BS EN ISO 14254-2011 土壤质量.氯化钡萃取液中互换酸性的测定
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【英文标准名称】:Soilquality.Determinationofexchangeableacidityinbariumchlorideextracts
【原文标准名称】:土壤质量.氯化钡萃取液中互换酸性的测定
【标准号】:BSENISO14254-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-07-31
【实施或试行日期】:2011-07-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acidity;Barium;Bariumcompounds;Bases(chemical);Cationexchange;Cations;Chemicalanalysisandtesting;Chemicalsubstances;Compositionoftheground;Determination;Determinationofcontent;Exchange;Exchangecapacity;Ionexchanges;Ionexchanging;Mathematicalcalculations;pH;Quality;Saturation;Soilanalysis;Soilsurveys;Soils;Spectrometry;Testing;Waterpractice
【摘要】:ThisInternationalStandardspecifiesamethodforthedeterminationofexchangeableacidityinbariumchlorideextractsofsoilsamplesobtainedaccordingtoISO11260.Theproceduredescribedhereinmainlyconcernsthedeterminationoftotalexchangeableaciditybymeansofafixed-pHend-pointtitration(seenote).Twooptionalproceduresarealsogiven,describingrespectively,determinationsoffreeHacidityandofaluminiumintheextracts.ThisInternationalStandardisapplicabletoalltypesofair-drysoilsampleswhichhavebeenpretreatedinaccordancewithISO11464.NOTETitrationofexchangeableaciditybymeansofafixed-pHend-pointmaynotbespecifictoagivenacidspecies.TheendpointpHvalueretainedis7,8,correspondingtocompleteprecipitationofAlionsinsyntheticsolutions.TitrationofsoilextractstothispHmayalsoincludesomemoreweaklyionizedspeciesorweakacidorganiccompounds.
【中国标准分类号】:Z18
【国际标准分类号】:13_080_10
【页数】:14P.;A4
【正文语种】:英语
【原文标准名称】:土壤质量.氯化钡萃取液中互换酸性的测定
【标准号】:BSENISO14254-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-07-31
【实施或试行日期】:2011-07-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acidity;Barium;Bariumcompounds;Bases(chemical);Cationexchange;Cations;Chemicalanalysisandtesting;Chemicalsubstances;Compositionoftheground;Determination;Determinationofcontent;Exchange;Exchangecapacity;Ionexchanges;Ionexchanging;Mathematicalcalculations;pH;Quality;Saturation;Soilanalysis;Soilsurveys;Soils;Spectrometry;Testing;Waterpractice
【摘要】:ThisInternationalStandardspecifiesamethodforthedeterminationofexchangeableacidityinbariumchlorideextractsofsoilsamplesobtainedaccordingtoISO11260.Theproceduredescribedhereinmainlyconcernsthedeterminationoftotalexchangeableaciditybymeansofafixed-pHend-pointtitration(seenote).Twooptionalproceduresarealsogiven,describingrespectively,determinationsoffreeHacidityandofaluminiumintheextracts.ThisInternationalStandardisapplicabletoalltypesofair-drysoilsampleswhichhavebeenpretreatedinaccordancewithISO11464.NOTETitrationofexchangeableaciditybymeansofafixed-pHend-pointmaynotbespecifictoagivenacidspecies.TheendpointpHvalueretainedis7,8,correspondingtocompleteprecipitationofAlionsinsyntheticsolutions.TitrationofsoilextractstothispHmayalsoincludesomemoreweaklyionizedspeciesorweakacidorganiccompounds.
【中国标准分类号】:Z18
【国际标准分类号】:13_080_10
【页数】:14P.;A4
【正文语种】:英语
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