BS 7755-3.3:1995
Soil quality. Chemical methods. Determination of effective cation exchange capacity and base saturation level using barium chloride solution

Standard No.

BS 7755-3.3:1995

Release Date

1995

Published By

British Standards Institution (BSI)

Latest

BS 7755-3.3:1995

Scope

This International Standard specifies a method for the determination of the cation exchange capacity (CEC) at the pH of the soil and of the determination of the content of exchangeable sodium, potassium, calcium and magnesium in soil. This International Standard is applicable to all types of air-dried soil samples; pretreatment according to ISO 11464 is recommended. NOTES 1 The method described suffers from interference from calcium as calcite or gypsum in the sample. Also, the pres-ence of any soluble salts gives values for the exchangeable cations that are higher than the actual exchangeable amounts[3],[4]. 2 Measurement of the specific electrical conductivity of the soil samples according to ISO 11265 will indicate if the soil samples are affected by salt. note:*See national foreword for details of textual errors.

BS 7755-3.3:1995 history

• 1995 BS 7755-3.3:1995 Soil quality. Chemical methods. Determination of effective cation exchange capacity and base saturation level using barium chloride solution