標準號：ISO 23470-2007
中文標準名稱：土質.用三氯六氨基鈷溶液測定有效陽離子交換能力(CEC)和可交換的陽離子
英文標準名稱：Soil quality - Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution
標準類型：B10
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：B10
國際標準分類號：13.080.20
適用范圍：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.