prEN 17777

Scope

This document specifies references to the methods for the determination of the following specific elements in organic and organo-mineral fertilizers: Determination of the total phosphorus content; Determination of the total potassium content; Determination of the total calcium content; Determination of the total magnesium content; Determination of the total sodium content; Determination of the total sulphur content; Determination of the inorganic arsenic content; Determination of the cadmium content; Determination of the total chromium content; Determination of the total mercury content; Determination of the total nickel content; Determination of the total lead content; Determination of the total copper content; Determination of the total zinc content; Determination of the water-soluble calcium content; Determination of the water-soluble magnesium content; Determination of the water-soluble sodium content; Determination of the water-soluble sulphur content. This document specifies references to the methods for the determination of the following specific elements in organo-mineral fertilizers: Determination of the water-soluble phosphorus content; Determination of the water-soluble potassium content; Determination of the neutral ammonium citrate soluble phosphorus content Determination of the formic acid soluble phosphorus content; Determination of the total boron content; Determination of the total cobalt content; Determination of the total iron content Determination of the total manganese content Determination of the total molybdenum content; Determination of the water-soluble boron content; Determination of the water-soluble cobalt content; Determination of the water-soluble copper content; Determination of the water-soluble iron content; Determination of the water-soluble manganese content; Determination of the water-soluble molybdenum content; Determination of the water-soluble zinc content. The scope of the standards referenced in this document specifies in which cases the method is also applicable to blends.