ASTM D6530-2000(2006) 冷却塔水中总活性生物体的标准试验方法
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【英文标准名称】:StandardTestMethodforTotalActiveBiomassinCoolingTowerWaters(KoolKountAssay;KKA)
【原文标准名称】:冷却塔水中总活性生物体的标准试验方法
【标准号】:ASTMD6530-2000(2006)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D19.24
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:colorimetricbioassay;coolingtowerwater;triphenyltetrazoliumchloride;viableactivebiomass
【摘要】:Thistestmethodisusefulforrapiddeterminationofviableactivebiomassconcentrationsincoolingtowerwaters.Theefficiencyofcoolingtowersisdirectlyaffectedbytheconcentrationofbiomassinthecoolingtowerwaters.Asbiomassconcentrationsincrease,biofilmformationoccursresultinginadecreaseintheefficiencyofheatexchangeinthetower.Currenttestsformonitoringthebiomassconcentrationincoolingtowersrequireatleast36hforgrowthofthemicroorganismsonasolidagarsurfaceforcounting.Replicationofmicroorganismsoverthe36-hperiodbeforeresultsareavailablecreatesanaqueousenvironmentwhichisnolongerrepresentedbythedatagenerated.Timelytestresultscanassistinminimizingbiocideadditiontocontrolbiomassconcentrations.KoolKountprovidesdatawithinhourstoallowformoreprecisecontrolofactivebiomassconcentrationsinthewaters.1.1Thistestmethodcoversthedeterminationofviableactivebiomassincoolingtowerwaterintherangefrom102to108cfu/mL(1).Itisasemiquantitativetestmethod.1.2Thistestmethodwasusedsuccessfullywithreagentwater,physiologicsaline,andcoolingtowerwaters.Itistheuser''sresponsibilitytoensurethevalidityofthistestmethodforwatersofuntestedmatrices.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection.
【英文标准名称】:StandardTestMethodforEffectofAirSupplyonSmokeDensityinFlueGasesFromBurningDistillateFuels
【原文标准名称】:空气供给对燃料馏分燃烧产生的烟道气中烟密度影响的标准试验方法
【标准号】:ASTMD2157-1994(2003)
【标准状态】:现行
【国别】:
【发布日期】:1994
【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】:D02.E0.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:蒸馏;含量测定;通气;试验;石油产品;润滑剂;密度;含量;烟
【英文主题词】:heatingoil;kerosine;smokedensity
【摘要】:Thistestmethodrelatesefficiencyofoperationofdomesticheatingequipmenttocleanburning.Reducingcombustionairinaburnergivesmoreefficientoperation.Theextenttowhichcombustionaircanbereducedislimitedbytheonsetofunacceptablesmokeproduction.Bydelineatingtherelationbetweensmokedensityandairsupply,thistestmethod(togetherwithnetstacktemperaturedata)definesthemaximumefficiencyforagiveninstallationatanyacceptablesmokelevel.Forcertaintypesofequipment,suchastherotarywall-flameburner,toomuchexcessairwillcausesmokeaswellastoolittle.Forthesecases,thepointofminimumexcessairattheacceptablesmokelevelindicatestheoptimumefficiency.Theoperatingtemperaturesoftheequipmentwillaffectthesetestresults.Therelationofexcessairtosmokedensityisthussusceptibletosomechangeatdifferentpointsinanoperatingcycle.Inpractice,anadequatecompromiseispossiblebyoperatingtheburnerfor15minbeforeanyreadingsarerecordedandthenobtainingthetestdatawithinasucceeding25-minperiod.Underlaboratoryconditions,CO2readingsarereproducibletox00B1;0.3%andsmokereadingsarereproducibletox00B1;x00BD;smokespotnumber.1.1Thistestmethodcoverstheevaluationoftheperformanceofdistillatefuelsfromthestandpointofclean,efficientburning.ItisintendedprimarilyforusewithhomeheatingequipmentburningNo.1orNo.2fueloils.Itcanbeusedeitherinthelaboratoryorinthefieldtocomparefuelsusingagivenheatingunitortocomparetheperformanceofheatingunitsusingagivenfuel.1.2Thevaluesininch-poundunitsaretoberegardedasthestandard.Thevaluesinparenthesesareprovidedforinformationonly.Arbitraryandrelativeunitsarealsoused.Note18212;Thistestmethodappliesonlytopressureatomizingandrotary-typeburners.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:3P.;A4
【正文语种】:
【英文标准名称】:Informationtechnology-Codingofaudio-visualobjects-MP4fileformat
【原文标准名称】:信息技术.音视对象的编码.MP4文件格式
【标准号】:BSISO/IEC14496-14-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-02-10
【实施或试行日期】:2004-02-10
【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】:数据处理;MPEG;尺寸;编码;文件结构;视频信号;声信号;编码(数据转换);多媒体;信息技术;代码表示;图像处理;信息交换;互动;功能;图形数据处理;数据格式;定义;数据交换
【英文主题词】:
【摘要】:ThisInternationalStandarddefinestheMP4fileformat,asderivedfromtheISOBaseMediaFileformat.
【中国标准分类号】:L81
【国际标准分类号】:35_040
【页数】:20P;A4
【正文语种】:英语