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【英文标准名称】:StandardTestMethodforAbsorptionCoefficientofEthylenePolymerMaterialPigmentedwithCarbonBlack
【原文标准名称】:用炭黑着色的乙烯聚合材料吸收系数的试验方法
【标准号】:ASTMD3349-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D09.18
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:炭黑;乙烯;颜料;塑料;试验
【英文主题词】:absorptioncoefficient;carbonblack;ethylenepolymer
【摘要】:Theabsorptioncoefficientofpolyolefinpolymerpigmentedwithcarbonblackisusefultojudgethedegreeanduniformityofdispersionofthepigment,andtheadequacyofthequantitativelevelofpigmentaddition.Thesefactorsareusedtopredicttheperformanceofthepolymermaterialinresponsetoprolongedexposuretoultravioletlightasevidencedbyminimalchangesinspecificproperties.Note18212;ThistestmethodwasdevelopedtoevaluateethylenepolymermaterialspigmentedwithsmallparticlesizecarbonblackssuitableforUVprotection.Itisnotknownhowaccurateandreproduciblethetestwouldbewithlargerparticlesizeblacks.1.1Thistestmethodmeasurestheamountoflighttransmittedthroughafilmofcarbonblackpigmentedethylenepolymer.1.2Aftercalculationoftheamountoflightandfilmthickness,anabsorptioncoefficientiscalculated.1.3Whenevertwosetsofvaluesarepresented,indifferentunits,thevaluesinthefirstsetarethestandard,whilethoseinparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:5P.;A4
【正文语种】: