ISO 11260:1994

Soil quality — Determination of effective cation exchange capacity and base saturation level using barium chloride solution

Specifies a method for the determination of the cation exchange capacity (CEC) at the pH of the soil and for the determination of the content of exchangeable sodium, potassium, calcium and magnesium in soil. Is applicable to all types of air-dried soil samples; pretreatment according to ISO 11464 is recommended. The determination of CEC as specified here is a modification of the method by Gillman.