DIN EN 13651:2002-01

This European Standard specifies an extraction method for the routine determination of calcium chloride/DTPA (CAT-method) extractable nutrients and recommends suitable analytical methods as shown in Annex B for the determination of the extracted nutrients in soil improvers and growing media. Note 1: This method is not applicable to liming materials or sewage sludges and is not suitable for materials like rockwool and foam slabs. Note 2: The requirements of the standard may differ from the national legal requirements for the declaration of the products concerned.