ASTM D5227-2001(2008)e1 测量聚烯烃可提取正乙烷含量的标准试验方法

作者:标准资料网 时间:2024-05-22 10:53:29  浏览:9097   来源:标准资料网

【英文标准名称】:StandardTestMethodforMeasurementofHexaneExtractableContentofPolyolefins
【原文标准名称】:测量聚烯烃可提取正乙烷含量的标准试验方法
【标准号】:ASTMD5227-2001(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【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】:D20.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ethylene-propylenecopolymers;ethylene-vinylacetatecopolymers;extractables;FDA;hexane;plastics;polyethylene;solventextraction;Ethylene-propylenecopolymers;Ethylene-vinylacetate(EVA)copolymer;Extractablemattercontent;Hexaneextrac
【摘要】:FDArequirementsformaximumextractablesarespecifiedforresinanduses.Thistestmethodprovidesameanstodeterminetheamountofhexane-solublelowmolecularweightmaterialpresentinpolyolefins.Itisapplicabletoresinscontaininggreaterthan0.20%extractables.1.1Thistestmethoddescribesanextraction/gravimetricprocedurefordeterminationoftheamountofhexanesolublelowmolecularweightmaterialpresentinpolyethylene,polypropylene,ethylene-propylenecopolymers,andethylene-vinylacetatecopolymers.ThistestmethodisamodificationoftheFoodandDrugAdministration(FDA)procedurefordetermininghexaneextractablesofpolyolefins.Thistestmethodisbaseduponthepresumptionthattheweightoftheresidueextractpresentinthesolventisequaltotheamountextractedfromthefilmsampleandcouldthereforebequantifiedbymeasuringtheweightlossoftheextractedfilm,eliminatingthecomplexandtime-consumingevaporationprocessdescribedin21CFR177.1520.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Unitsusedin21CFR177.1520arealsousedinthistestmethod.UnitsareinconformancewithFederalCode21CFR177.1520,fromwhichthistestmethodisderived.Note18212;ThereisnoknownISOequivalentISOtothistestmethod.
【中国标准分类号】:G16
【国际标准分类号】:83_080_20
【页数】:4P.;A4
【正文语种】:英语