This standard BS EN 15923:2011 Fertilizers. Extraction of phosphorus soluble in Joulie's alcaline ammonium citrate is classified in these ICS categories:
65.080 Fertilizers
This document specifies the procedure for the extraction of phosphorus soluble in Joulie’s alkaline ammonium citrate. The method is applicable to all the straight and compound phosphate fertilizers, in which the phosphate occurs in an alumino-calcic form.
