ASTM D4492-2010 气相色谱法进行苯分析的标准试验方法

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【英文标准名称】:StandardTestMethodforAnalysisofBenzenebyGasChromatography
【原文标准名称】:气相色谱法进行苯分析的标准试验方法
【标准号】:ASTMD4492-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D16.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:benzene;gaschromatography;purity;Impurities--organiccompounds;Nonaromaticimpurities;Purityanalysis--paints/relatedcoatings/materials;Traceelements--paints/relatedcoatings/materials;Benzene--paints/relatedcoatings/materials;Gaschromatogra
【摘要】:Thistestmethodissuitablefordeterminingtheconcentrationsofknownimpuritiesinfinishedbenzeneandforuseasanintegralqualitycontroltoolwherebenzeneiseitherproducedorusedinamanufacturingprocedure.Itisgenerallyappliedtoimpuritiessuchasnonaromaticscontainingninecarbonsorless,toluene,C8aromatics,and1,4-dioxane.Absolutepuritycannotbedeterminedifunknownimpuritiesarepresent.TestMethodD852isgenerallyusedasacriteriafordeterminingtheabsolutepurity.1.1Thistestmethodcoversthedeterminationofnormallyoccurringtraceimpuritiesin,andthepurityof,finishedbenzenebygaschromatography.1.2Thistestmethodisapplicableforbenzenepuritiesof99.80weight%orhigher.1.3Thelowerlimitfordetectionfornon-aromaticimpuritiesis50mg/kg.Thelowerlimitofdetectionforindividualaromatichydrocarbonimpurities10mg/kg.Thelowerlimitofdetectionfor1,4-dioxaneis5mg/kg.1.4Indeterminingtheconformanceofthetestresultsusingthismethodtoapplicablespecifications,resultsshallberoundedoffinaccordancewiththeroundingoffmethodofPracticeE29.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection8.
【中国标准分类号】:G16
【国际标准分类号】:71_080_15
【页数】:4P.;A4
【正文语种】:英语


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【英文标准名称】:Specificationforcorrosion-resistingsteel,mushroom-headed,slotted-drive,bolts(strengthaclass880/1080)
【原文标准名称】:耐腐蚀钢制T头开槽螺栓用规范(强度等级880/1080)
【标准号】:BS4A114-1999
【标准状态】:作废
【国别】:英国
【发布日期】:1999-07-15
【实施或试行日期】:1999-07-15
【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】:航空器部件;螺栓;耐腐蚀钢;尺寸公差;尺寸规格;外螺纹紧固件;紧固件;硬度;耐热材料;长度;材料的机械性能;椭圆头紧固件;岩石锚钉;槽头紧固件;螺纹零件;螺纹紧固件;统一螺纹
【英文主题词】:Aircraftcomponents;Bolts;Corrosion-resistantsteels;Dimensionaltolerances;Dimensions;External-threadfasteners;Fasteners;Hardness;Heat-resistantmaterials;Length;Mechanicalpropertiesofmaterials;Oval-headfasteners;Rockanchors;Slotted-headfasteners;Threadedcomponents;Threadedfasteners;Unifiedscrewthreads
【摘要】:ThisBritishStandardspecifiesmaterialsandmanufacture,dimensions,protectivetreatmentandqualityassurancerequirementsforsteel,corrosion-resistingandheatresistingsteel,mushroom-headed,slotted-drive,bolts(strengthclass880/1080MPa)NOTEThelatesteditionofanAerospaceSeriesstandardisindicatedbyaprefixnumber.
【中国标准分类号】:J13
【国际标准分类号】:49_030_20
【页数】:12P;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforTemperatureElectromotiveForce(emf)TablesforNon-LetterDesignatedThermocoupleCombinations
【原文标准名称】:非字符表示热电偶用温度电动势(EMF)表的标准指南
【标准号】:ASTME1751/E1751M-2009e1
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E20.04
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:钴
【英文主题词】:cobalt;coefficients;gold;iridium;iron;molybdenum;nickel;palladium;platinel;platinum;polynomial;rhenium;rhodium;thermocouple;tungsten;Cobalt;Coefficients;Electromotiveforce(EMF)tables;Goldmetals/alloys;Iridium;Iron;Molybdenum;Nick
【摘要】:Thesethermocouplecombinationshavebeendevelopedforspecificapplicationsbythewiremanufacturer(s).Ifadditionalinformationisrequired,consultASTMMNL12oroneofthefollowingthermocouplemanufacturers:CarpenterTechnology,EngelhardCorp.SpecialtyMetalsDiv.,HoskinsMfg.Co.,JohnsonMatthey,SigmundCohnCorp.1.1Thisguideconsistsofreferencetablesthatgivetemperature-electromotiveforce(emf)relationshipsforspecialpurpose,limiteduse,thermocouplecombinationsthatdonothavealetterdesignation.1.2Extensionwireorcompensatingextensionwiresarenotcoveredbythisguide.ASTMMNL12orthermocouplealloysuppliersshouldbeconsulted.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.
【中国标准分类号】:N11
【国际标准分类号】:17_200_20
【页数】:91P.;A4
【正文语种】:英语