EN 13041:1999 Soil Improvers and Growing Media - Determination of Physical Properties - Dry Bulk Density, Air Volume, Water Volume, Shrinkage Value and Total Pore Space Incorporating A1: 2006
2011EN 13041:2011 Soil improvers and growing media - Determination of physical properties - Dry bulk density, air volume, water volume, shrinkage value and total pore space
1999EN 13041:1999 Soil Improvers and Growing Media - Determination of Physical Properties - Dry Bulk Density, Air Volume, Water Volume, Shrinkage Value and Total Pore Space Incorporating A1: 2006