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【英文标准名称】:StandardTestMethodforCarbonBlack-TotalandExternalSurfaceAreabyNitrogenAdsorption
【原文标准名称】:炭黑的标准试验方法.用氮吸收法测定总的和外部表面积
【标准号】:ASTMD6556-2007
【标准状态】:现行
【国别】:
【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】:D24.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:吸收;氮;烟灰;表面;试验方法
【英文主题词】:Brunauer/Emmett/Teller;carbonblack,B.E.T.;nitrogenadsorption;nitrogensurfacearea;statisticalthicknesssurfacearea;surfaceareabymultipointB.E.T.method,externalsurfacearea
【摘要】:Thistestmethodisusedtomeasurethetotalandexternalsurfaceareaofcarbonblacksbasedonmultipointnitrogenadsorption.TheNSAmeasurementisbasedontheB.E.T.theoryanditincludesthetotalsurfacearea,inclusiveofmicropores,porediameterslessthan2nm(20E).Theexternalsurfacearea,basedonthestatisticalthicknessmethod(STSA),isdefinedasthespecificsurfaceareathatisaccessibletorubber.CTABSurfaceArea(formerlyTestMethodD3765)hasbeenwithdrawn.TheCTABvaluemaybeestimatedfromtheSTSAvalueusingEq1.TheequationisbasedonalinearregressionoftheSTSAandCTABmeasuredvaluesoftheSRB5standards.1.1ThistestmethodcoversthedeterminationofthetotalsurfaceareabytheBrunauer,Emmett,andTeller(B.E.T.NSA)theoryofmultilayergasadsorptionbehaviorusingmultipointdeterminationsandtheexternalsurfaceareabasedonthestatisticalthicknesssurfaceareamethod.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Theminimumsafetyequipmentshouldincludeprotectivegloves,sturdyeyeandfaceprotection).
【中国标准分类号】:G49
【国际标准分类号】:71_060_10
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Safetyinelectroheatinstallations-Part4:particularrequirementsforarcfurnaceinstallations.
【原文标准名称】:电热装置的安全性.第4部分:电弧炉装置的特殊要求
【标准号】:NFC79-634/A1-2001
【标准状态】:现行
【国别】:法国
【发布日期】:2001-04-01
【实施或试行日期】:2004-04-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Arcfurnaces;Arcsmeltingfurnace;Definition;Definitions;Electricheating;Electricheatingappliances;Electricalengineering;Electricalsafety;Electroheatinginstallations;Furnaces;Industries;Metalworking;Metals;Metalworking;Occupationalsafety;Protectionagainstelectricshocks;Reductionfurnaces;Safety;Safetyengineering;Safetyregulations;Safetyrequirements;Specification(approval)
【摘要】:
【中国标准分类号】:K61
【国际标准分类号】:25_180_10
【页数】:7P.;A4
【正文语种】:其他