BS ISO 11275-2004 土质.非饱和水渗导性和水保持特性的测定.风的蒸发法

作者:标准资料网 时间:2024-05-15 10:54:40  浏览:8063   来源:标准资料网

【英文标准名称】:Soilquality-Determinationofunsaturatedhydraulicconductivityandwater-retentioncharacteristic-Wind'sevaporationmethod
【原文标准名称】:土质.非饱和水渗导性和水保持特性的测定.风的蒸发法
【标准号】:BSISO11275-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-07-13
【实施或试行日期】:2004-07-13
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:土壤;土壤普查;水传导;试验;定义;土壤组分;数学计算;解吸;含水量;测量;土壤湿度计;水分保持值;均匀性;保持指数;土壤采样;风
【英文主题词】:Compositionoftheground;Definition;Definitions;Desorption;Homogeneity;Mathematicalcalculations;Measurement;Retentionindex;Soilsampling;Soilsurveys;Soils;Tensiometers;Testing;Waterconductivity;Watercontent;Waterretentionvalue;Winds
【摘要】:ThisInternationalStandardspecifiesalaboratorymethodforthesimultaneousdeterminationinsoilsoftheunsaturatedhydraulicconductivityandofthesoilwater-retentioncharacteristic.Itisapplicableonlytomeasurementofthedryingordesorptioncurve.Applicationofthemethodisrestrictedtosoilsampleswhichare,asfaraspossible,homogeneous.Themethodisnotapplicabletosoilswhichshrinkintherangeofmatricheadhm=0cmtohm=-800cm.Therangeofthedeterminationoftheconductivitydependsonthesoiltype.Itliesbetweenmatricheadsofapproximatelyhm=-50cmandhm=-700cm.Therangeofthedeterminationofthewater-retentioncharacteristicliesbetweenmatricheadsofapproximatelyhm=0cmandhm=-800cm.NOTE1Aninfiltrometermethodcanbeusedtodeterminehydraulicconductivitiesnearsaturation.NOTE2ISO11274givesmethodstodeterminethewater-retentioncharacteristicformatricheadsbetween0cmand-15000cm.
【中国标准分类号】:B11
【国际标准分类号】:13_080_40
【页数】:20P.;A4
【正文语种】:英语