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ASTM C27-1998(2002) 耐火土及高矾土耐火砖的标准分类

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【英文标准名称】:StandardClassificationofFireclayandHigh-AluminaRefractoryBrick
【原文标准名称】:耐火土及高矾土耐火砖的标准分类
【标准号】:ASTMC27-1998(2002)
【标准状态】:现行
【国别】:
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:C08.92
【标准类型】:(Classification)
【标准水平】:()
【中文主题词】:耐火材料;砖;分类;耐火粘土
【英文主题词】:fireclaybrick;high-aluminabrick;properties;
【摘要】:Alumina-silicarefractorybrickisproducedfromvariouscombinationsofaluminaandsilica-containingmaterials.Thesebrickscanvaryinchemicalcompositionfromalmost100%aluminaandlittlesilicatoalmost100%silicaandlittlealumina.Itisthereforeusefultoestablishaclassificationschemebasedonphysicalpropertiesandchemicalanalysis.Onegroup,fireclaybrick,isclassifiedbasedonphysicalpropertiessincesomeoverlapofaluminaandsilicacontentcanoccur.Asecondgroup,high-aluminabrick,isclassifiedprimarilybasedonaluminacontent.Theclassificationallowsthosefamiliarwithrefractorymaterialstogroupsimilarproductsfromvarioussuppliersinastandardandconsistentmanner.1.1Thisclassificationcoversmachine-madefireclayandhigh-aluminarefractorybrick,anditspurposeistosetforththevariousclassesandtypesofthesematerialsinaccordancewiththeirnormalandcharacteristicproperties,whichareimportantintheiruse.
【中国标准分类号】:Q15
【国际标准分类号】:81_080
【页数】:2P.;A4
【正文语种】:


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【英文标准名称】:StandardGuideforXMLDTDDesign,ArchitectureandImplementation
【原文标准名称】:XMLDTD的设计、构造和实现标准指南
【标准号】:ASTME2183-2002
【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(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Computersoftware;ExtensibleMarkupLanguage;Materialstesting;Publichealth;Specification
【摘要】:
【中国标准分类号】:C05
【国际标准分类号】:35_240_60
【页数】:14P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsforAromaticsinMineralSpiritsbyGasChromatography
【原文标准名称】:气相色谱法测定溶剂油中芳烃的标准试验方法
【标准号】:ASTMD3257-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D01.35
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:芳族化合物;芳烃;含量测定;涂料;溶剂;试验
【英文主题词】:aromaticsinmineralspirits;ethylbenzeneinmineralspirits;gaschromatography(GC);mineralspirits
【摘要】:Thesetestmethodsweredevelopedtomeasurethetypesandamountsofaromaticsinmineralspiritstodeterminecompliancewithairpollutionregulationsthatrestrictthearomaticcontentofsolvents.Theyhavebeendemonstratedtobeworkableandtoproduceaccurateresults.However,duetothesensitivityoftheteststooperatingvariables,somelaboratorieshavinglimitedexperiencewithgaschromatographicanalysesofhydrocarbonsmayexperiencedifficultyinperformingthetests.1.1Thesetestmethodscoverthedeterminationofethylbenzeneandtotaleight-carbon(C8)andheavieraromaticsintheconcentrationrangefrom0.1to30%inmineralspiritshavingadistillationrangefrom149to210176;C(300to410176;F)asdeterminedbyTestMethodD86.Theprocedurespermittheidentificationandcalculationofconcentrationsofaromaticcomponentsto0.1volume%.1.2Itisrecognizedbyanalyticalchemiststhatasinglecolumngaschromatographyanalysisofanunknownsampleisrisky.Insuchcases,multipleanddifferentanalyticaltechniquesmustbeusedforabsolutelypositiveidentification,forexample,severaldifferentgaschromatographycolumns,gaschromatography/massspectrometer,orgaschromatography/infrared,etc.Inthesetestmethodsthematerialisknownandisclearlydefined.1.3Oxygenatedcompounds,ifpresent,mayinterfereandcauseerroneousresults.Suchoxygenatedcompoundsarenotnormallypresentinmineralspirits.1.4Threetestmethodsarecoveredasfollows:1.4.1TestMethodAmeasurementofethylbenzenecontent,C8plushigheraromatics(exceptethylbenzene),andtotalaromaticsbymeansofasinglepackedcolumngaschromatographicanalysis.1.4.2TestMethodBmeasurementofethylbenzenecontentbymeansofarapidpackedcolumngaschromatographicanalysis.1.4.3TestMethodCmeasurementofethylbenzenecontent,C8plushigheraromatics(exceptethylbenzene)andtotalaromaticsbymeansofacapillarycolumngaschromatographicanalysis.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Forpurposesofdeterminingconformanceofanobservedoracalculatedvalueusingthistestmethodtorelevantspecifications,testresult(s)shallberoundedoff"tothenearestunit"inthelastright-handdigitusedinexpressingthespecificationlimit,inaccordancewiththerounding-offmethodofPracticeE29.1.7Forhazardinformationandguidance,seethesupplier''sMaterialSafetyDataSheet.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E33
【国际标准分类号】:87_060_30
【页数】:8P.;A4
【正文语种】: