【英文标准名称】:StandardTestMethodforTorque-TensionRelationshipofAdhesivesUsedonThreadedFasteners(Lubricity)
【原文标准名称】:螺纹紧固件用胶粘剂的转矩拉力的标准试验方法
【标准号】:ASTMD5648-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:G38
【国际标准分类号】:83_180;21_060_01
【页数】:2P;A4
【正文语种】:英语


【英文标准名称】:Waterquality-Evaluationofultimateaerobicbiodegradabilityoforganiccompoundsinaqueousmedium-Methodbyanalysisofinorganiccarboninsealedvessels(COheadspacetest)
【原文标准名称】:水质水介质中有机化合物最终有氧生物降解能力的评价密封容器中无机碳分析法(CO2顶空试验)
【标准号】:ISO14593-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC147
【标准类型】:()
【标准水平】:()
【中文主题词】:水;微生物;测量;测定;测量技术;试验;试验;定义;水质;生物降解能力;降解能力;好氧菌;质量
【英文主题词】:Aerobicbacteria;Biodegradability;Chemicalanalysisandtesting;Definitions;Degradability;Determination;Head-spaceanalysis;Measurement;Measuringtechniques;Microorganisms;Quality;Testing;Water;Wateranalysis;Waterpollution;Waterpractice;Waterquality;Watertesting
【摘要】:ThisInternationalStandardspecifiesamethod,byanalysisofinorganiccarbon,fortheevaluationinanaqueousmediumoftheultimateaerobicbiodegradabilityoforganicsubstancesatagivenconcentrationofmicroorganisms.ThisInternationalStandardisapplicabletoorganiccompoundswhichare:a)water-solubleunderthetestconditions;b)poorlywater-solubleunderthetestconditions,inwhichcasespecialmeasuresmaybenecessarytoachieveagooddispersionofthecompound(seeISO10634);c)volatile;d)notinhibitorytothetestmicroorganismsattheconcentrationchosenforthetest.Inthistest,biogenicallyproducedinorganiccarbonismeasuredinsituinthetestvesselsinsuchamannerthattheratemeasurednearlyequalstherateofmicrobialproduction.NOTE1TheconditionsdescribedinthisInternationalStandarddonotalwayscorrespondtotheoptimalconditionsforallowingthemaximumdegreeofbiodegradationtooccur.ForalternativebiodegradationmethodsseeISO15462.NOTE2Withhighlyvolatilesubstances,lossestothegaseousphasecanbeminimizedbyreducingthevolumeoftheheadspace.However,thereshouldbesufficientoxygeninthetestsystemtopreventbiodegradationbeingoxygen-limited.NOTE3Thepresenceofaninhibitoryeffectcanbedeterminedasspecifiedin8.3,orbyusinganyothermethodfordeterminingtheinhibitoryeffectofasubstanceonbacteria(see,forexample,ISO8192).
【中国标准分类号】:Z16;C51
【国际标准分类号】:13_060_70
【页数】:15P;A4
【正文语种】:英语