This standard specifies a method for the routine extraction of water-soluble extractable nutrients and elements (as listed in annex B) in soil improvers and growing media. The method is not applicable to liming materials and preformed materials such as mineral wool slabs and foam slabs.
DS/EN 13652:2002 history
2002DS/EN 13652:2002 Soil improvers and growing media - Extraction of water soluble nutrients and elements