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

SCHEDULE 2 METHODS OF ANALYSIS

12a. DETERMINATION OF WATER-SOLUBLE MAGNESIUM — ATOMIC ABSORPTION SPECTROPHOTOMETRlC METHOD

5.1    APPARATUS

Atomic absorption spectrophotometer with a magnesium lamp (285.2 nm).