【英文标准名称】:StandardTestMethodforOn-LineMeasurementofpH1
【原文标准名称】:pH1在线测量用标准试验方法
【标准号】:ASTMD6569-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:直线;测量;在线;PH;pH值测定;试验方法;测试
【英文主题词】:hydrogenion;on-line;pH;processmeasurement
【摘要】:pHisameasureofthehydrogenionactivityinwater.Itisamajorparameteraffectingthecorrosivityandscalingpropertiesofwater,biologicallifeinwaterandmanyapplicationsofchemicalprocesscontrol.Itisthereforeimportantinwaterpurification,useandwastetreatmentbeforereleasetotheenvironment.On-linepHmeasurementispreferredoverlaboratorymeasurementtoobtainrealtime,continuousvaluesforautomaticcontrolandmonitoringpurposes.1.1ThistestmethodcoversthecontinuousdeterminationofpHofwaterbyelectrometricmeasurementusingtheglass,theantimonyortheion-selectivefield-effecttransistor(ISFET)electrodeasthesensor.1.2Thistestmethoddoesnotcovermeasurementofsampleswithlessthan100S/cmconductivity.RefertoTestMethodD5128.1.3ThistestmethoddoesnotcoverlaboratoryorgrabsamplemeasurementofpH.RefertoTestMethodD1293.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:71_040_50(PHYSICOCHEMICALMETHODSOFANALYSIS)
【页数】:7P.;A4
【正文语种】: