【英文标准名称】:StandardTestMethodforRheologicalPropertiesofPastePrintingandVehiclesbytheFalling-RodViscometer
【原文标准名称】:使用落棒粘度计测定膏印刷和车辆的流变特性的标准试验方法
【标准号】:ASTMD4040-2010
【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】:D01.56
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:apparentviscosity;falling-rodviscometers;inks;non-Newtonianism;powerlawviscosity;printinginks;shortness;vehicles;viscometers;viscosity;yieldvalue;Calibration--paints/relatedcoatingsanalysisinstrumentation;Fallingrodviscometer;Glaz
【摘要】:Apparentviscosityattherelativelyhighshearrateof2500sx2212;1doesnotcompletelydefinetherheologicalpropertiesofprintinginksbutisusefulinthepracticalcontrolofinkviscosityduringproductionandthespecificationacceptancebetweensupplierandpurchaser.Theslopeofthepowerlawplotisthepreferredmeasureofnon-Newtonianism.Theyieldvalue,whichisobtainedbyextrapolationofhigh-shearmeasurementstoashearrateapproachingzero,doesnotconformtothedefinitionofthetrueyieldstress(see3.1.7).Theyieldvalueandotherlowshearparametersarealsosubjecttoahighdegreeofvariability(seetheprecisiontableinSection17).1.1Thistestmethodcoverstheprocedurefordeterminingthefalling-rodviscosityanddegreeofnon-Newtonianbehaviorofprintinginks,vehicles,andsimilarliquidsthatareessentiallynonvolatileandunreactiveunderordinaryroomconditions.1.2Forprintinginks,whicharetypicallynon-Newtonian,thistestmethodisapplicableintheapparentviscosityrangefromabout10to300Patashearrateof2500sx2212;1.ForNewtonianliquids,theapplicableviscosityrangeisabout10to1000P(1P=0.1Pax00B7;s).1.3Thistestmethodusesafalling-rodviscometerinwhichshearconditionsarealteredbymanuallyaddingweighttotherod.AfullyautomaticinstrumentisdescribedinTestMethodD6606.1.4Thistestmethod,asdoesTestMethodD6606,basescalculationsonthepowerlawmodelofviscosity.ISO12644coversnotonlythepowerlawbutalsotheCassonandBinghammodels.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection8.
【中国标准分类号】:A17
【国际标准分类号】:87_080
【页数】:9P.;A4
【正文语种】:英语