DIN 19683-13:1997 Methods of soil investigations for agricultural water engineering - Physical laboratory tests - Part 13: Determination of soil density, total pore volume and porenumber of mineral soils
2007DIN 19683-13:2007-07 Soil quality - Physical laboratory tests - Part 13: Determination of soil volume percentage, total pore volume and pore number of mineral soils
2007DIN 19683-13:2007 Soil quality - Physical laboratory tests - Part 13: Determination of soil volume percentage, total pore volume and pore number of mineral soils
1997DIN 19683-13:1997 Methods of soil investigations for agricultural water engineering - Physical laboratory tests - Part 13: Determination of soil density, total pore volume and porenumber of mineral soils