Designation:C371−09(Reapproved2014)StandardTestMethodforWire-ClothSieveAnalysisofNonplasticCeramicPowders1ThisstandardisissuedunderthefixeddesignationC371;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationoftheparticlesizedistributionofnonplasticceramicpowderssuchasalumina,silica,feldspar,pyrophyllite,nephelinesyenite,talc,titanates,andzirconusingwireclothsieves.1.2Materialscontainingalargeamountoffines,containingagglomerates,orthatarenonfree-flowing,arewet-sievedtoremoveexcessivefinesortodisperseagglomeratesbeforeperformingthetest.Thistechniqueisnotapplicabletomate-rialsthatare,toanydegree,watersoluble.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunits,orareothercustomaryunits(inthecaseofsieveframediameterandsievenumber),thatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C322PracticeforSamplingCeramicWhitewareClaysE11SpecificationforWovenWireTestSieveClothandTestSieves3.SignificanceandUse3.1Sieveanalysesarecarriedouttodeterminetheparticlesizedistributionofpowderswhich,inturn,areusedtoqualifythosematerialsastotheirusefulnessintheprocessunderconsideration.Sinceparticlesizeanalyseshaveonlyrelativesignificance,theresultsshouldbeconsideredonlywheretheycorrelatewithprocesscharacteristics.Theparameterthatisbeingmeasuredinthistestistheamountofmaterialthatwillpassthroughaclothhavingtheoreticallysquareopenings.Itmustberememberedthatalltheholesarenotsquare,norunifor...
