ASTM D4296-1983(2004) 硬沥青的采样
时间:2024-05-10 14:12:41 来源: 标准资料网 作者：标准资料网 阅读：8838
【英文标准名称】:StandardPracticeforSamplingPitch
【原文标准名称】:硬沥青的采样
【标准号】:ASTMD4296-1983(2004)
【标准状态】:现行
【国别】:
【发布日期】:1983
【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】:D02.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:施工材料;屋顶层;屋顶;沥青;水密材料;屋面油毡;抽样方法;沥青制品;工艺;建筑;硬沥青(石油产品)
【英文主题词】:pitch;sample
【摘要】:Samplingisasimportantastesting.Ifthesamplingisimproperlydone,thesampleofthematerialwillbeinerror,andtheanalysiswillnotrepresentthetruepropertiesofthematerial,anditmaybeimpossibleorimpracticabletotakeanothersample;whereas,ifthesampleisproperlytakenandtheanalysisisinerror,anotheranalysiscanreadilybemadeoftheoriginalsample.Samplesmaybetakenforeitherofthefollowingtwopurposes:4.2.1Torepresentasnearlyaspossibleanaverageofthebulkofthematerialssampled,or4.2.2Toascertainthemaximumvariationincharacteristicswhichthematerialpossesses.Agoodsamplingplanhasthefollowingcharacteristics:4.3.1Itprotectstheconsumeragainsttheacceptanceofabadbatchofmaterial.4.3.2Itprotectstheproduceragainsttherejectionofagoodbatchofmaterial.4.3.3Itgiveslong-rangeprotectiontotheconsumer.4.3.4Itencouragestheproducertokeephisprocessincontrol.4.3.5Itminimizesthecostofsampling,inspectionoftesting,andadministration.4.3.6Itprovidesinformationconcerningthequalityoftheproduct.SamplingIntegrity8212;Whenonetakesasample,oneisattemptingtorepresentabatchorlotofmaterialwiththatsample.Differentformsofpitch,andpitchindifferenttypesofcontainers,needtohavedifferentsamplingplansandappropriatesamplingequipment.Eachsamplingplanshouldbedesignedsothatitaccomplishesitsobjective,whichistoascertainthecharacteristicsorqualityofabatchorlotofmaterial.1.1Thispracticecoversproceduresforsamplingpitchatpointsofmanufacture,storage,anddelivery.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninSection10.
【中国标准分类号】:E43
【国际标准分类号】:91_100_50
【页数】:10P.;A4
【正文语种】:
【英文标准名称】:Fertilizers-ExtractionofsolublephosphorusaccordingtoPetermannat65°C;GermanversionCEN/TS15921:2009
【原文标准名称】:肥料.温度65°C下按照彼德曼法进行可溶性磷的萃取.德文版本CEN/TS15921-2009
【标准号】:DINSPEC1100-2010
【标准状态】:作废
【国别】:德国
【发布日期】:2010-02
【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】:碱性;铵盐;分析;化学分析和测试;柠檬酸;含量;含量测定;萃取;萃取分析法;肥料;方法;亚磷酸;磷;磷含量;土壤改良;土壤改良物质;溶液
【英文主题词】:Alkaline;Ammoniumsalt;Analysis;Chemicalanalysisandtesting;Citricacid;Content;Determinationofcontent;Extraction;Extractionmethodsofanalysis;Fertilizers;Methods;Phosphorousacid;Phosphorus;Phosphoruscontent;Soilimprovement;Soilimprovingmaterials;Solutions
【摘要】:Thedocumentspecifiesthemethodfortheextractionofsolublephosphorusinalkalineammoniumcitrate.Themethodisapplicableexclusivelytoprecipitateddehydrateddicalciumphosphate(CaHPO4.2H2O).
【中国标准分类号】:G20
【国际标准分类号】:65_080
【页数】:9P.;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforTotalOxygenDemandinWater
【原文标准名称】:水中总氧要求的标准试验方法
【标准号】:ASTMD6238-1998(2003)
【标准状态】:现行
【国别】:
【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】:D19.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验室分析;生产线检测;总氧要求;需氧量;鳕鱼
【英文主题词】:BOD;COD;laboratoryanalyzer;onlinemonitor;oxygendemand;totaloxygendemand;TOD
【摘要】:Themeasurementofoxygendemandparametersiscriticaltothecontrolofprocesswastewaters.Biochemicaloxygendemand(BOD)andchemicaloxygendemand(COD)analyzershavelongtimecyclesandinthecaseofCODanalyzersusecorrosivereagentswiththeinherentproblemofdisposal.Totaloxygendemandanalysisisfaster,approximately3min,andusesnoliquidreagentsinitsanalysis.TODcanbecorrelatedtobothCODandBOD,providingeffectiveon-linecontrol.TODoffersseveralfeatureswhichmakeitamoreattractivemeasurementthancarbonmonitoringusingTotalCarbon(TC)orTotalOrganicCarbon(TOC)analyzers.TODisunaffectedbythepresenceofinorganiccarbon.TODanalysiswillalsoindicatenoncarbonaceousmaterialsthatconsumeorcontributeoxygen.Forexample,theoxygendemandofammonia,sulfiteandsulfideswillbereflectedintheTODmeasurement.Also,sincetheactualmeasurementisoxygenconsumption,TODreflectstheoxidationstateofthechemicalcompound(thatis,ureaandformicacidhavethesamenumberofcarbonatoms,yetureahasfivetimestheoxygendemandofformicacid).1.1Thistestmethodcoversthedeterminationoftotaloxygendemandintherangefrom100to100000mg/L,inwaterandwastewaterincludingbrackishwatersandbrines(see6.5).Largerconcentrations,orsampleswithhighsuspendedsolids,orboth,maybedeterminedbysuitabledilutionofthesample.1.1.1Sincetheanalysisisbasedonthechangeinoxygenreadingofthecarriergascomparedtothatwhenasampleisintroduced(see4.1),themeasurementrangeisafunctionoftheamountofoxygeninthecarriergas.Thehigherthedesiredconcentrationrange,themoreoxygenrequiredinthecarriergas.Underrecommendedconditions,thecarriergasconcentrationshouldbebetweentwotofourtimesthemaximumdesiredoxygendemand.1.1.2Thelowermeasurementrangeislimitedbythestabilityofthebaselineoxygendetectoroutput.Thissignalisafunctionofthepermeationsystemtemperature,carriergasflowrate,oxygendetectortemperature,andreferencesensorvoltage.Combined,thesevariableslimittheminimumrecommendedrangeto2to100mg/L.1.1.3Theuppermeasurementrangeislimitedbythemaximumoxygenconcentrationinthecarriergas(100%).Withtherecommendedconditionsofcarriergasconcentrationbeingtwotofourtimesthemaximumoxygendemand,thislimitsthemaximumpossibleoxygendemandtobetween250000to500000mg/L.However,asapracticalapplicationtowateranalysis,thistestmethodwillconsideramaximumrangeof100000mg/L.1.2Thistestmethodisapplicabletoalloxygen-demandingsubstancesundertheconditionsofthetestcontainedinthesamplethatcanbeinjectedintothereactionzone.Theinjectoropeninglimitsthemaximumsizeofparticlesthatcanbeinjected.Ifoxygen-demandingsubstancesthatarewater-insolubleliquidsorsolidsarepresent,apreliminarytreatmentmaybedesired.ThesepretreatmentmethodsaredescribedinAnnexA2.1.3Thistestmethodisparticularlyusefulformeasuringoxygendemandincertainindustrialeffluentsandprocessstreams.Itsapplicationformonitoringsecondarysewageeffluentsisnotestablished.ItsuseforthemonitoringofnaturalwatersisgreatlylimitedbytheinterferencesdefinedinSection6.1.4Inadditiontolaboratoryanalysis,thistestmethodisapplicabletoon-streammonitoring.SampleconditioningtechniquesforsolidspretreatmentapplicationsarenotedinAnnexA2.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicability......
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:7P.;A4
【正文语种】: