BS EN ISO 6142-2006 气体分析.校准气体混合物的制备.称重法

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【英文标准名称】:Gasanalysis-Preparationofcalibrationgasmixtures-Gravimetricmethod
【原文标准名称】:气体分析.校准气体混合物的制备.称重法
【标准号】:BSENISO6142-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2001-07-15
【实施或试行日期】:2001-07-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesagravimetricmethodforthepreparationofcalibrationgasmixturesincylindersofwhichthetargetaccuracyofthecompositionhasbeenpre-defined.Itisapplicableonlytomixturesofgaseousortotallyvaporizedcomponentswhichdonotreactwitheachotherorwiththecylinderwalls.Aprocedureisgivenforamethodofpreparationbasedonrequirementsforthefinalgasmixturecompositiontobewithinpre-setlevelsofuncertainty.Multi-componentgasmixtures(includingnaturalgas)andmultipledilutionmixturesareincludedinthisInternationalStandardandareconsideredtobespecialcasesofthesinglecomponentgravimetricpreparationmethod.ThisInternationalStandardalsodescribestheprocedureforverifyingthecompositionofgravimetricallypreparedcalibrationgases.Providedrigorousandcomprehensivequalityassuranceandqualitycontrolproceduresareadoptedduringthepreparationandvalidationofthesegravimetricgasmixtures,calibrationgasesofthehighestaccuracycanbeobtainedforawiderangeofgasmixtures,incomparisonwithothermethodsofpreparingsuchgases.
【中国标准分类号】:G86
【国际标准分类号】:71_040_40
【页数】:46P;A4
【正文语种】:英语


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基本信息
标准名称:弯曲校正机完好要求和检查评定方法
中标分类:
发布日期:1900-01-01
实施日期:1997-01-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:2页
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所属分类:
【英文标准名称】:StandardTestMethodforMechanicalSealStrengthTestingforRoundCupsandBowlContainerswithFlexiblePeelableLids
【原文标准名称】:测定带柔性易拉盖的圆杯和碗容器的机械密封强度的标准试验方法
【标准号】:ASTMF2824-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:F02.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:averagesealstrength;cupsroundcontainers;flexible;gripseparationrate;lid;packaging;peaksealstrength;peel;peelangle;seal;sealarea;sealstrength
【摘要】:TestMethodF88hasbeenthestandardforthemechanicalpeelstrengthtestingofpeelablesealssincethe1960s.Normallythetestingisrunonaportionoftheseal.Theresultisanactualsealstrengthpictureofthatportionoftheseal.Thistestmethodisdifferentinthattheentirepackagesealispeeledopenanddatacollectedfortheentiresealedarea.nbsp;nbsp;nbsp;Thistestmethodisatoolforqualityassuranceuseaswellasperformanceevaluationofasealduringseparation.nbsp;nbsp;nbsp;Withappropriatesoftware,dataiscollecteddepictingthesealstrengthoftheentirelengthoftheseal.Asaresult,itispossibletoseesealstrengthvariations,asthesealispeeledapart,therebyevaluatingtheconsistencyanduniformityoftheseal(seeFig.1).1.1Thistestmethoddescribesamethodforthemeasurementofmechanicalsealstrengthwhileseparatingtheentirelid(cover/membrane)fromarigidorsemi-rigidroundcontainer.1.2ThistestmethoddiffersfromTestMethodF88.TestMethodF88testsaportionofthesealwhereasthistestmethodteststheforcerequiredtoseparatetheentirelid(cover/membrane)fromthecontainer.1.3Thistestmethodisusedtodeterminethecontinuousandmaximumforcesrequiredtoseparatethelid(cover/membrane)fromthecontainer.1.4Thistestmethodusesanangleofpullof45x00B0;,howeverotheranglesofpullmaybeusedprovidedresultsaredocumentednotingtheusedangleofpullandsaidprocedureisvalidated.1.5Typicalexamplesofcontainershapesthatcouldbetestedusingthisorasimilarmethodincludeoval,rectangular,andcircularwithsingleormultiplecavitieshavingasealedlid(cover/membrane).Examplesofproductspackagedinthesetypesofcontainersare:readymeals,creamers,coffee,yogurts,householdfresheners,chemicalandpharmaceuticalproducts,andnumerousothersnotmentioned.However,thistestmethod,describedwithin,isspecificallyforroundcontainers.1.6Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A82
【国际标准分类号】:55_040
【页数】:5P.;A4
【正文语种】:英语