标准资料网-标准资料免费资源平台

【英文标准名称】:StandardTestMethodforDeterminationofFormaldehydeandOtherCarbonylCompoundsinAir(ActiveSamplerMethodology)
【原文标准名称】:测定空气中甲醛和其他羰基化合物的标准试验方法(活性取样法)
【标准号】:ASTMD5197-2009e1
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:活性取样;空气;羰基化合物;二硝基苯肼套筒;甲醛;高效液相色谱分析;高效液相色谱法;活性取样法;空气分析;醛;大气分析
【英文主题词】:activesampler;air;carbonylcompounds;DNPHcartridge;formaldehyde;HPLCanalysis;HPLC(highperformanceliquidchromatography);Activesamplermethodology;Airanalysis;Aldehydes;Atmosphericanalysis
【摘要】:Thistestmethodprovidesananalyticalprocedureformeasuringformaldehydeandothercarbonylcompoundsinindoororoutdoorair.1.1Thistestmethodcoversaprocedureforthedeterminationofformaldehyde(HCHO)andothercarbonylcompounds(aldehydesandketones)inair.Othercarbonylcompoundsthathavebeenvalidatedfordeterminationbythismethodincludeacetaldehyde,acetone,propanal(propionaldehyde),methacrolein,2-butanone(methylethylketone),butyraldehyde,benzaldehyde,isovaleraldehyde,valeraldehyde,o-tolualdehyde,m-tolualdehyde,p-tolualdehyde,hexanal,and2,5-dimethylbenzaldehyde.Acroleinandcrotonaldehydecannotbedeterminedquantitativelyusingtheanalyticalproceduredescribedin10.2duetotheformationofmultiplederivativepeaksandtheinstabilityofthepeakratios.However,theproceduredescribedintheAnnexAhasbeenusedbytheU.S.EnvironmentalProtectionAgencytoestimateacroleinandcrotonaldehydeconcentrationsinstandardatmospheresfollowingspecialprecautions.1.2Thistestmethodinvolvesdrawingairthroughacartridgecontainingsilicagelcoatedwith2,4-dinitrophenylhydrazine(DNPH)reagent.CarbonylcompoundsreadilyformstablederivativeswiththeDNPHreagent.TheDNPHderivativesareanalyzedforparentaldehydesandketonesutilizinghighperformanceliquidchromatography(HPLC).ThesamplingprocedureisamodificationofU.S.EPAMethodTO-11A(see2.2).1.3ThistestmethodisbasedonthespecificreactionofcarbonylcompoundswithDNPHinthepresenceofanacidtoformstablederivativesaccordingtothereactionshowninFig.1,(where:bothRandR1arealkyloraromaticgroups(ketones),orboth,oreitherRorR1isahydrogenatom(aldehydes)).Thedeterminationofformaldehydeandothercarbonylcompounds,asDNPHderivatives,issimilartothatofU.S.EPAMethodTO-11AinthatitutilizesHPLCwithUVdetectionastheanalyticalfinish.ThedetectionlimitshavebeenextendedtoothercarbonylcompoundsthatcanbedeterminedasoutlinedinSection10.2.4.Thistestmethodissuitablefordeterminationofformaldehydeandothercarbonylcompoundsintheconcentrationrangefromapproximately10ppbto1ppm(v/v).1.4Thesamplingmethodgivesatime-weightedaverage(TWA)sample.Itcanbeusedforlong-term(1to24h)orshort-term(5to60min)samplingofairforformaldehyde.1.5ThistestmethodinstructstheuseronhowtopreparesamplingcartridgesfromcommerciallyavailablechromatographicgradesilicagelcartridgesbytheapplicationofacidifiedDNPHtoeachcartridge.1.6Thesamplingflowrate,asdescribedinthistestmethod,hasbeenvalidatedforsamplingratesupto1.5L/min.Thisflowratelimitationisprincipallyduetothehighpressuredrop(>8kPaat1.0L/min)acrosstheuserpreparedsilicagelcartridgeswhichhaveaparticlesizeof55to105x03BC;m.Thesecartridgesarenotgenerallycompatiblewithbattery-poweredpumpsusedinpersonalsamplingequipment(forexample,thoseusedbyindustrialhygienists.1.7Alternatively,pre-coatedDNPHsilicagelcartridgesarealsocommerciallyavailableandmaybesubstitutedprovidedtheycanbedemonstratedtoperformequivalently.Someoftheseusesilicagelofalargerparticlesizethatresultsinalowerpressuredropacrossthecartridge.Theselowpressuredropcartridgesmaybemoresuitableforsamplingairusingbattery-poweredpersonalsamplingpumps.1.8ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.9Thisstandarddoesnotpurporttoa......
【中国标准分类号】:C51
【国际标准分类号】:71_080_80
【页数】:16P.;A4
【正文语种】:


【英文标准名称】:StandardSpecificationforRigidPolyurethaneFoamforUseasaStandardMaterialforTestingOrthopedicDevicesandInstruments
【原文标准名称】:作为测试矫形装置和仪器的标准物质的硬质聚氨酯泡沫的标准规范
【标准号】:ASTMF1839-2008e1
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:F04.21
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:bone;cellularplastic;medicaldevices;polyurethane;rigidfoam;Orthopaedicmedicaldevices--specifications;Polyurethane--surgicalapplications;Rigidfoam
【摘要】:Thisspecificationdescribesthecompositionalrequirements,physicalrequirements,mechanicalrequirements,andtestmethodsforrigidunicellularpolyurethanefoamforuseintestingorthopaedicdevicesorinstruments.Thisfoamdescribedinthisspecificationisnotintendedtoreplicatethemechanicalpropertiesofhumanoranimalbone.Therequirementsofthisspecificationareintendedtoprovideaconsistentanduniformmaterialwithpropertiesontheorderofhumancancellousbonetouseasatestmediumwhentestingvariousorthopaedicdevices,suchasbonescrews.1.1Thisspecificationcoversrigidunicellularpolyurethanefoamforuseasastandardmaterialforperformingmechanicaltestsutilizingorthopaedicdevicesorinstruments.Thespecificationisapplicabletosheetsorblocksoffoam,orfoamthatismadebytheuserusingatwo-partliquidmixture.1.2Thisspecificationcoverspolyurethanefoammaterialthatisusedinthelaboratoryformechanicaltesting,asdescribedin1.1.Thesematerialsarenotintendedforimplantationintothehumanbody.1.3Thefoamdescribedhereinpossessesmechanicalpropertieswhichareontheorderofthosereportedforhumancancellousbone.SeeAppendixX1Rationaleforfurtherinformationregardingtheappropriatenessofusingthespecifiedfoamasamodelforhumancancellousbone.1.4Thisspecificationcoverscompositionalrequirements,physicalrequirements,mechanicalrequirements,andtestmethodsforrigidpolyurethanefoaminthesolidfinalform.1.5Thisspecificationprovidesqualificationcriteriaforvendororend-userprocessesandacceptancecriteriaforindividualmateriallots.1.6Thisspecificationprovidesmechanicalpropertiesoffivedifferentgradesoffoaminthesolidfinalform.Afoamthatdoesnotmeetthespecifiedmechanicalpropertiesshallbeidentifiedasanungradedfoam.1.7ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.8Thefollowingprecautionarystatementpertainstothetestmethodportiononly,Section8,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C45
【国际标准分类号】:11_040_01
【页数】:6P.;A4
【正文语种】:英语