【英文标准名称】:StandardPracticeforEvaluatingMicrobialSusceptibilityofNonmetallicMaterialsbyLaboratorySoilBurial
【原文标准名称】:用实验室土壤埋藏法评估微生物对非金属材料灵敏度的标准惯例
【标准号】:ASTMG160-2003(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:G03.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:biodegradeable;biologicaldeterioration;defacement;disfigurement;fungalresistance;fungi;laboratorysoilculture;microbialsusceptibility;microbiologicaldeterioration;mildew;mixedmicrobialinnoculum;moldgrowth;soilenvironment;Laboratorys
【摘要】:Theseresultsmaybeusedtocomparethesusceptibilityofmaterialswhenexposedtothistestprocedure.Microbiologicalsusceptibilitymaybereflectedbyanumberofchangesincludingstaining,weightloss,orreductionintensileorflexuralstrength.Thispracticemaybeconsideredaninoculationwithamixedcultureoffungiandbacteria.1.1Thispracticeislimitedtothemethodofconductinganevaluationofanonmetallicmaterial''smicrobiologicalsusceptibilitywhenincontactwiththenaturalenvironmentofthesoil.Thispracticeisintendedforuseonsolidmaterialtestspecimensthatarenolargerthanapproximately2cm(x00BE;in.)thickand100cm2(20in.2)oronfilmformingmaterialssuchascoatingswhichmaybetestedintheformoffilmsatleast50by50mm(2by2in.)insize.Thispracticemaybeappliedtoarticlesthatdonotspendthemajorityoftheirservicelifeinsoil.1.2Awidevarietyofpropertiesmaybeaffectedbymicrobialattackdependingonmaterialoritemcharacteristics.Standardmethods(whereavailable)shouldbeusedforeachdifferentpropertytobeevaluated.Thispracticedoesnotattempttoenumerateallofthepossiblepropertiesofinterestnorspecifythemostappropriatetestforthoseproperties.Testmethodsmust,however,beappropriatetothematerialbeingtested.1.3Itisrecommendedthatthispracticebecombinedwithappropriateenvironmentalexposures(forexample,sunlightsimulatingweatheringdevices,thehydrolyticeffectsofextendedaqueouscontact,orextraneousnutrients)orfabricationintoarticles(forexample,adhesivebondingofseams)whichmaypromotemicrobiologicalsusceptibilityduringtheservicelifeofthematerial.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareprovidedforinformationpurposesonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29;A21
【国际标准分类号】:19_040
【页数】:3P.;A4
【正文语种】:英语