ISO 23470:2007 土壤质量 三氯六氨络钴溶液法测定有效性阳离子交换量（CEC）和可交换性阳离子

标准编号：ISO 23470:2007

中文名称：土壤质量 三氯六氨络钴溶液法测定有效性阳离子交换量（CEC）和可交换性阳离子

英文名称：Soil quality — Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution

发布日期：2007-05

标准范围

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.

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