作者:标准资料网 时间:2024-05-03 23:35:18   浏览:9339   来源:标准资料网

【英文标准名称】:StandardTestMethodsforChemicalAnalysisofGlassSand
【原文标准名称】:玻璃沙的化学分析标准试验方法
【标准号】:ASTMC146-1994a(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1994
【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】:C14.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:chemicalanalysis;glasssand;refereeanalysis;routineanalysis;Ironoxidecontent;Lossonignition(LOI);Refereemethods;Routineanalysis;Sand;Silicacontent;Spectrophotometry--atomicabsorption;Spectroscopy--atomicabsorption;Titania;Tita
【摘要】:Thesetestmethodscanbeusedtoensurethatthechemicalcompositionoftheglasssandmeetsthecompositionalspecificationrequiredforthisrawmaterial.Thesetestmethodsdonotprecludetheuseofothermethodsthatyieldresultswithinpermissiblevariations.Inanycase,theanalystshouldverifytheprocedureandtechniqueusedbymeansofaNationalInstituteofStandardsandTechnology(NIST)standardreferencematerialorothersimilarmaterialofknowncompositionhavingacomponentcomparablewiththatofthematerialundertest.AlistofstandardreferencematerialsisgivenintheNISTSpecialPublication260,currentedition.1.1Thesetestmethodscoverthechemicalanalysisofglasssands.Theyareusefulforeitherhigh-silicasands(99%+silica(SiO2))orforhigh-aluminasandscontainingasmuchas12to13%alumina(Al2O3).Generallynonclassical,thetestmethodsarerapidandaccurate.TheyincludethedeterminationofsilicaandoftotalR2O3(see11.2.4),andtheseparatedeterminationoftotalironasironoxide(Fe2O3),titania(TiO2),chromiumoxide(Cr2O3),zirconia(ZrO2),andignitionloss.Includedareproceduresforthealkalineearthsandalkalies.High-aluminasandsmaycontainasmuchas5to6%totalalkaliesandalkalineearths.Itisrecommendedthatthealkaliesbedeterminedbyflamephotometryandthealkalineearthsbyabsorptionspectrophotometry.1.2Thesetestmethods,iffollowedindetail,willprovideinterlaboratoryagreementofresults.
【中国标准分类号】:Q33
【国际标准分类号】:81_040_10
【页数】:12P.;A4
【正文语种】:英语