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【英文标准名称】:StandardTestMethodforRubberChemicalsx2014;DeterminationofParticleSizeofSulfurbySieving(Dry)
【原文标准名称】:橡胶加工用化学药品的试验方法:筛分法测定硫的粒度分布
【标准号】:ASTMD4570-2002(2007)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:D11.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:干法筛析
【英文主题词】:drysieving;particlesize;sulfur;Chemicalanalysis--rubberchemicals/materials;Drysieveanalysis;Particleanalysis--rubbermaterials;Rubberchemicals;Sieveanalysis--rubber;Size/sizedistributionanalysis;Sulfur--rubber
【摘要】:Thistestmethodisusedtoevaluatesulfurforsuitabilityasarubbervulcanizingagent.Sulfurparticlesmustbesmallenoughtodissolveinrubberduringcuretoproduceauniformnetworkofcross-links.Thistestmethodisusedasaqualitycontrolmethodtoensurethatlargeparticlesarenotpresent(andtodetermineifthesulfurfollowsatypicalpatternforsizedistribution).1.1Thistestmethodcoverstheparticlesizemeasurementofthecoarsefractionofgroundsulfurs.Itislimitedtomeasurementofparticlesgreaterthan45x03BC;m(No.325sieve).Ifthesulfurisveryfineandthescreensbecomepluggedbythecakingofthesulfur,itmaybenecessarytouseawetsieveprocedureinstead.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G44
【国际标准分类号】:83_060
【页数】:2P.;A4
【正文语种】:英语