BS PD CEN/TS 17757:2022

Full Description

This document specifies references to methods for the determination of the content of the following specific nutrients in inorganic fertilizers:

the total nitrogen content;
the ammoniacal nitrogen content;
the nitric nitrogen content;
the urea nitrogen content;
the content of nitrogen from isobutylidenediurea (IBDU) and crotonylidenediurea (CDU);
the cyanamide nitrogen content;
the methylene-urea nitrogen content (and urea formaldehyde, if applicable);
the total phosphorus content;
the water-soluble phosphorus content;
the neutral ammonium citrate soluble phosphorus content;
the water-soluble potassium content;
the total magnesium content;
the water-soluble magnesium content;
the total calcium content;
the water-soluble calcium content;
the total sulfur content;
the water-soluble sulfur content;
the total sodium content;
the water-soluble sodium content.

This document is applicable to EU fertilizing products classified as PFC 1(C) and PFC 7 as long as the blend only consists of EU fertilizing products classified as PFC 1(C), PFC 2 and PFC 5 as specified in the Regulation (EU) 2019/1009 [1]. See more