The Fertilisers (Sampling and Analysis) Regulations (Northern Ireland) 1991

2.    FIELD OF APPLICATION

The method is applicable to all extracts of fertilisers(1), for the determination of the different forms of phosphorus.

(1)

Phosphorus soluble in mineral acids, water soluble phosphorus, phosphorus soluble in solutions of ammonium citrate, phosphorus soluble in 2% citric acid and phosphorus soluble in 2% formic acid.