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ASTM D5543-1994(2005) 水中低水平溶解氧的标准试验方法

作者:标准资料网 时间:2024-05-13 23:49:56  浏览:9863   来源:标准资料网
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【英文标准名称】:StandardTestMethodsforLow-LevelDissolvedOxygeninWater
【原文标准名称】:水中低水平溶解氧的标准试验方法
【标准号】:ASTMD5543-1994(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】:水;试验;需氧量;锅炉;蒸汽;溶解氧DO;玻璃安瓿瓶;仪器测量;L溶解氧DO;水平∧100MUG;等级溶解氧;RHODAZINED;蒸汽浓缩物;低的;二色性仪器;锅炉进水器;颜色精密比较测定机法;LT;氧;比色分析;安瓿瓶
【英文主题词】:Ampoules;Bichromaticinstrument;Boiler;Boilerfeedwater;Colorcomparatormethod;Colorimetricanalysis-water;Dissolvedoxygen(DO);Glassampoules;Instrumentalmeasurement-water;Oxygendemand-water;RhodazineD;Steam;Steamcondensate;low-Leveldissolvedoxygen-water,test,;Ampoules;Bichromaticinstrument;Boilerfeedwater;Colorcomparatormethod;Colorimetricanalysis;Dissolvedoxygen(DO);Oxygen;RhodazineD;Steam;Steamcondensate;low-level(∧lt;100[mu]g/L)dissolvedoxygen(DO)-water,test
【摘要】:Dissolvedoxygenisdetrimentalincertainboilerandsteamcyclesbecauseitmayacceleratecorrosion.Concentrationsabove10x03BC;g/Lareunacceptableinmanyhigh-pressureboilersystems.Theefficiencyofdissolvedoxygenremovalfromboilerfeedwaterbychemicalormechanicalmeans,orboth,isdeterminedbymeasuringtheconcentrationbeforeandaftertheprocess.Themeasurementisalsomadetocheckforairleakageintotheboilersystem.Theoxygentreatmentmethodforboilercorrosionreductionrequiresinjectionofoxygenintotheboilerfeedwater.Theresultingoxygenlevelismonitoredforcontrolpurposes.1.1Thesetestmethodscoverthedeterminationoflow-level(∧lt;100[mu]g/L)dissolvedoxygeninthermal-cyclesteamcondensate,deaeratedboilerfeedwater,boilerwater,anddeaerateddeionizedwater.Thefollowingtestmethodsareincluded:Range,mg/LSectionsTestMethodA--ColorComparatorTest0to1008to17MethodUsingSelf-FillingGlassAmpoulesTestMethodB--InstrumentTestMethod0to10018to26UsingSelf-FillingGlassAmpoules1.2Thesetestmethodsmaybeapplicabletoelectronic-grade,pharmaceutical-grade,andotherhigh-puritywaters,althoughthesewerenotaddressedinthecollaborativestudy.1.3TestMethodAisacolorimetricprocedureapplicabletodissolvedoxygeninwaterintherangefrom0to100[mu]g/L.1.4TestMethodBisaninstrumentedcolorimetricprocedureapplicabletodissolvedoxygeninwaterintherangefrom0to100[mu]g/L.1.5Itistheuser'sresponsibilitytoensurethevalidityofthesetestmethodsforwatersofuntestedmatrices.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,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】:


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【英文标准名称】:Multi-elementmetalliccablesusedinanalogueanddigitalcommunicationandcontrol-Part4-2:Sectionalspecificationforscreenedcablescharacterizedupto600MHz;Workareaandpatchcordcables;GermanversionEN50288-4-2:2001
【原文标准名称】:模拟和数字通信和控制用多元件金属电缆.第4-2部分:不超过600MHZ的非屏蔽电缆分规范.工作区和间隔区电缆.
【标准号】:DINEN50288-4-2-2001
【标准状态】:作废
【国别】:德国
【发布日期】:2001-09
【实施或试行日期】:2001-09-01
【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】:
【英文主题词】:
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:33_120_10
【页数】:8P;A4
【正文语种】:德语



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