Geotechnical investigation and testing - Laboratory testing of soil - Part 3: Determination of particle density, Pycnometer method (ISO/TS 17892-3:2004); German version CEN ISO/TS 17892-3:2004— 12 стр.
Geotechnical investigation and testing - Laboratory testing of soil - Part 3: Determination of particle density (ISO 17892-3:2015, Corrected version 2015-12-15); German version EN ISO 17892-3:2015— 21 стр.