BS EN ISO 23470. Soil quality. Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution— 34 стр.
Soil quality - Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalttrichloride solution (ISO 23470:2018); German version EN ISO 23470:2018— 33 стр.
Soil quality - Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution (ISO 23470:2007); German version EN ISO 23470:2011— 23 стр.