ASTM D5817-2003a 试验用大颗粒、准圆度混合、干燥碳黑样品的标准实施规程
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【英文标准名称】:StandardPracticeforCarbonBlack,Pelleted8212;Reduction,Blending,andDryingofGrossSamplesforTesting
【原文标准名称】:试验用大颗粒、准圆度混合、干燥碳黑样品的标准实施规程
【标准号】:ASTMD5817-2003a
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D24.61
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:炭黑.(粒状);粒状炭黑;炭黑;混合
【英文主题词】:carbonblack;pelletedcarbonblack;reducingandblendingcarbonblack;
【摘要】:Severaltestmethodsforcarbonblackrequirethereductioninsamplesizeortheblendingofthetestsampletoreducethevariationofthemeasuredcharacteristic.Otherfactorsbeingequal,largersampleswilltendtobemorerepresentativeofthetotalsupply.Thispracticeprovidesproceduresforreducingthelargesampleobtainedfromthebagandbulksamplingpracticestoaconvenientsizeforconductinganumberofteststodescribethematerialandmeasureitsqualityinsuchamannerthatthesmallerportionismostlikelytobearepresentationofthebulksample.Failuretofollowtheproceduresinthispracticecouldresultinprovidinganonrepresentativesampletobeusedinsubsequenttesting.Individualtestmethodsprovideforminimumamountsofmaterialtobetested.TestMethodA,ReductionofSampleSize,istypicallyusedtoobtainanaliquotfromalargesample,splittingablackintotwoormoreequalportions,orreducingablendedblackfromTestMethodBtoaspecifiedsamplesize.Thefinalsampleisalwayssmallerthantheoriginalsampleandwouldnotbeconsideredtobeax201C;wellblendedx201D;sample.TestMethodB,BlendingofCarbonBlack,istypicallyusedtoprepareahomogeneoussample.Thehomogeneoussamplemaybeusedforseveraltests(seeNote3)ormaybereducedinsizebyTestMethodA.Thefinalsamplesizeisthesameastheoriginal.Whenasampleistobeblendedandreduced,thesampleshouldbeblended(TestMethodB)beforereduction(TestMethodA).Theblendingandreductionmustbedonebeforethesampleisdried(TestMethodC).1.1Thispracticedescribestheprocedureforblendingofpelletedcarbonblack,theprocedureforthereductionofgrosssamplesofpelletedcarbonblacktotheappropriatesizefortestingandthepreparationofthesamplefortesting.Thesetechniquesareintendedtominimizevariationsinmeasuredcharacteristicsbetweentestsamples.StandardterminologyrelatingtocarbonblacksamplesisfoundinTerminologyD3053.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q53
【国际标准分类号】:71_060_10
【页数】:3P.;A4
【正文语种】:
【原文标准名称】:试验用大颗粒、准圆度混合、干燥碳黑样品的标准实施规程
【标准号】:ASTMD5817-2003a
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D24.61
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:炭黑.(粒状);粒状炭黑;炭黑;混合
【英文主题词】:carbonblack;pelletedcarbonblack;reducingandblendingcarbonblack;
【摘要】:Severaltestmethodsforcarbonblackrequirethereductioninsamplesizeortheblendingofthetestsampletoreducethevariationofthemeasuredcharacteristic.Otherfactorsbeingequal,largersampleswilltendtobemorerepresentativeofthetotalsupply.Thispracticeprovidesproceduresforreducingthelargesampleobtainedfromthebagandbulksamplingpracticestoaconvenientsizeforconductinganumberofteststodescribethematerialandmeasureitsqualityinsuchamannerthatthesmallerportionismostlikelytobearepresentationofthebulksample.Failuretofollowtheproceduresinthispracticecouldresultinprovidinganonrepresentativesampletobeusedinsubsequenttesting.Individualtestmethodsprovideforminimumamountsofmaterialtobetested.TestMethodA,ReductionofSampleSize,istypicallyusedtoobtainanaliquotfromalargesample,splittingablackintotwoormoreequalportions,orreducingablendedblackfromTestMethodBtoaspecifiedsamplesize.Thefinalsampleisalwayssmallerthantheoriginalsampleandwouldnotbeconsideredtobeax201C;wellblendedx201D;sample.TestMethodB,BlendingofCarbonBlack,istypicallyusedtoprepareahomogeneoussample.Thehomogeneoussamplemaybeusedforseveraltests(seeNote3)ormaybereducedinsizebyTestMethodA.Thefinalsamplesizeisthesameastheoriginal.Whenasampleistobeblendedandreduced,thesampleshouldbeblended(TestMethodB)beforereduction(TestMethodA).Theblendingandreductionmustbedonebeforethesampleisdried(TestMethodC).1.1Thispracticedescribestheprocedureforblendingofpelletedcarbonblack,theprocedureforthereductionofgrosssamplesofpelletedcarbonblacktotheappropriatesizefortestingandthepreparationofthesamplefortesting.Thesetechniquesareintendedtominimizevariationsinmeasuredcharacteristicsbetweentestsamples.StandardterminologyrelatingtocarbonblacksamplesisfoundinTerminologyD3053.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q53
【国际标准分类号】:71_060_10
【页数】:3P.;A4
【正文语种】:
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