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

6.    EXPRESSION OF THE RESULTS

Determine the amount of hydrochloric acid consumed by the sample. 1 ml 0.5 N hydrochloric acid = 0.01402 g calcium oxide (CaO).

The neutralising value is expressed as a percentage by weight of calcium oxide (CaO), and refers to undried sample as received.