ASTM D1735-2004 用水雾仪进行涂层耐水性试验的标准规程

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【英文标准名称】:StandardPracticeforTestingWaterResistanceofCoatingsUsingWaterFogApparatus
【原文标准名称】:用水雾仪进行涂层耐水性试验的标准规程
【标准号】:ASTMD1735-2004
【标准状态】:现行
【国别】:
【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(ASTM)
【起草单位】:D01.27
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:覆层;试验;工艺;表面处理;耐水解
【英文主题词】:adhesion;blistering;resistance-water;rust;waterfog
【摘要】:Watercancausethedegradationofcoatings,soknowledgeofhowacoatingresistswaterishelpfulinpredictingitsservicelife.Failureinwaterfogtestsmaybecausedbyanumberoffactors,includingadeficiencyinthecoatingitself,contaminationofthesubstrate,orinadequatesurfacepreparation.Thetestisthereforeusefulforevaluatingcoatingsaloneorcompletecoatingsystems.Waterfogtestsareusedforresearchanddevelopmentofcoatingsandsubstratetreatments,specificationacceptance,andqualitycontrolinmanufacturing.Thesetestsusuallyresultinapassorfaildetermination,butthedegreeoffailuremayalsobemeasured.Acoatingsystemisconsideredtopassifthereisnoevidenceofwater-relatedfailureafteraspecifiedperiodoftime.Resultsobtainedfromtheuseofwaterfogtestsinaccordancewiththispracticeshouldnotberepresentedasbeingequivalenttoaperiodofexposuretowaterinthenaturalenvironment,untilthedegreeofquantitativecorrelationhasbeenestablishedforthecoatingorcoatingsystem.ThetestapparatusissimilartothatusedinPracticeB117,andtheconversionoftheapparatusfromsaltspraytowaterfogtestingisfeasible.Careshouldbetakentoremovealltracesofthesaltfromthecabinetandreservoirwhenconvertingfromsaltspraytowaterfogtesting.1.1Thispracticecoversthebasicprinciplesandoperatingproceduresfortestingwaterresistanceofcoatingsinanapparatussimilartothatusedforsaltspraytesting.1.2Thispracticeislimitedtothemethodsofobtaining,measuring,andcontrollingtheconditionsandproceduresofwaterfogtests.Itdoesnotspecifyspecimenpreparation,specifictestconditions,orevaluationofresults.Note18212;AlternativepracticesfortestingthewaterresistanceofcoatingsincludePracticesD870,D2247,andD4585.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityofwhoeverusesthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:25_220_20
【页数】:3P.;A4
【正文语种】: