Soil quality – Physical laboratory tests – Part 16: Determination of aggregate stability using the method of wet sieving
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 12/01/2015

Soil quality – Physical laboratory tests – Part 16: Determination of aggregate stability using the method of wet sieving
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 01/01/2009