【英文标准名称】:StandardPracticeforEvaluatingandComparingTransferEfficiencyofSprayAppliedCoatingsUnderGeneralLaboratoryConditions
【原文标准名称】:在一般实验室条件下评定和比较传输效率评价的标准操作规程
【标准号】:ASTMD5327-1997(2007)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:D01.55
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:传输;比较;评定;电气工程
【英文主题词】:generallaboratorymethod;laboratorypractice;spray-appliedcoatings;transferefficiency
【摘要】:Subjecttothelimitationslistedin1.3,thispracticecanbeusedasaresearchtooltooptimizesprayequipmentandpaintformulations,aswellastostudytherelativeeffectontransferefficiencyofchangingoperatingvariables,sprayapplicationequipment,typeofcoatings,etc.1.1Thispracticecoverstheevaluationandcomparisonofthetransferefficiencyofspray-appliedcoatingsundergenerallaboratoryconditions.Transferefficiencyistheratioofpaintsolidsdepositedtothetotalpaintsolidsusedduringtheapplicationprocess,expressedasapercent.Thispracticecanbeusedtostudytheeffectontransferefficiencyofchangingoperatingvariablesandpaintformulations.Keyvariablesthatneedtobecontrolledarelistedin8.13.Note1-Itisimportantthatallprocessorformulationparameters,exceptthatwhichisintentionallybeingchanged,bekeptconsistentfromtesttotest.Ifnotdone,theresultsofthestudyaretobequestioned.1.2ThereproducibilityofthispracticeishighlydependentonthedegreeofcontroloftheparameterslistedinSection8ofthepractice.1.3Limitations-Thislaboratorypracticeindicatesonlythedirectionoftheeffectofoperatingvariablesandliquidpaintformulationsontransferefficiencyunderconditionsofthelaboratorytest:themagnitudeoftheeffectcanbedeterminedonlywithspecificplantexperience.Infact,thenatureofthecriticalparametersthataffecttransferefficiencymakesclearthatitisnotpossibletoextrapolatelaboratoryresults.Note2-ThelaboratorypracticeoutlinedinvolvesgenerallaboratorysprayequipmentandproceduresandisderivedfromTestMethodD5009.ThispracticeandTestMethodD5009arebothderivedfromastudyandreportoftransferefficiencymeasurementsconductedfortheU.S.EnvironmentalProtectionAgency.Forlaboratoriesthathaveaccesstoaconveyorandmassflowmeasurementequipment,asuitable,potentiallymorereproducible,testedmethodisdefinedinTestMethodD5009.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ForspecifichazardstatementsseeSection7,Note8andNote9.
【中国标准分类号】:K04
【国际标准分类号】:29_020
【页数】:4P.;A4
【正文语种】: