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【英文标准名称】:StandardTestMethodforEvaluatingtheResistanceoftheSurfaceofWetBluetotheGrowthofFungiinanEnvironmentalChamber
【原文标准名称】:评定湿铬鞣革表面在人工环境室中对真菌生长的耐受性的标准试验方法
【标准号】:ASTMD7584-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D31.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:basicchromiumsulfate;moldresistance;wetblue
【摘要】:Theenvironmentalchambermethodisanacceleratedtestfordeterminingtheresistanceofwetbluetothegrowthoffungi,thecausalagentofmold.SeeTestMethodD3273.,Theenvironmentalchambermethodisusefulinestimatingtheperformanceoffungicidesandshouldassistinthepredictionofstoragetimebeforefungalgrowthbegins.Theenvironmentalchambermethodduplicatesthenaturalenvironmentinwhichwetblueisinoculatedwithfungalsporesandsubsequentlydisfiguredordiscoloredbyfungi.Theenvironmentalchambermethodmeasurestheresistanceofthetreatedwetbluetothegerminationofsporesandsubsequentvegetativegrowththatspreadsoverthesurfaceofacomparativelylargewetbluespecimenoveraperiodoffourweeks.Theenvironmentalchambercanbekeptinoculatedwithfungirepresentativeofthosefoundintanneriesbyaddingsamplesofwetbluewithfungalgrowthcurrentlyoperatingtanneries.Controlspecimensofwetbluewithoutfungicidetreatmentcanbeaddedtothechamberperiodicallytoincreaselevelsoffungalgrowthinthechamber.LeachingoffungicidefromthetestspecimenintotheagaroftencausesazoneofinhibitionoffungalgrowthinthePetridishtest,butintheenvironmentalchamberanyleachingoffungicidefromthetestspecimendripsintothewatercontainedinthechamberandthusdoesnotcausethetypesoffalsereadingsobservedinthePetridishtest.1.1Thisenvironmentalchambermethodmeasurestheresistanceofthetreatedwetbluetothegerminationofsporesandsubsequentvegetativegrowthoveraperiodoffourweeks.Thetestmethodisusefulinestimatingtheperformanceoffungicidesandshouldassistinthepredictionofstoragetimeofwetbluebeforefungalgrowthbegins.Theapparatusisdesignedsoitcanbeeasilybuiltorobtainedbyanyinterestedpartyandduplicatethenaturalenvironmentinwhichwetblueisinoculatedwithfungalspores.Sporesthatgerminateonuntreatedortreatedwetbluecanproducefungalgrowth,resultingindisfigurementordiscoloration,orboth,ofthewetblue..1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y46
【国际标准分类号】:59_140_30
【页数】:10P.;A4
【正文语种】:英语