BS EN 23923-2-1993 金属粉末.表观密度的测定.第2部分:斯科特(Scott)容积计法
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【英文标准名称】:Metallicpowders-Determinationofapparentdensity-Scottvolumetermethod
【原文标准名称】:金属粉末.表观密度的测定.第2部分:斯科特(Scott)容积计法
【标准号】:BSEN23923-2-1993
【标准状态】:现行
【国别】:英国
【发布日期】:1993-06-15
【实施或试行日期】:1993-06-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:试验设备;体积;试样;试验条件;金属;粒状材料;尺寸;粉末冶金;密度测量
【英文主题词】:
【摘要】:ThispartofISO3923specifiestheScottvolumetermethodforthedeterminationoftheapparentdensityofmetallicpowders.Itisapplicabletopowdersthatwillnotflowfreelythrougha5mmorifice(seeISO3923/1).Part3ofthisInternationalStandardspecifiestheoscillatingfunnelmethodforthedeterminationofapparentdensityofsuchpowders,andthisispreferredsinceitgivesbetterpreci-sion,butitcannotbeusedincaseswherethepowdermaychangeitspropertiesduetothevibrationactionappliedtothepowderduringtesting.
【中国标准分类号】:H70
【国际标准分类号】:77_160
【页数】:16P;A4
【正文语种】:英语
【英文标准名称】:Determinationoftheultimateaerobicbiodegradabilityofplasticmaterialsinanaqueousmedium-Methodbyanalysisofevolvedcarbondioxide
【原文标准名称】:水介质中塑料材料富氧菌生物降解性的测定二氧化碳增量分析法
【标准号】:ISO14852-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-05
【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/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:好气菌;有机化合物;生物降解能力;试验;塑料;塑料制品
【英文主题词】:Aerobicbacteria;Biodegradability;Carbondioxide;Definitions;Measurement;Methods;Organiccompounds;Plastics;Plasticsproducts;Pollutioncontrol;Testing
【摘要】:ThisInternationalStandardspecifiesamethod,bymeasuringtheamountofcarbondioxideevolved,forthedeterminationofthedegreeofaerobicbiodegradabilityofplasticmaterials,includingthosecontainingformulationadditives.Thetestmaterialisexposedinasyntheticmediumunderlaboratoryconditionstoaninoculumfromactivatedsludge,compostorsoil.Ifanunadaptedactivatedsludgeisusedastheinoculum,thetestsimulatesthebiodegradationprocesseswhichoccurinanaturalaqueousenvironment;ifamixedorpre-exposedinoculumisused,themethodcanbeusedtoinvestigatethepotentialbiodegradabilityofatestmaterial.TheconditionsusedinthisInternationalStandarddonotnecessarilycorrespondtotheoptimumconditionsallowingmaximumbiodegradationtooccur,butthestandardisdesignedtodeterminethepotentialbiodegradabilityofplasticmaterialsorgiveanindicationoftheirbiodegradabilityinnaturalenvironments.Themethodenablestheassessmentofthebiodegradabilitytobeimprovedbycalculatingacarbonbalance(optional,seeannexC).Themethodappliestothefollowingmaterials:—Naturaland/orsyntheticpolymers,copolymersormixturesthereof.—Plasticmaterialswhichcontainadditivessuchasplasticizers,colorantsorothercompounds.—Water-solublepolymers.—Materialswhich,underthetestconditions,donotinhibitthemicroorganismspresentintheinoculum.Inhibitoryeffectscanbedeterminedusinganinhibitioncontrolorbyanotherappropriatemethod(seee.g.ISO8192).Ifthetestmaterialisinhibitorytotheinoculum,alowertestconcentration,anotherinoculumorapre-exposedinoculumcanbeused.
【中国标准分类号】:Z04
【国际标准分类号】:83_080_01
【页数】:18P;A4
【正文语种】:英语
【英文标准名称】:Bibliographicreferencesandsourceidentifiersforterminologywork
【原文标准名称】:术语工作用参考文献和源标识符
【标准号】:BSISO12615-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-12-22
【实施或试行日期】:2004-12-22
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:表;图书馆学与情报学;文献目录;参考文献;文献描述;定义;自动计数系统;文献;文献工作;术语
【英文主题词】:Bibliographicreferences;Bibliographies;Definition;Definitions;Documentdescription;Documentations;Documents;Libraryandinformationscience;Lists;Registersystems;Terminology
【摘要】:ThisInternationalStandardappliestotherecording,storingandexchangeofinformationonbibliographicsourcesforterminologicalworkandterminography.Itspecifiesthedataelementstobeincludedinbibliographicreferencesforterminologywork.Thesereferencescanbeusedasdatacategoriesincomputerapplicationsinterminologyorinpresentingbibliographiesandlistsofreferencesaccompanyingothertextualmatter,andcitationsinjournalarticles.ThisInternationalStandarddoesnotapplytobibliographicdescriptionsthatrecordandidentifydocumentsandareusedbylibrarians,bibliographersandindexers.ThisInternationalStandardalsodescribessourceidentifiersfordifferenttypesofbibliographicalreferencesandtheiruse.Itindicateshowthedataelementsfromthebibliographicreferencecanbereflectedinasourceidentifier,andhowitsconstituentpartscanbeassembledtoprovideauniqueidentifier.ThisInternationalStandardwillfacilitatethefollowing:—identifying,tracingandvalidatingterminologicaldataandotherlanguageresources;—cross-referencingtodocumentscontainingterminologicaldata;—dataflowmanagementinnetworkingandothercooperativeworkinterminologydocumentationandterminography;—exchangeofterminologicaldata;—preparationoftechnicaldocuments;—carryingoutofindividualprojectsofterminologyandterminography.ThisInternationalStandarddoesnottakeintoaccountneedsforasimplerapproachthatcouldbefulfilledbyISO15836.
【中国标准分类号】:A22
【国际标准分类号】:01_020
【页数】:36P;A4
【正文语种】:英语
