【英文标准名称】:StandardTestMethodforDeterminationofPercentHydroxylonCelluloseEstersbyPotentiometricTitration-AlternativeMethod
【原文标准名称】:电位滴定转换法测定纤维素酯中羟基百分率的标准试验方法
【标准号】:ASTMD5897-1996(2007)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:D01.36
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:纤维素酯;测定;羟值;电位法;试验方法;滴定
【英文主题词】:celluloseesters;percenthydroxyl;potentiometrictitration
【摘要】:ThistestmethodprovidesasimplermeansforthedeterminationofthehydroxylcontentofcelluloseestersthanthepreparationandmeasurementofthecarbanilatederivativedescribedinTestMethodsD817andD871.Thehydroxylcontentisanimportantindicatorofsolubilityandreactivity.1.1Thistestmethodcoversaprocedurefordeterminingthepercenthydroxyloncelluloseestersbypotentiometrictitration.Thetypicalrangeofpercenthydroxylmeasuredis0.7to10.0%.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G17
【国际标准分类号】:83_080_20
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:Superconductivity-Part4:Residualresistanceratiomeasurement-ResidualresistanceratioofNb-Ticompositesuperconductors(IEC61788-4:2011);GermanversionEN61788-4:2011
【原文标准名称】:超导性.第4部分:剩余电阻率的测量.Nb-Ti复合超导体的剩余电阻率
【标准号】:EN61788-4-2011
【标准状态】:现行
【国别】:
【发布日期】:2012-03-01
【实施或试行日期】:2012-03-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Alloys;Ambienttemperatures;Copper;Copperalloys;Copperconductors;Currentmeasurement;Definitions;Electricalengineering;Electricalresistance;Flexuralcreep;Measurement;Measuringtechniques;Measuringuncertainty;Mechanicalproperties;Metrology;Niobium;Precision;Residualresistance;Resistancemeasurement;Resistors;Superconductivity;Superconductors;Testreports;Testing;Titanium;Titaniumalloys
【摘要】:
【中国标准分类号】:K10
【国际标准分类号】:29_050
【页数】:31P;A4
【正文语种】:英语