2014DIN EN ISO 11276:2014-07 Soil quality - Determination of pore water pressure - Tensiometer method (ISO 11276:1995), German version EN ISO 11276:2014
2014DIN EN ISO 11276:2014 Soil quality - Determination of pore water pressure - Tensiometer method (ISO 11276:1995), German version EN ISO 11276:2014
2001DIN ISO 11276:2001 Soil quality - Determination of pore water pressure - Tensiometer methods (ISO 11276:1995)