Historical
ISO 7932:1993
Microbiology -- General guidance for the enumeration of Bacillus cereus -- Colony-count technique at 30 degrees C
The principle of the method specified is surface plating of a specified quantity of the test sample if the initial product is liquid, or of a specified quantity of an initial suspension in the case of other products, preparing other plates using decimal dilutions of the test sample, aerobic incubation of the plates at 30 °C, calculating the number of B. cereus per gram or per millilitre of sample from the number of confirmed colonies. Applies to products intended for human consumption or animal feeding stuffs.
Content Provider
International Organization for Standardization [iso]
