【英文标准名称】:Sodiumhydrogencarbonatforindustrialuse.Determinationofironcontent1,10phenanthrolinephotometricmethod.
【原文标准名称】:工业用碳酸氢钠.铁含量的测定.1.10-菲绕啉分光光度法
【标准号】:NFT20-446-1976
【标准状态】:现行
【国别】:法国
【发布日期】:1976-09-01
【实施或试行日期】:1976-10-06
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:化学分析;正菲咯啉;含量测定;化学分析和试验;工业产品;分光光度测量分析;菲咯啉;碳酸钠;产品;工业的;铁;分光光度法
【英文主题词】:Chemicalanalysisandtesting;Chemicals;Determinationofcontent;Iron;Photometry;Photometry(chemicalanalysis);Sodiumcarbonate
【摘要】:
【中国标准分类号】:G12
【国际标准分类号】:71_060_50
【页数】:3P;A4
【正文语种】:其他


【英文标准名称】:StandardTestMethodforBulkDensityofGranularRefractoryMaterials
【原文标准名称】:粒状耐火材料的松密度的标准试验方法
【标准号】:ASTMC357-2007(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【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】:C08.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:blottingcloth;boiling;bulkdensity;buret;granularrefractor;material;non-hydratable;sheen;Bulkdensity;Density--refractorymaterials;Granularrefractorymaterial;Nonhydratablerefractorymaterial;Refractories(general);Sheen;Waterdis
【摘要】:Granularrefractorymaterialsmaybeeitherrefractorygrainrawmaterialsthatareusedinthemanufactureoffinishedrefractoryproducts,orbulkgranularrefractorymaterialsthataresold,withorwithoutsomedegreeofprocessing,torefractoryconsumersforvarioususes.Ineithercase,characterizingthepropertiesofagranularrefractorymaterialisessentialinevaluatingitsqualityorconsistencyofqualityandindeterminingsuitabilityforenduse.Oneoftheimportantpropertiesisbulkdensitybecauseofitsrelationshiptoendproductquality,usage,andperformance.Therefractoriesproducercanusethistestmethodasoneofthequality-controltestsforhismanufacturedorminedrefractorygrainrawmaterialsorforevaluatingpotentialrefractorygrainrawmaterials.Fortherefractoriesconsumer,theprincipaluseofthistestmethodisintheevaluationofthequalityortheconsistencyofqualityofthegranularmaterialinpurchasedrefractorymixesorinbulkgranularrefractorymaterialsusedbytheconsumer.Thisisaprimarytestmethod,andthusissuitableforuseinspecifications,qualitycontrol,andresearchanddevelopment.Itcanalsoserveasarefereetestmethodinpurchasingcontractsoragreementsandasabasefordevelopmentofmorerapid,secondarytestmethodsforuseinqualitycontrolonmanufacturedrefractoryrawmaterials.Fundamentalassumptionsinherentinthistestmethodarethatthesampleisrepresentativeofthematerialingeneral,theparticlesizeofthesampleiswithintherangespecifiedbythetestmethod,thematerialisnotreadilyhydratable,andthesizeandquantityofporesinthematerialpermitsremovalofsurfacewaterwithoutdrainagefromtheporesthemselves.Deviationfromanyoftheseassumptionsnegatestheusefulnessofthetestresults.Ininterpretingtheresultsofthistestmethod,itmustberecognizedthatthespecificgravityofthematerialaswellastheporosityaffectsthevalueobtainedforbulkdensity.Thus,comparisonsofresultsshouldonlybemadebetweenlikematerialsorwithfullrecognitionofinherentdifferencesbetweenthematerialsbeingcompared.1.1Thistestmethodcoversaprocedurefordeterminingthebulkdensityofgranularrefractorymaterials,commercialproductswhichusuallyhaveparticlesthatareretainedona0.265-in.(6.7-mm)orcoarsersieve.Note18212;Thistestmethodisnotsuitableformaterialsthathydrateinboilingwater.1.2Units8212;Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.2.1Exceptions8212;InSections4,7,and8,theapparatususedisonlyavailableinSIunits.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:3P.;A4
【正文语种】:英语