ASTM C560-1988(2010)e1 石墨的化学分析标准试验方法
作者:标准资料网 时间:2024-05-21 18:51:51 浏览:8327
来源:标准资料网
【英文标准名称】:StandardTestMethodsforChemicalAnalysisofGraphite
【原文标准名称】:石墨的化学分析标准试验方法
【标准号】:ASTMC560-1988(2010)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1988
【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.F0
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:calibration;calibrationsolutions;chemicalanalysis;colordevelopment;graphite;photometry;Aluminumcontent;Boroncontent;Calciumcontent;Calibration;Calibrationsolutions;Chemicalanalysis;Colordevelopment;Graphite;Ironcontent;Photom
【摘要】:Thesetestmethodsprovideapracticalwaytomeasuretheconcentrationofcertaintraceelementsingraphite.Manyendusesofgraphiterequirethatitbefreeofelementswhichmaybeincompatiblewithcertainnuclearapplications.Otherelementalcontaminationcanaffecttherateofoxidativedegradation.Thesetestmethodsallowmeasurementoftraceamountsofcontaminantswithaminimalamountofcostlyequipment.Thecolorimetricproceduresusedareaccessibletomostlaboratories.1.1Thesetestmethodscoverthechemicalanalysisofgraphite.1.2Theanalyticalproceduresappearinthefollowingorder:
【中国标准分类号】:Q51
【国际标准分类号】:71_060_10
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforDeterminationofVolatileOrganicCompounds(ExcludingFormaldehyde)EmissionsfromWood-BasedPanelsUsingSmallEnvironmentalChambersUnderDefinedTestConditions
【原文标准名称】:在规定的试验条件下用小型环境试验室测定从木质板材中排放的挥发性有机物(甲醛除外)的标准实施规程
【标准号】:ASTMD6330-1998(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:D22.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:chemicalanalysis;emissionfactors;smallenvironmentaltestchamber;standarddynamicchambertestconditions;volatileorganiccompounds;wood-basedpanels;Chemicalanalysis--atmospheric;Emissionmonitoring;Smallchambertesting;Standarddynam
【摘要】:TheeffectsofVOCsourcesontheindoorairqualityinbuildingshavenotbeenwellestablished.Onebasicrequirementthathasemergedfromindoorairqualitystudiesistheneedforwell-characterizedtestdataontheemissionfactorsofVOCsfrombuildingmaterials.Standardtestmethodandprocedurearearequirementforthecomparisonofemissionfactordatafromdifferentproducts.ThispracticedescribesaprocedureforusingasmallenvironmentaltestchambertodeterminetheemissionfactorsofVOCsfromwood-basedpanelsoveraspecifiedperiodoftime.Apre-screeninganalysisprocedureisalsoprovidedtoidentifytheVOCsemittedfromtheproducts,todeterminetheappropriateGC/MSorGC/FIDanalyticalprocedure,andtoestimaterequiredsamplingvolumeforthesubsequentenvironmentalchambertesting.TestresultsobtainedusingthispracticeprovideabasisforcomparingtheVOCemissioncharacteristicsofdifferentwood-basedpanelproducts.TheemissiondatacanbeusedtoinformmanufacturersoftheVOCemissionsfromtheirproducts.ThedatacanalsobeusedtoidentifybuildingmaterialswithreducedVOCemissionsoverthetimeintervalofthetest.Whileemissionfactorsdeterminedbyusingthispracticecanbeusedtocomparedifferentproducts,theconcentrationsmeasuredinthechambershallnotbeconsideredastheresultantconcentrationsinanactualindoorenvironment.1.1Thepracticemeasuresthevolatileorganiccompounds(VOC),excludingformaldehyde,emittedfrommanufacturedwood-basedpanels.Apre-screeninganalysisisusedtoidentifytheVOCsemittedfromthepanel.Emissionfactors(thatis,emissionratesperunitsurfacearea)fortheVOCsofinterestarethendeterminedbymeasuringtheconcentrationsinasmallenvironmentaltestchambercontainingaspecimen.Thetestchamberisventilatedataconstantairchangerateunderthestandardenvironmentalconditions.Forformaldehydedetermination,seeTestMethodD6007.1.2ThispracticedescribesatestmethodthatisspecifictothemeasurementofVOCemissionsfromnewlymanufacturedindividualwood-basedpanels,suchasparticleboard,plywood,andorientedstrandboard(OSB),forthepurposeofcomparingtheemissioncharacteristicsofdifferentproductsunderthestandardtestcondition.Forgeneralguidanceonconductingsmallenvironmentalchambertests,seeGuideD5116.1.3VOCconcentrationsintheenvironmentaltestchamberaredeterminedbyadsorptiononanappropriatesingleadsorbenttubeormulti-adsorbenttube,followedbythermaldesorptionandcombinedgaschromatograph/massspectrometry(GC/MS)orgaschromatograph/flameionizationdetection(GC/FID).TheairsamplingprocedureandtheanalyticalmethodrecommendedinthispracticearegenerallyvalidfortheidentificationandquantificationofVOCswithsaturationvaporpressurebetween500and0.01kPaat25x00B0;C,dependingontheselectionofadsorbent(s).Note18212;VOCsbeingcapturedbyanadsorbenttubedependontheadsorbent(s)andsamplingprocedureselected(seePracticeD6196).Theusershouldhaveathoroughunderstandingofthelimitationsofeachadsorbentused.1.4Theemissionfactorsdeterminedusingtheaboveproceduredescribetheemissioncharacteristicsofthespecimenunderthestandardtestcondition.Thesedatacanbeuseddirectlytocomparetheemissioncharacteristicsofdifferentproductsandtoestimatetheemissionratesuptoonemonthaftertheproduction.Theyshallnotbeusedtopredicttheemissionratesoverlongerperiodsoftime(thatis,morethanonemonth)orunderdifferentenvironmentalconditions.1.5Emissiondatafromchambertestscanbe......
【中国标准分类号】:B70
【国际标准分类号】:79_060_01
【页数】:10P.;A4
【正文语种】:英语
【英文标准名称】:METALLICCOATINGS.MEASUREMENTOFCOATINGTHICKNESS.SCANNINGELECTRONMICROSCOPEMETHOD.
【原文标准名称】:金属镀层.镀层厚度测量,电子显微扫描法
【标准号】:NFA91-108-1991
【标准状态】:作废
【国别】:法国
【发布日期】:1991-07
【实施或试行日期】:1991-06-28
【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】:金属覆层;厚度;电子显微镜;厚度测量
【英文主题词】:metalcoatings;thickness;thicknessmeasurement;electronmicroscopes
【摘要】:
【中国标准分类号】:A29
【国际标准分类号】:
【页数】:6P;A4
【正文语种】:其他
