DIN EN 13040:2008-01 Soil improvers and growing media - Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory compacted bulk density; German version EN 13040:2007
2008DIN EN 13040:2008-01 Soil improvers and growing media - Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory compacted bulk density; German version EN 13040:2007