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ASTM D6387-1999(2005) 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

作者:标准资料网 时间:2024-05-20 03:22:34  浏览:9691   来源:标准资料网
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【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】:


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【英文标准名称】:StandardTestMethodforFlashPointbySmallScaleClosedCupTester(RampMethod)
【原文标准名称】:小型闭杯试验器对闪点的测定用标准试验方法(斜坡法)
【标准号】:ASTMD7236-2007
【标准状态】:现行
【国别】:
【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(US-ASTM)
【起草单位】:D02.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:闭路的;坩锅(实验室);闪点;斜坡道;标度;小;试验设备;测试
【英文主题词】:automatic;closedcup;flammability;flashpoint;ramp;smallscale;Closed-cupflashpointmethods;Flashpoint;Rampmethod;Small-scaletesting
【摘要】:Theflashpointtemperatureisonemeasureofthetendencyofthetestspecimentoformaflammablemixturewithairundercontrolledlaboratoryconditions.Itisonlyoneofanumberofpropertiesthatmustbeconsideredinassessingtheoverallflammabilityhazardofamaterial.Flashpointisusedinshippingandsafetyregulationstodefineflammableandcombustiblematerialsandclassifythem.Consulttheparticularregulationinvolvedforprecisedefinitionsoftheseclassifications.Thistestmethodcanbeusedtomeasureanddescribethepropertiesofmaterialsinresponsetoheatandatestflameundercontrolledlaboratoryconditionsandshallnotbeusedtodescribeorappraisethefirehazardorfireriskofmaterialsunderactualfireconditions.However,resultsofthistestmethodmaybeusedaselementsofafireriskassessment,thattakesintoaccountallofthefactorsthatarepertinenttoanassessmentofthefirehazardofaparticularenduse.1.1Thistestmethodcoversthedeterminationoftheflashpointofaviationturbinefuel,dieselfuel,kerosineandrelatedproductsinthetemperaturerangeof40to135x00B0;Cbyasmallscaleclosedcupapparatus.1.2Thistestmethodisonlyapplicabletohomogeneousmaterialsthatareliquidatornearambienttemperatureandattemperaturesrequiredtoperformthetest.1.3Thistestmethodisnotapplicabletoliquidscontaminatedbytracesofhighlyvolatilematerials.1.4Thistestmethodisadynamicmethodanddependsonadefiniterateoftemperatureincrease.Itisoneofmanyflashpointmethodsavailable,andeveryflashpointtestmethod,includingthisone,isanempiricalone.1.5Iftheuser''sspecificationrequiresadefinedflashpointmethod,neitherthistestnoranyothermethodshouldbesubstitutedfortheprescribedmethodwithoutobtainingcomparativedataandanagreementfromthespecifier.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7andtheMaterialSafetyDataSheetfortheproductbeingtested.
【中国标准分类号】:E30
【国际标准分类号】:75_160_20
【页数】:6P.;A4
【正文语种】:


【英文标准名称】:Resistors,fixed,lacquered,crackedcarbonfilm,highstability,withlowdriftandlowfailure-rateandwithaxialleads
【原文标准名称】:用于较高要求的较小偏差和小失误率带轴向引线接头的涂漆碳膜固定电阻.应用等级FKF
【标准号】:DIN44055-1983
【标准状态】:作废
【国别】:德国
【发布日期】:1983-09
【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】:电阻器;固定电阻器;非线绕电阻器;电气工程
【英文主题词】:fixedresistors;electricalengineering;non-wirewoundresistors;resistors
【摘要】:
【中国标准分类号】:L13
【国际标准分类号】:2010
【页数】:2P;A4
【正文语种】:德语



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