The Fertilisers (Sampling and Analysis) Regulations (Northern Ireland) 1991 No. 540

SCHEDULE 2 METHODS OF ANALYSIS

PART II

17. DETERMINATION OF FINENESS OF POTASSIC BASIC SLAG

Preparation of the sample

4.1  Thoroughly mix the sample and quarter down until a portion of about 100 g is obtained. Heat this portion at 100°C until dry, and throughly mix.