# NEN-EN 15961

## Fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfates

active, Most Current
 Organization: NEN Publication Date: 1 January 2017 Status: active Page Count: 9 ICS Code (Fertilizers): 65.080
##### scope:

NEN-EN 15961 specifies a method for the extraction of water-soluble calcium, magnesium, sodium and sulfur (in the form of sulfates), so that the same extract can be used for the determination of each nutrient required. The method is solely applicable to fertilizers listed in Regulation (EC) 2003/2003, Annex I [2]), for which a declaration of the water-soluble calcium, magnesium, sodium, and sulfur (in the form of sulfates) is provided for in this Regulation.

### Document History

NEN-EN 15961
January 1, 2017
Fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfates
NEN-EN 15961 specifies a method for the extraction of water-soluble calcium, magnesium, sodium and sulfur (in the form of sulfates), so that the same extract can be used for the determination of each...
May 1, 2016
Fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfates
NEN-EN 15961 specifies a method for the extraction of water-soluble calcium, magnesium, sodium and sulfur (in the form of sulfates), so that the same extract can be used for the determination of each...
December 1, 2011
Fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfates
This European Standard specifies a method for the extraction of total calcium, total magnesium and total sodium and for the extraction of total sulfur present in the form of sulfates, so that the...
May 1, 2011
Fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfates
This European Standard specifies a method for the extraction of total calcium, total magnesium and total sodium and for the extraction of total sulfur present in the form of sulfates, so that the...