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【英文标准名称】:Modifiedstarch.Determinationofadipicacidcontentofacetylateddi-starchadipates.Gas-chromatographicmethod
【原文标准名称】:改良淀粉.乙酰二淀粉己二酸酯中己二酸含量的测定.气相色谱法
【标准号】:BSENISO11215-1998
【标准状态】:现行
【国别】:英国
【发布日期】:1998-07-15
【实施或试行日期】:1998-07-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:乙酰化作用;酸含量;己二酸酯;己二酸;校准;碳水化合物;化学分析和试验;测定;含量测定;食品;气相色谱法;实验室间试验;数学计算;方法;修正的;精密度;定量分析;再现性;抽样方法;淀粉;统计方法分析;滴定法;容量分析
【英文主题词】:Acetylation;Acidcontent;Adipates;Adipicacid;Calibration;Carbohydrates;Chemicalanalysisandtesting;Determination;Determinationofcontent;Foodproducts;Gaschromatography;Inter-laboratorytests;Mathematicalcalculations;Methods;Modified;Precision;Quantitativeanalysis;Reproducibility;Samplingmethods;Starches;Statisticalmethodsofanalysis;Titration;Volumetricanalysis
【摘要】:ThisInternationalStandardspecifiesamethodforthegaschromatographicdeterminationoftotaladipiccontentandfreeadipicacidcontentofacetylateddi-starchadipates.
【中国标准分类号】:X11
【国际标准分类号】:67_180_20
【页数】:20P.;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforMetallurgicalAnalysisforGasDistributionSystemComponents
【原文标准名称】:气体分配系统元部件的金相分析
【标准号】:ASTMF1376-1992(2005)
【标准状态】:现行
【国别】:
【发布日期】:1992
【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】:F01.10
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:试验;气体分配;燃气配件
【英文主题词】:Chromiumalloys;Corrosionresistantmetallicalloys;Corrosiveserviceapplications;Gasdistributionsystems;Metallurgy;Molybdenum-electronicapplications;Nickelalloys;Semiconductorcleanrooms;Stainlesssteel-gasdistributionsystems;
【摘要】:Thisguidedefinesaprocedurefortestingcomponentsbeingconsideredforinstallationintoahigh-puritygasdistributionsystem.Applicationofthisguideisexpectedtoyieldcomparabledataamongcomponentstestedforpurposesofqualificationforthisinstallation.Thisguideestablishesaprocedurefordeterminingtheelementalcompositionandmetallurgicalcharacteristicsofmetalusedtofabricatecomponentsforhighpuritygasdistributionsystemsinthesemiconductorindustry.Thecompositionandmetallurgyofstainlesssteelmaybeexpectedtoaffectpropertiesofimportancetothisapplication,includingsurfaceroughness,incidenceofsurfacedefects,passivation,corrosionresistance,andwelding.1.1Thisguidecoverscorrosionresistantmetallicalloysofthegeneralclassstainlesssteel,containingchromium,nickel,manganese,andsiliconasmajoralloyingadditionsandpossiblymolybdenum,thatarequalifiedorspecifiedforthematerialsofcomponentsusedinhigh-puritygassupplysystemsforthesemiconductorindustry.Thisguideisprimarilyintendedfortestingtodetermineconformancetoapplicablecompositionandmetallurgicalspecificationsasstatedinsupplierproductspecificationsorcustomerpurchasespecifications,orboth.1.2Elementsanalyzedandreportedinthisguideareasfollows:1.2.1Thealloyingadditionschromium,nickel,andmolybdenum(ifspecifiedinalloy,asintype316L),1.2.2Theminorelementsandresidualsmanganese,silicon,copper,cobalt,andstabilizerssuchastitaniumandcolumbium(niobium),ifpresent,1.2.3Carbon,sulfurandphosphorus,1.2.4Nitrogenandoxygengases,1.2.5Anyadditionalminorelementadditionsthatmaybemadeaspartofthemeltingandcastingpractice,suchasaluminumandcalcium,and1.2.6Availablestandardanalyticalandreportingtechniquesaredescribedfortheseelements.1.3Metallurgicalcharacteristicstobeanalyzedandreportedareinclusioncontents,grainstructure,mechanicalproperties,andintergranularcorrosionsusceptibility.1.4Limitations:1.4.1ThisguideislimitedtocorrosionresistantmetalalloysofthegeneralclassstatedintheScope.1.4.2Thetestmethodscitedinthisguidearenotintendedtoprecludetheuseofothergenerallyacceptedtechniquesofdemonstratedequivalentorsuperiorprecisionandbias.1.4.3Inclusionoftestingandanalysisproceduresforanygivenelementormetallurgicalcharacteristicinthisguideisnottobeconstruedasbeingarequirementforincorporationofthatelementormetallurgicalcharacteristicintoanyspecifications.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q82
【国际标准分类号】:77_040_01;91_140_65
【页数】:4P.;A4
【正文语种】: