ISO 23470:2018
Soil quality - Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt(III)chloride solution

Standard No.

ISO 23470:2018

Release Date

2018

Published By

International Organization for Standardization (ISO)

Latest

ISO 23470:2018

Scope

This document specifies a method for the determination of cation exchange capacity (CEC) and the content of exchangeable cations (Al, Ca, Fe, K, Mg Mn, Na) in soils using a hexamminecobalt(III)chloride solution as extractant. For soils containing calcium carbonate a calcite saturated hexamminecobalt(III) chloride solution is specified particularly for determination of exchangeable Ca. This document is applicable to all types of air-dry soil samples which have been prepared according to ISO 11464.

ISO 23470:2018 Referenced Document

• ISO 11464:2006 Soil quality - Pretreatment of samples for physico-chemical analysis
• ISO 11465:1993 Soil quality; determination of dry matter and water content on a mass basis; gravimetric method

ISO 23470:2018 history

• 2018 ISO 23470:2018 Soil quality - Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt(III)chloride solution
• 2007 ISO 23470:2007 Soil quality - Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution