ANSI/ASME B30.12a Addenda-1987 装卸从旋翼机上悬吊的货件.附录
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【英文标准名称】:Handlingloadssuspendedfromrotorcraft;Addenda
【原文标准名称】:装卸从旋翼机上悬吊的货件.附录
【标准号】:ANSI/ASMEB30.12aAddenda-1987
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【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】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:HouseconnectionboxesforundergroundserviceforHRC-fusessize00upto100A500Vandsize1upto250A500V
【原文标准名称】:规格00-100A500V和规格1-250A500高遮断容量熔断器用地下输电用户分线箱
【标准号】:DIN43627-1992
【标准状态】:现行
【国别】:德国
【发布日期】:1992-07
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;户内;分线盒;保险盒;电缆连接件;熔断器底座;用户分线箱;电缆;作标记;尺寸;规范(批准);设计;用户装置;分配网;交接点;低压高遮断容量熔断器;熔断器;低电压
【英文主题词】:
【摘要】:
【中国标准分类号】:K36
【国际标准分类号】:29_120_00
【页数】:3P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforTotalCarbon,InorganicCarbon,andOrganicCarboninWaterbyUltraviolet,PersulfateOxidation,andMembraneConductivityDetection
【原文标准名称】:用紫外线、过硫酸盐氧化物和薄膜导电率检测法测定水中总含碳量、有机碳和无机碳的标准试验方法
【标准号】:ASTMD5904-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:D19.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:分析方法;试验;碳含量;水质
【英文主题词】:carbon;carbon-dioxide;inorganic-carbon;low-temperature-oxidation;membrane-conductivity-detection;organiccarbon;totalcarbon
【摘要】:Thistestmethodisusedfordeterminationofthecarboncontentofwaterfromavarietyofnatural,domestic,andindustrialsources.Initsmostcommonform,thistestmethodisusedtomeasureorganiccarbonasameansofmonitoringorganicpollutantsinhighpurityanddrinkingwater.Thesemeasurementsarealsousedinmonitoringwastetreatmentprocesses.TherelationshipofTOCtootherwaterqualityparameterssuchaschemicaloxygendemand(COD)andtotaloxygendemand(TOD)isdescribedintheliterature.51.1Thistestmethodcoversthedeterminationoftotalcarbon(TC),inorganiccarbon(IC),andtotalorganiccarbon(TOC)inwaterintherangefrom0.5to30mg/Lofcarbon.Higherlevelsmaybedeterminedbysampledilution.Thetestmethodutilizesultraviolet-persulfateoxidationoforganiccarbon,coupledwithaCO2selectivemembranetorecovertheCO2intodeionizedwater.Thechangeinconductivityofthedeionizedwaterismeasuredandrelatedtocarbonconcentrationintheoxidizedsample.Inorganiccarbonisdeterminedinasimilarmannerwithouttherequirementforoxidation.Inbothcases,thesampleisacidifiedtofacilitateCO2recoverythroughthemembrane.TherelationshipbetweentheconductivitymeasurementandcarbonconcentrationisdescribedbyasetofchemometricequationsforthechemicalequilibriumofCO2,HCO3-,H+,andtherelationshipbetweentheionicconcentrationsandtheconductivity.Thechemometricmodelincludesthetemperaturedependenceoftheequilibriumconstantsandthespecificconductances.1.2Thistestmethodhastheadvantageofaveryhighsensitivitydetectorthatallowsverylowdetectionlevelsonrelativelysmallvolumesofsample.Also,useoftwomeasurementchannelsallowsdeterminationofCO2inthesampleindependentlyoforganiccarbon.IsolationoftheconductivitydetectorfromthesamplebytheCO2selectivemembraneresultsinaverystablecalibration,withminimalinterferences.1.3Thistestmethodwasusedsuccessfullywithreagentwaterspikedwithsodiumbicarbonateandvariousorganicmaterials.Itistheuser'sresponsibilitytoensurethevalidityofthistestmethodforwatersofuntestedmatrices.1.4Thistestmethodisapplicableonlytocarbonaceousmatterinthesamplethatcanbeintroducedintothereactionzone.Theinjectoropeningsizegenerallylimitsthemaximumsizeofparticlesthatcanbeintroduced.1.5Inadditiontolaboratoryanalyses,thistestmethodmaybeappliedtoonlinemonitoring.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:7P.;A4
【正文语种】:
