ASTM D5590-2000(2005) 用加速的四周琼脂平面培养分析测定漆膜及有关涂层耐霉菌损坏的标准试验方法

作者:标准资料网 时间:2024-05-21 23:05:22  浏览:8783   来源:标准资料网

【英文标准名称】:StandardTestMethodforDeterminingtheResistanceofPaintFilmsandRelatedCoatingstoFungalDefacementbyAcceleratedFour-WeekAgarPlateAssay
【原文标准名称】:用加速的四周琼脂平面培养分析测定漆膜及有关涂层耐霉菌损坏的标准试验方法
【标准号】:ASTMD5590-2000(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:agarplateassay;fungi;fungalresistance;mildew;mold
【摘要】:Defacementofpaintandcoatingfilmsbyfungalgrowth(mold,mildew)isacommonphenomenon,anddefacementbyalgalgrowthcanalsooccurundercertainconditions.Itisgenerallyknownthatdifferencesintheenvironment,lighting,temperature,humidity,substratepH,andotherfactorsinadditiontothecoatingcompositionaffectthesusceptibilityofagivenpaintedsurface.Thistestmethodattemptstoprovideameanstocomparativelyevaluatedifferentcoatingformulationsfortheirrelativeperformanceunderagivensetofconditions.Itdoesnotimplythatacoatingthatresistsgrowthundertheseconditionswillnecessarilyresistgrowthintheactualapplication.Note18212;Itishopedthatarankingofrelativeperformancewouldbesimilartothatrankedfromoutdoorexposures.However,thistestmethodshouldnotbeusedasareplacementforexteriorexposure(thatis,PracticeD3456)sincemanyotherfactors,onlyafewofwhicharelistedwillaffectthoseresults.Note28212;Severalcompanieshavereportedreasonablecorrelationofresultsfromthistestwithactualusewhentestingfilm-forming,pigmentedcoatings.Round-robintestingofthistestmethodversusexteriorexposureisplanned.Familiaritywithmicrobiologicaltechniquesisrequired.Thistestmethodshouldnotbeusedbypersonswithoutatleastbasicmicrobiologicaltraining.1.1Thistestmethodcoversanacceleratedmethodfordeterminingtherelativeresistanceoftwoormorepaintsorcoatingfilmstofungalgrowth.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:87_040
【页数】:4P.;A4
【正文语种】: