ASTM D5478-2009 落针粘度计测定材料粘度的标准试验方法

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【英文标准名称】:StandardTestMethodsforViscosityofMaterialsbyaFallingNeedleViscometer
【原文标准名称】:落针粘度计测定材料粘度的标准试验方法
【标准号】:ASTMD5478-2009
【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】:D01.24
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:fallingneedleviscometer;Newtonianfluid;non-Newtonianfluid;rheologicalproperty;rheometer;viscometer;viscosity;yieldstress;Viscometers--fallingneedle;Viscosity--paints/relatedcoatings/materials;Fallingneedleviscometer;Newtonianfluids;
【摘要】:Thesetestmethodsareapplicableformeasuringtherheologicalpropertiesofvarnishesandpaints.Inparticular,thelowtomoderateshearratemeasurementsprovideinformationrelatedtosagresistance,leveling,etc.1.1ThesetestmethodscoverthemeasurementoftheviscosityofNewtonianandnon-Newtonianliquids.Thesetestmethodsareapplicabletoliquidshavingviscositiesintherangefrom5x00D7;10x2212;4to103Pax00B7;s(0.5to106cP).Theshearraterangeisdependentupontheneedleusedandviscosityoftheliquidandmayvaryfrom10x2212;4to103sx2212;1.1.2Theyieldstressofliquidshavingthispropertymayalsobedetermined.1.3ThesetestmethodsconsistofdeterminingliquidviscositiesofNewtonianandnon-Newtonianfluids(clearoropaque)bymeasuringthesteady-state(constant)orterminalvelocitiesofcylindricalneedlesastheyfallthroughthetestliquidundertheinfluenceofgravity.Yieldstressesofnon-Newtonianliquidsmaybemeasuredusingthesameprocedure.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N51
【国际标准分类号】:17_060
【页数】:5P.;A4
【正文语种】:英语