【英文标准名称】:StandardTestMethodforRelativeExtensionalViscosityofAgriculturalSprayTankMixes
【原文标准名称】:农用喷雾箱混合料的相对拉伸粘度的标准试验方法
【标准号】:ASTME2408-2004(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:E35.22
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Agriculturalmaterials/applications;Extensionalviscosity;Viscosity
【摘要】:Extensionalviscosityisameasureoftheresistanceofaliquidtostretchingforces,suchasthoseoccurringduringthedisruptionofliquidfilmsandtheformationofspraysusedinagricultureandotherpurposesincludingpaintingoperationsormetalworking.ThismethodformeasurementofaScreenFactor,givesarelativevalueforextensionalviscosity,whichmaybeused:Tocomparethepotentialfordriftcontrolofdifferentpolymers.Tocomparetherelativeextensionalviscositycomponentofdifferentspraytankmixtures.Todeterminetheextentofbreakdownofpolymersolutionsusedasdriftcontroladditivesduringtherecirculationofthesolutionsthroughpumpsandscreens.TouseasaparameterintheSprayDriftTaskForceModelsfordropletsizeprediction.Itshouldalsobenotedthatmanydriftcontrolpolymersareirreversiblydestroyedduringtherecirculationofspraymixesbypumpingwithhighshearpumpssuchasgearorcentrifugalpumps.Itisadvisabletosubjectthetestmixturetosimilarpumpingregimestosimulatepracticalconditionsbeforecarryingouttheextensionalviscositytest.Measurementsofextensionalviscosityaretheonlypresentlyknownmethodofdeterminingtheextentofthisbreakdownpropertiesofdilutepolymersolutions.Thismethodisintendedtoproducearelativevalueforextensionalviscosity.Thepurposeofthemethodistocomparetheextensionalviscosityproducedbydifferentpolymertypesorconcentrationsofpolymerinspraytankmixes.1.1ThistestmethodcoversthedeterminationoftherelativeextensionalviscosityorScreenFactor(SF)ofdiluteagriculturalspraymixes.1.2Thetestcanbeusedfortankmixescontainingdissolved,emulsifiedordispersedmaterials,ormixtures.1.3Resultsmaybeaffectedbythequalityofthewaterused.Make-upwaterqualityshouldthereforebespecifiedinthepresentationofresults.1.4Propersafetyandhygieneprecautionsmustbetakenwhenworkingwithpesticideformulationstopreventskinoreyecontact,vaporinhalation,andenvironmentalcontamination.Readandfollowallhandlinginstructionsforthespecificformulationandconductthetestinaccordancewithgoodlaboratorypractice.Note18212;Referencestothedevelopmentofextensionalviscosityfromdissolvedpolymers,extensionalviscosityeffectsonthedropletsizedistributionofsprays,andmeasurementsofscreenfactoronrecirculatedspraymixescontainingpolymersareavailable.,1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B91
【国际标准分类号】:17_060
【页数】:4P.;A4
【正文语种】:英语


【英文标准名称】:Compressednaturalgasvehicleoperations;GermanversionEN13423:2000
【原文标准名称】:压缩天然气车辆操作
【标准号】:DINEN13423-2001
【标准状态】:现行
【国别】:德国
【发布日期】:2001-04
【实施或试行日期】:2001-04-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;定义;机械;液化天然气;燃料;汽车修理车间(商业的);驾驶员;压实;事故;容器;车间;安全;道路汽油泵;削刮器;机动车燃料;天然气;运载工具;安全要求;操作;信息;压缩气体;液化气;人员
【英文主题词】:
【摘要】:Thedocumentgivesrecommendationsfortheoperationofvehiclesfuelledwithnaturalgasandoperatingatafuelsystempressurenotexceeding20MPa(200bar)at15?Thedocumentmaybeappliedtohighersystempressures,butdueregardshouldthenbegiventosafetyaspectssuchas,ventilationrates,hazardousarearequirementsandotheraspectsassociatedwiththosehigherpressures.#,,#
【中国标准分类号】:T47
【国际标准分类号】:43_020;43_180;75_200
【页数】:7P;A4
【正文语种】:德语