ANSI/ICC 600-2008 疾风区域中住宅建筑用标准

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【英文标准名称】:StandardTestMethodforOn-LineDeterminationofAnionsandCarbonDioxideinHighPurityWaterbyCationExchangeandDegassedCationConductivity
【原文标准名称】:用阳离子交换和脱气阳离子导电性在线测定高纯度水中阴离子和二氧化碳的标准试验方法
【标准号】:ASTMD4519-1994(2005)
【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】:D19.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:含量测定;试验;电导性;二氧化碳;纯度;监督(认可);水
【英文主题词】:anionelectricalconductivity;carbondioxide;cationconductivity;degassedcationconductivity;electricalconductivity;highpuritywater;reboiledconductivity
【摘要】:Thistestmethodcanbeausefuldiagnostictoolinmeasuringtheimpuritiesanddetectingtheirsourcesinhighpuritywater,thesteamcondensateofhighpressurepowerplants,andintheprocesswaterofcertainindustriesrequiringwaterofthehighestpurityattainable.Themeasurementofsuchimpuritiesismostimportanttotheseindustriessinceplantoutagesorproductcontaminationcanresultfromeventssuchascondenserleakage.Also,waterqualitydeviationscanoccurfromcondensatepolishingandmakeupwaterequipmentmalfunctions.Thecontinuousmeasurementandtrendsprovidedbythistestmethodareofparticularinterestandcanindicatetheneedforcorrectionsinwatertreatingoroperatingproceduresandequipment.Theequipmentforthistestmethodcanbeconsideredmoreruggedandadaptabletoinstallationunderplantoperatingconditionsthanthemoreaccuratelaboratorymethods,suchasionchromatographyandatomicabsorption.1.1Thison-linetestmethodincludeshydrogenexchangeanddegassingbyboilingandprovidesmeansfordetermininganions(suchasCl,SO4,NO3,andF)atlevelsaslowas2g/L(2ppb)andcarbondioxideatthelevelof0.01to10mg/L(ppm)at25Cinhighpuritywaterandsteamcondensatebymeasuringelectricalconductivity.1.2Theconductivityofallanions(exceptOH)isdeterminedandnottheconductivityofanindividualanionifmorethanoneispresent.Ifonlyoneanionispresent(suchasClorSO4),referencetoandorprovidesthechlorideorsulfateandCO2concentration.1.3Thistestmethodhasbeenimprovedinaccuracybyusingamodernmicroprocessorinstrumentforconductivityandtemperaturemeasurementandappropriatetemperaturecompensationalgorithmsforcompensationto25C.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:17_220_20
【页数】:7P.;A4
【正文语种】:

标准名称：	蒸气机车用鹤岗煤质量标准
中标分类：	矿业 >> 固体燃料矿 >> 车船、煤气用煤
发布日期：
实施日期：	2004-01-01
首发日期：
作废日期：
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