【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】:


Product Code:SAE ARP4205
Title:Aerospace Fluid Power - Hydraulic Filter Elements - Method for Evaluating Dynamic Efficiency With Cyclic Flow
Issuing Committee:A-6c1 Contamination And Filtration Committee
Scope:This SAE Aerospace Recommended Practice (ARP) describes a method for evaluating the performance of filter elements designed for Aerospace hydraulic systems. The performance is measured and reported in terms of filtration ratios and stabilized contamination level while testing with cyclic flow.