DIN 962-1975 螺栓和螺母.图纸说明.形式和结构

上一篇: DIN 2999 Bb.6-1975 管与管配件用惠氏管螺纹.圆锥形螺纹校对塞规尺寸
下一篇: DIN 898-1975 螺钉和螺母的装配工具.概述.概念.名称

【英文标准名称】:TerrestrialTrunkedRadio(TETRA)-VoiceplusDate(V+D)-Part12:Supplementaryservicesstage3-Sup-part4:CallForwarding(CF)(EndorsementoftheEnglishversionEN300392-12-4V1.2.1(2010-07)asGermanstandard)
【原文标准名称】:地面集群无线电(TETRA)-声音加数据(V+D)-第12部分:补充业务阶段3.第4字部分:电话转接(CF)(英文版本EN300392-12-4V1.2.1(2010-07)的核准本作为德国标准)
【标准号】:DINEN300392-12-4-2011
【标准状态】:作废
【国别】:德国
【发布日期】:2011-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:呼叫;数据连接系统;数据传送;连接件;连接;无线电器材;无线电设备;规范(验收);语音传输;语言传输系统;补充业务;电讯;电信;远程通信;通信;电信;陆地的;TETRA;泛欧中继无线电;无线通信业务
【英文主题词】:Callforwardings;Calls;Datalinksystem;Datatransfer;Joints;Radioequipment;Specification(approval);Speechtransmission;Speechtransmissionsystems;Supplementaryservices;Telecommunication;Telecommunications;Terrestrial;TETRA;Transeuropeantrunkedradio;Wirelesscommunicationservices
【摘要】:
【中国标准分类号】:M36
【国际标准分类号】:33_070_10
【页数】:2P;A4
【正文语种】:德语


【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】: