作者:标准资料网 时间:2024-05-03 21:53:57   浏览:8033   来源:标准资料网

【英文标准名称】:StandardPracticeforEvaluatingBiofoulingResistanceandPhysicalPerformanceofMarineCoatingSystems
【原文标准名称】:评估船体涂覆系统的耐生物附着性和物理特性的标准规程
【标准号】:ASTMD6990-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D01.45
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:耐力;评定;易腐烂的;涂覆系统;海;性能;物理的
【英文主题词】:antifoulingperformance;biofoulingorganisms;evaluation;filmphysicalperformance;marinecoatingsystem
【摘要】:Thispracticeisdesignedtoprovideguidancetoapanelinspectorforquantitativeandconsistentevaluationofcoatingperformancefromtestpanelscoatedwithmarineantifoulingcoatingsystems.Thepracticeassessesperformanceofcoatingsystemsbasedonbothantifoulingandphysicalproperties.Theuseriscautionedthattheresultsarerepresentativeforthespecificregionandtimeofyearinwhichthespecimensareimmersed.Itshallbenotedthatinterpretationofresultswilldependonthegeographicallocationwherethetestisconducted,whetherthecoatedspecimensareexposedeithertotallyorpartiallyimmersed,understaticordynamicconditions,andpositionandorientation.Simultaneoustestingofaprovenstandardantifoulingcoatingsystem(knowntominimizefoulingaccumulation,forexample,containingbiocideoractiveagent(s)topreventfoulingsettlement/growth)inthespecificmarineenvironmentshallbeincludedasareferencetoassistininterpretationofresults.Inaddition,anegativecontrol(inertsurfacesusceptibletoheavyfouling)shallbeincludedonaregularbasis.Fortheexposuretobevalid,thesurfaceofthenegativecontrolshouldshowheavyfoulingrelativetothestandardsystem(s).Marinecoatingsystemsthatproducepositiveresultsrelevanttothestandardsystem(s)showpotentialforuseinprotectingunderwatermarinestructures.Theformatcanbeutilizedindependentofexposureprotocolandcoatingtype,andprovidestheenduserwithaconsistentpracticeandformatforreportingofperformancerating.1.1Thismethodestablishesapracticeforevaluatingdegreeofbiofoulingsettlementonandphysicalperformanceofmarinecoatingsystemswhenpanelscoatedwithsuchcoatingsystemsaresubjectedtoimmersionconditionsinamarineenvironment.GuidanceforpreparationorexposureandhandlingoftestspecimenscanbefoundinrelatedASTMstandardsasnotedbelow(seeSection).1.2Thispracticeandrelatedexposuremethodologiesaredesignedastoolsfortherelativeassessmentofcoatingperformance,andinnowayaretobeusedasanabsoluteindicatoroflong-termperformanceunderallconditionsandinallenvironments.Therecanbehighvariabilityamongandwithinexposuresiteswithrespecttowaterqualityandpopulationorspeciesoffoulingorganisms,andcoatingperformancemayvarywiththeseandotherproperties.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.AspecifichazardstatementisgiveninSection.
【中国标准分类号】:U04
【国际标准分类号】:87_040
【页数】:12P.;A4
【正文语种】: