【英文标准名称】:StandardTestMethodforDeterminationofRadioactiveIroninWater
【原文标准名称】:测定水中放射性铁的标准试验方法
【标准号】:ASTMD4922-2001
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D19.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:铁含量;放射性污染;水质分析;试验
【英文主题词】:anionexchange;55Fe;liquidscintillationcounting;radioactiveiron;radioactivity;NumberCode13.060.50(Examinationofwaterforchemicalsubstances);13.060.60(Examinationofwaterforphysicalproperties)
【摘要】:Radioactiveironisproducedbyneutronactivationofstableiron.Itsconcentrationinreactorcoolantisusedtomonitorthecorrosionofreactorpartssuchasreactorfuel-claddingmaterialandreactorstructuralcomponents.Thistechniqueeffectivelyremovesotheractivationandfissionproductssuchasisotopesofiodine,zinc,manganese,cobalt,andcesiumbytheadditionofhold-backcarriersandananionexchangetechnique.Thefissionproducts(zirconium-95andniobium-95)areselectivelyelutedwithhydrochloric-hydrofluoricacidwashes.TheironisfinallyseparatedfromZn+2byprecipitationofFePO4atapHof3.0.1.1Thistestmethodcoversthedeterminationof55Feinthepresenceof59Febyliquidscintillationcounting.Thea-prioriminimumdetectableconcentrationforthistestmethodisE-3Bq/mL.1.2Thistestmethodwasdevelopedprincipallyforthequantitativedeterminationof55Fe.However,afterpropercalibrationoftheliquidscintillationcounterwithreferencestandardsofeachnuclide,59Femayalsobequantified.1.3ThistestmethodwasusedsuccessfullywithTypeIIIreagentwaterconformingtoSpecificationD1193.Itistheresponsibilityoftheusertoensurethevalidityofthistestmethodforwatersofuntestedmatrices.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Foraspecifichazardstatement,seeSection9.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50;13_060_60
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Technicaldeliveryconditionsforthesurfaceconditionofhotrolledsteelplate,wideflatsandsections;part3:sections;germanversionEN10163-3:1991
【原文标准名称】:热轧钢制品表面状态的供货条件(薄板.宽扁钢和异型钢).第3部分:异型钢
【标准号】:DINEN10163T.3-1991
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-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】:
【国际标准分类号】:
【页数】:
【正文语种】: