【英文标准名称】:StandardTestMethodforDynamicSurfaceTensionbytheFast-BubbleTechnique
【原文标准名称】:快速气泡法测定动态表面张力的标准试验方法
【标准号】:ASTMD3825-1990(2005)
【标准状态】:现行
【国别】:
【发布日期】:1990
【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】:D02.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:石油产品;润滑剂;表面张力;试验
【英文主题词】:dynamicsurfacetension;tension(tensile)properties/tests;surfacetension
【摘要】:Whilethistestmethodcanbeappliedtopureliquids,itisespeciallydesignedforusewithmixturesinwhichoneormorecomponentsmigratetothesurface.Dataofthistypeareneededforthedesignofequipmentforprocessingmixedliquids,suchasindistillationtowers.1.1Thistestmethodcoversthedeterminationofthespecificfreeenergyofaliquid-gassurfaceashorttimeafterformationofthesurface.1.2Itisapplicabletoliquidswithvaporpressuresupto30.0kPa(225torr)andkinematicviscositiesupto4.0mm/s(4.0cSt)atthetesttemperature.Higherviscositieshavenotyetbeeninvestigated.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,see7.3,7.4,and7.5.
【中国标准分类号】:Z16
【国际标准分类号】:75_100
【页数】:5P.;A4
【正文语种】: