OpenLegislation

Division 1

United Kingdom

Original text. Later amendments are not shown.

  1. (a)

    Representative samples of the digestion residues or compost taken during or immediately after transformation at the biogas plant or composting at the composting plant in order to monitor the process must comply with the following standards:

    • Escherichia coli: n = 5, c = 1, m = 1 000, M = 5 000 in 1 g;

      or

    • Enterococcaceae: n = 5, c = 1, m = 1 000, M = 5 000 in 1 g;

    and

  2. (b)

    Representative samples of the digestion residues or compost taken during or on withdrawal from storage must comply with the following standards:

    Salmonella: absence in 25 g: n = 5; c = 0; m = 0; M = 0

Where in the case of point (a) or (b):

n

  • number of samples to be tested;

    • m

  • threshold value for the number of bacteria; the result is considered satisfactory if the number of bacteria in all samples does not exceed m;

    • M

  • maximum value for the number of bacteria; the result is considered unsatisfactory if the number of bacteria in one or more samples is M or more; and

    • c

  • number of samples the bacterial count of which may be between m and M, the sample still being considered acceptable if the bacterial count of the other samples is m or less.