【英文标准名称】:Sodiumcarbonateforindustrialuse;Determinationofsulphatecontent;Bariumsulphategravimetricmethod
【原文标准名称】:工业用碳酸钠.硫酸盐含量的测定.硫酸钡重量法
【标准号】:ISO743-1976
【标准状态】:作废
【国别】:国际
【发布日期】:1976-02
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC47
【标准类型】:()
【标准水平】:()
【中文主题词】:化学制品;化学分析和试验;化学分析;重量分析;硫酸钡;硫酸盐;含量测定;碳酸钠
【英文主题词】:chemicals;bariumsulphates;chemicalanalysisandtesting;gravimetricanalysis;chemicalanalysis;determinationofcontent;sulphates;sodiumcarbonate;sodiumcarbonates
【摘要】:
【中国标准分类号】:G10
【国际标准分类号】:5603;5590
【页数】:3P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforPetrographicExaminationofHardenedConcrete
【原文标准名称】:硬化混凝土的岩相检查的标准实施规程
【标准号】:ASTMC856-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:C09.65
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:集料;含孔率;碱硅反应;分析;变坏;试验;火焰效应;硬化水泥;显微术;粘贴;岩相学;次生矿床
【英文主题词】:aggregates;airvoids;alkali-silicareaction;analysis;deterioration;examination;fireeffects;hardenedconcrete;microscopy;paste;petrographic;secondarydeposits
【摘要】:1.1Thispracticeoutlinesproceduresforthepetrographicexaminationofsamplesofhardenedconcrete.Thesamplesexaminedmaybetakenfromconcreteconstructions,theymaybeconcreteproductsorportionsthereof,ortheymaybeconcreteormortarspecimensthathavebeenexposedinnaturalenvironments,ortosimulatedserviceconditions,orsubjectedtolaboratorytests.Thephrasex201C;concreteconstructionsx201D;isintendedtoincludeallsortsofobjects,units,orstructuresthathavebeenbuiltofhydrauliccementconcrete.Note18212;Aphotographicchartofmaterials,phenomena,andreactionproductsdiscussedinSections8-13andTables1-6areavailableasAdjunctC856(ADJCO856).1.2Thepetrographicproceduresoutlinedhereinareapplicabletotheexaminationofsamplesofalltypesofhardenedhydraulic-cementmixtures,includingconcrete,mortar,grout,plaster,stucco,terrazzo,andthelike.Inthispractice,thematerialforexaminationisdesignatedasx201C;concrete,x201D;eventhoughthecommentarymaybeapplicabletotheothermixtures,unlessthereferenceisspecificallytomediaotherthanconcrete.1.3AnnexA1outlinesanuranylacetatemethodforidentifyinglocationswherealkali-silicagelmaybepresent.Itisarequirementthatthesubstancesinthoselocationsmustbeidentifiedusinganyothermoredefinitivetechniques,suchaspetrographicmicroscopy.1.4Thepurposesofandproceduresforpetrographicexaminationofhardenedconcretearegiveninthefollowingsections:
【中国标准分类号】:
【国际标准分类号】:91_100_30
【页数】:17P.;A4
【正文语种】: