【英文标准名称】:StandardTestMethodforDeterminingAerobicBiodegradationinSoilofPlasticMaterialsorResidualPlasticMaterialsAfterComposting
【原文标准名称】:测定堆肥处理后的塑料或残留塑料在土壤中有氧生物降解的标准试验方法
【标准号】:ASTMD5988-2003
【标准状态】:现行
【国别】:
【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】:D20.96
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:生物降解能力;土壤;塑料;实验室试验;试验方法;堆肥处理(废弃物)
【英文主题词】:aerobic;biodegradation;degree(ofbiodegradation);mineralization;plastics;soil
【摘要】:Thedegreeandrateofaerobicbiodegradabilityofaplasticmaterialintheenvironmentdeterminestheextenttowhichandtimeperiodoverwhichplasticmaybemineralized.Disposalisbecomingamajorissuewiththeincreasinguseofplastics,andtheresultsofthistestmethodmaypermitanestimationofthedegreeofbiodegradabilityandthetimeperiodoverwhichplasticswillremaininanaerobicsoilenvironment.Thistestmethoddeterminesthedegreeofaerobicbiodegradationbymeasuringevolvedcarbondioxideasafunctionoftimethattheplasticisexposedtosoil.Soilisanextremelyspecies-richsourceofinoculumforevaluationofthebiodegradabilityofplasticsintheenvironment.Whenmaintainedappropriatelywithregardtomoisturecontentandoxygenavailability,thebiologicalactivityisquiteconsiderable,althoughlowerthanotherbiologicallyactiveenvironments,suchasactivatedsewage-sludgeorcompost.Soilisalsotheapplicationtargetforcompostedmaterials,andthereforethebiodegradabilityofsuchmaterialsshouldbeevaluatedinthesoilenvironmentafterthematerialshavebeencomposted.Amixtureofsoilandmaturecompostcontainingcompostedplasticmaterial(asobtainedafterperformingTestMethodD5338)isthereforealsoanappropriatematrixforevaluationofthebiodegradabilityofplastics.1.1Thistestmethodcoversdeterminationofthedegreeandrateofaerobicbiodegradationofsyntheticplasticmaterials(includingformulationadditivesthatmaybebiodegradable)incontactwithsoil,oramixtureofsoilandmaturecompost,underlaboratoryconditions.1.2Thistestmethodisdesignedtoratethebiodegradabilityofplasticmaterialsrelativetoastandardinanaerobicenvironment.1.3Thistestmethodisdesignedtobeapplicabletoallplasticmaterialsthatarenotinhibitorytothebacteriaandfungipresentinsoilandcompost.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.AspecifichazardstatementisgiveninSection8.1.6ThisASTMtestmethodisequivalenttoISO17556:2003.
【中国标准分类号】:G31
【国际标准分类号】:13_030_10
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Paintsandvarnishes-Evaluationofdegradationofcoatings-Designationofquantityandsizeofdefects,andofintensityofuniformchangesinappearance-Part6:Assessmentofdegreeofchalkingbytapemethod(ISO4628-6:2007)EnglishversionofDIN
【原文标准名称】:涂料和清漆.涂层降解的评估.缺陷的数量和大小及外表一致变化饱和度的标识.第6部分:用粘胶带法评估粉化等级
【标准号】:ENISO4628-6-2007
【标准状态】:现行
【国别】:
【发布日期】:2007-11
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:粘胶带法;缺陷的评估;粉化;粉化等级;涂层材料;涂层;比较;比对样品;损伤;缺陷;定义;测定;误差检测;评估;测量;涂料;粘接带;表面缺陷;测试;试验;清漆
【英文主题词】:Adhesivetapemethod;Assessmentofdefects;Chalking;Chalkinggrade;Coatingmaterials;Coatings;Comparison;Comparisonspecimen;Damage;Defects;Definition;Definitions;Determination;Errordetection;Evaluations;Measurement;Paints;Splicingtapes;Surfacedefects;Testing;Tests;Varnishes
【摘要】:
【中国标准分类号】:G51
【国际标准分类号】:87_040
【页数】:11P.;A4
【正文语种】:英语