenealcohols,andotherterpenecompoundsinturpentineandrelatedterpeneproductsusingcapillarygaschromatography.Thetwomethodsfordeterminingtheamountoftheindividualterpenecompoundsarethe"internalstandard"method,whichyieldsabsolutevalues,andthe"areapercent"method,whichyieldsrelativevalues.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthestandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;Overallthistestmethodgivesexcellentrepeatabilitybutonlymoderatereproducibility.Thisgreaterthannormaldifferentialisaconsequenceofthevarietyofgaschromatography(GC)columnsandothervariablesusedbyparticipants.Thesevariables,coupledwiththecomplexcompositionofthetestproducts,enabledsomeworkerstoseparatepeaksthatothersreportedasonepeak;thus,thistestmethodgivesexcellentprecisionwithinagivenlaboratoryonagivenGC.Whenlaboratorytolaboratorycomparisonhavetobemade,however,itisessentialthattheGCoperatingconditionsbedefinedclosely.SubcommitteeD01.34willbeworkingonthisproblempriortothenextversionofthistestmethod.
【中国标准分类号】:B72
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:EquipmentEngineering(EE)-Evironmentalconditionsandenvironmentaltestsfortelecommunicationsequipment-Part2-4:Specificationofenvironmentaltests;Stationaryuseatnon-weatherprotectedlocations(EndorsementoftheEnglishversionEN300019-
【原文标准名称】:设备工程(EE).电信设备的环境条件和环境试验.第2-4部分:环境试验规范.非抗大气影响场所用固定设备
【标准号】:DINEN300019-2-4-2004
【标准状态】:现行
【国别】:德国
【发布日期】:2004-03
【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】:远程通信;电信;耐力;极限(数学);定义;气候试验;固定的;通信设备;环境;仪器;装置配置;仪器工艺;应用;环境条件;试验;电气工程;环境试验;分类;环境影响;气候条件
【英文主题词】:
【摘要】:ThisEuropeanstandardspecifiesrequirementsinthetelecommunicationssector.
【中国标准分类号】:M04
【国际标准分类号】:33_050_01
【页数】:2P;A4
【正文语种】:德语