1. When chemical checks are to be carried out by the food authority samples must be taken and subjected to laboratory analysis for the control of the following parameters;
(a)TBV-N (Total Volatile Basic-Nitrogen) and TMA-N (Trimethylamine-Nitrogen);
(b)Histamine;
nine samples must be taken from each batch; these must fulfil the following requirements
the mean value must not exceed 100 parts per million ( “ppm”);
two samples may have a value of more than 100 ppm but less than 200 ppm;
no sample may have a value exceeding 200 ppm.