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【英文标准名称】:StandardPracticeforDeterminingbyExteriorExposureTeststheSusceptibilityofPaintFilmstoMicrobiologicalAttack
【原文标准名称】:室外暴露试验测定漆膜对微生物侵蚀敏感性的标准作法
【标准号】:ASTMD3456-1986(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1986
【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】:D01.28
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:exposure;exterior;microbiologicalpaintfilms;Specimenpreparation(fortesting)--paints/relatedcoatings;Color--paints/relatedcoatings/materials;Microbiologicalexamination--paints/relatedcoatings;Biodeterioration;Exteriorcoatings;Exteriorexp
【摘要】:Thegrowthoffungiandalgaeinandonthesurfaceofpaintfilmsrepresentsamajorcauseofdiscolorationordisfigurementofpaintedsurfaces.Thispracticecoversthepreparationofcoatingsfortesting,theirapplicationonsubstrates,andthearrangementofthecoatedpanelsonexteriortestfencestodeterminethedegreeofmicrobiologicalattackthatmayoccuronthesurfaceofthecoatingsoveraperiodoftime.Thispracticeisintendedtoprovideguidelinesfor,andadiscussionof,thevariousfactorscriticalinselectionofexteriorcoatingsresistanttodiscolorationordisfigurementbyalgaeandfungi.1.1Thispracticeprovidesguidelinesfordeterminingthesusceptibilityofpaintfilmstomicrobiologicalattackonexteriorexposure.Whileitisrecognizedthatvariousorganismsmayoccuronanexposedcoating,thespecifictypesoforganismsaremainlyofacademicinterest.Thedegreetowhichmicrobiologicaldiscolorationoccursistheprimaryconcern.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G50
【国际标准分类号】:87_040
【页数】:4P.;A4
【正文语种】:英语