Status : Revised, Withdrawn Published : October 1979 Replaced By : BS 5763-2:1991, ISO 4832:1991
General method of preparation of poured plates of selective culture medium and inoculation in pairs with the test sample and with decimal dilutions, incubation at 30°C for 24 h, calculation of number of micro-organisms per gram or per millilitre of sample from the number of colonies.
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