ISO 23470-2007 土质.用三氯六氨基钴溶液测定有效阳离子交换能力(CEC)和可交换的阳离子

标准号：ISO 23470-2007
中文标准名称：土质.用三氯六氨基钴溶液测定有效阳离子交换能力(CEC)和可交换的阳离子
英文标准名称：Soil quality - Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution
标准类型：B10
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：B10
国际标准分类号：13.080.20
适用范围：This International Standard specifies a method for the determination of the cation exchange capacity (CEC)and the content of exchangeable cations (Al3+, Ca2+, Fe2+, K+, Mg2+, Mn2+, Na+) in soils using ahexamminecobalt trichloride solution as extractant.NOTE As the pH of a soil suspension in the hexamminecobalt trichloride solution is close to the pH of the suspensionin water, this method is considered to give the effective CEC, i.e. the CEC at the soil pH.This International Standard is applicable to all types of air-dried soil samples which have been prepared inaccordance with ISO 11464.References and results of the comparison with other methods (barium chloride, ammonium acetate) are givenin Annex A.