The Fertilisers (Sampling and Analysis) Regulations 1991 No. 973

SCHEDULE 2 METHODS OF ANALYSIS

PART I

9a. EXTRACTION OF TOTAL PHOSPHORUS BY MINERAL ACIDS

APPARATUS

5.—5.1 A Kjeldahl flask, with a capacity of at least 500 ml, or a 250 ml round-bottomed flask with a glass tube forming a reflux condenser.