ISO 2962:1984

Cheese and processed cheese products — Determination of total phosphorus content — Molecular absorption spectrometric method ISO 2962:1984

Publication date:   May 1, 1984

Scope

Describes a procedure which includes the digestion of cheese by sulphuric acid and hydrogen peroxide, the addition of molybdate-ascorbic acid solution to form molybdenum blue, and the molecular absorption spectrometric measurement of the blue colour formed. Instead of wet digestion it is also possible to use dry ashing provided that the same results are given by the procedure.