ASTM D6403-1999(2004) 原材料和用过的材料中测定潮气的标准试验方法
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【英文标准名称】:StandardTestMethodforDeterminingMoistureinRawandSpentMaterials
【原文标准名称】:原材料和用过的材料中测定潮气的标准试验方法
【标准号】:ASTMD6403-1999(2004)
【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】:D31.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:单宁分析;植物单宁分析;挥发物质;潮气
【英文主题词】:moisture;tanninanalysis;vegetabletanninanalysis;volatilematter
【摘要】:Thistestmethodisusedtodeterminethemoisturecontentofmaterials(raworspent)thataretobeextractedfortanninanalysis.Thevalueobtainedformoisturecontentbythistestmethodisusedtocalculatetheresultsoftheotheranalysesonthismaterialtoamoisture-freebasis.ThespecimensareobtainedfromthematerialpreparedforextractioninPracticeD6405.Tanningmaterialscontainmoistureinvaryingamounts,dependingbothonthenatureofthematerialandontheclimaticconditions,thereforesamplingmustbecarriedoutasquicklyasisconsistentwiththoroughnessinordertoavoidchangesinmoisturecontent.Negativeerrorsmayoccurinthemoisturedeterminationbecauseundertheconditionsofthismethodtheremayberetentionofmoisturebycertaincomponents(forexample,hydratedsaltsorwaterboundtoorganicstructures)oftheraworspentmaterialorbecauseofoxidationofothercomponents(forexample,tannins)oftheraworspentmaterial.Positiveerrorsmayoccurinthemoisturedeterminationbecauseundertheconditionsofthistestmethodtheremaybevolatilizationofcertaincomponentsoftheraworspentmaterialotherthanwater.Itisknownthatotherfactorscanalsoaffectthequantityofvolatilematter(moisture)releasedbythespecimen.Thesefactorsincludebutarenotlimitedto:particlesizeofthetestspecimen,quantityoftestspecimen,oventemperature,exposuretimeintheoven,shapeofthespecimencontainer,andtypeofoven(forexample,gravityormechanicalconvection)used.Becauseofthepossibilityofunknownerrorsinthistestmethoditisessentialthatthemethodbefollowedexactlyinordertoobtainreproducibleresultsbothamongspecimenswithinalaboratoryandforanalysesbetweenlaboratories.1.1Thistestmethodisintendedforuseindeterminingthemoisturecontentinrawandspentmaterialsthatareextractedfortanninanalysis.Themoisturecontentofthesampleisoperationallydefinedtobeequaltotheweightlossexperiencedasaresultoftheevaporationwhichoccursinthedryingoven.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:59_140_10(PROCESSESANDAUXILIARYMATERIALS)
【页数】:3P.;A4
【正文语种】:
【原文标准名称】:原材料和用过的材料中测定潮气的标准试验方法
【标准号】:ASTMD6403-1999(2004)
【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】:D31.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:单宁分析;植物单宁分析;挥发物质;潮气
【英文主题词】:moisture;tanninanalysis;vegetabletanninanalysis;volatilematter
【摘要】:Thistestmethodisusedtodeterminethemoisturecontentofmaterials(raworspent)thataretobeextractedfortanninanalysis.Thevalueobtainedformoisturecontentbythistestmethodisusedtocalculatetheresultsoftheotheranalysesonthismaterialtoamoisture-freebasis.ThespecimensareobtainedfromthematerialpreparedforextractioninPracticeD6405.Tanningmaterialscontainmoistureinvaryingamounts,dependingbothonthenatureofthematerialandontheclimaticconditions,thereforesamplingmustbecarriedoutasquicklyasisconsistentwiththoroughnessinordertoavoidchangesinmoisturecontent.Negativeerrorsmayoccurinthemoisturedeterminationbecauseundertheconditionsofthismethodtheremayberetentionofmoisturebycertaincomponents(forexample,hydratedsaltsorwaterboundtoorganicstructures)oftheraworspentmaterialorbecauseofoxidationofothercomponents(forexample,tannins)oftheraworspentmaterial.Positiveerrorsmayoccurinthemoisturedeterminationbecauseundertheconditionsofthistestmethodtheremaybevolatilizationofcertaincomponentsoftheraworspentmaterialotherthanwater.Itisknownthatotherfactorscanalsoaffectthequantityofvolatilematter(moisture)releasedbythespecimen.Thesefactorsincludebutarenotlimitedto:particlesizeofthetestspecimen,quantityoftestspecimen,oventemperature,exposuretimeintheoven,shapeofthespecimencontainer,andtypeofoven(forexample,gravityormechanicalconvection)used.Becauseofthepossibilityofunknownerrorsinthistestmethoditisessentialthatthemethodbefollowedexactlyinordertoobtainreproducibleresultsbothamongspecimenswithinalaboratoryandforanalysesbetweenlaboratories.1.1Thistestmethodisintendedforuseindeterminingthemoisturecontentinrawandspentmaterialsthatareextractedfortanninanalysis.Themoisturecontentofthesampleisoperationallydefinedtobeequaltotheweightlossexperiencedasaresultoftheevaporationwhichoccursinthedryingoven.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:59_140_10(PROCESSESANDAUXILIARYMATERIALS)
【页数】:3P.;A4
【正文语种】:
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