ASTM D6703-2007 自动HEITHAUS滴定分析法用标准试验方法
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【英文标准名称】:StandardTestMethodforAutomatedHeithausTitrimetry
【原文标准名称】:自动HEITHAUS滴定分析法用标准试验方法
【标准号】:ASTMD6703-2007
【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】:D04.47
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:地沥青;自动化;质量(物质);体积测量;计量学;试验方法;测试;滴定法;容量分析
【英文主题词】:sphalt;bitumen;coke;colloidalstability;compatibility;heavyoilresidua;Asphalts;Colloidalstability;Compatibility;Heavyoilresidua;Heithaustitrimetry
【摘要】:Thistestmethodisintendedprimarilyasalaboratorydiagnostictoolforestimatingthecolloidalstabilityofasphalt,asphaltcrossblends,agedasphalt,pyrolyzedasphalt,andheavyoilresiduum.Historically,asphaltandheavyoilresiduahavebeenmodeledascolloidalsuspensions(8,9)inwhichapolar,associatedasphaltenemoiety(thedispersedphase)issuspendedinamaltenesolventmoiety(thedispersingmedium)(refertotestmethodsD3279,D4124,andD5546forfurtherdefinitionofasphaltfractionmaterials).Theextenttowhichthesetwomoietiesremaininagivenstateofpeptizationisameasureofthecompatibilityofthesuspension.Compatibilityinfluencesimportantphysicalpropertiesofthesematerials,includingrheologicalproperties,forexample,phaseangleandviscosity(10,11).Compatibilityalsoinfluencescokeformationinrefiningprocesses(4).Thistestmethodandothersimilartestmethods(7,12-15),alongwiththeclassicalHeithaustest(1,2),measurestheoverallcompatibilityofacolloidalsystembydeterminingadesignatedparameterreferredtoasthestateofpeptization,P.ThevalueofPcommonlyvariesbetween2.5and10forunmodifiedorneatasphalts.MaterialscalculatedtohavelowvaluesofParedesignatedasincompatible,whereasmaterialscalculatedtohavehighPvaluesaredesignatedascompatible.ValuesofPmaybecalculatedasafunctionoftwootherdesignatedparametersthatrelatetothepeptizabilityoftheasphaltenemoiety(theasphaltenepeptizabilityparameter,pa)andthesolventpowerofthemaltenemoiety(themaltenepeptizingpowerparameter,po).ValuesofpaandpoarecalculatedasfunctionsofthequantitiesCminandFRmax,thevaluesofwhichareobtainedfromthreeexperimentalvariables,theweightofresiduumorasphalt(Wa),thevolumeofsolvent(VS),andthevolumeoftitrantaddeduptotheflocculationpoint(VT).1.1ThistestmethoddescribesaprocedureforquantifyingthreeHeithauscompatibilityparameters(1,2)thatestimatethecolloidalstabilityofasphaltsandasphaltcrossblends(1,2),agedasphalts(3),andpyrolyzedheavyoilresiduaandasphalt(4)usingautomatedHeithaustitrimetryasastabilitydiagnostictool.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:17_060
【页数】:9P.;A4
【正文语种】:
【原文标准名称】:自动HEITHAUS滴定分析法用标准试验方法
【标准号】:ASTMD6703-2007
【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】:D04.47
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:地沥青;自动化;质量(物质);体积测量;计量学;试验方法;测试;滴定法;容量分析
【英文主题词】:sphalt;bitumen;coke;colloidalstability;compatibility;heavyoilresidua;Asphalts;Colloidalstability;Compatibility;Heavyoilresidua;Heithaustitrimetry
【摘要】:Thistestmethodisintendedprimarilyasalaboratorydiagnostictoolforestimatingthecolloidalstabilityofasphalt,asphaltcrossblends,agedasphalt,pyrolyzedasphalt,andheavyoilresiduum.Historically,asphaltandheavyoilresiduahavebeenmodeledascolloidalsuspensions(8,9)inwhichapolar,associatedasphaltenemoiety(thedispersedphase)issuspendedinamaltenesolventmoiety(thedispersingmedium)(refertotestmethodsD3279,D4124,andD5546forfurtherdefinitionofasphaltfractionmaterials).Theextenttowhichthesetwomoietiesremaininagivenstateofpeptizationisameasureofthecompatibilityofthesuspension.Compatibilityinfluencesimportantphysicalpropertiesofthesematerials,includingrheologicalproperties,forexample,phaseangleandviscosity(10,11).Compatibilityalsoinfluencescokeformationinrefiningprocesses(4).Thistestmethodandothersimilartestmethods(7,12-15),alongwiththeclassicalHeithaustest(1,2),measurestheoverallcompatibilityofacolloidalsystembydeterminingadesignatedparameterreferredtoasthestateofpeptization,P.ThevalueofPcommonlyvariesbetween2.5and10forunmodifiedorneatasphalts.MaterialscalculatedtohavelowvaluesofParedesignatedasincompatible,whereasmaterialscalculatedtohavehighPvaluesaredesignatedascompatible.ValuesofPmaybecalculatedasafunctionoftwootherdesignatedparametersthatrelatetothepeptizabilityoftheasphaltenemoiety(theasphaltenepeptizabilityparameter,pa)andthesolventpowerofthemaltenemoiety(themaltenepeptizingpowerparameter,po).ValuesofpaandpoarecalculatedasfunctionsofthequantitiesCminandFRmax,thevaluesofwhichareobtainedfromthreeexperimentalvariables,theweightofresiduumorasphalt(Wa),thevolumeofsolvent(VS),andthevolumeoftitrantaddeduptotheflocculationpoint(VT).1.1ThistestmethoddescribesaprocedureforquantifyingthreeHeithauscompatibilityparameters(1,2)thatestimatethecolloidalstabilityofasphaltsandasphaltcrossblends(1,2),agedasphalts(3),andpyrolyzedheavyoilresiduaandasphalt(4)usingautomatedHeithaustitrimetryasastabilitydiagnostictool.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:17_060
【页数】:9P.;A4
【正文语种】:
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