DIN 10164-2:1986-08

This standard specifies a method for the determination of Enterobacteriaceae with a drop plating method. It is applicable to meat and meat products and products which contain meat or meat products.*Subdivision of agar plates with a selective culture medium in sectors. Drop by drop inoculation of the sectors with partial volumes of 0,05 ml of the undiluted homogenized sample or the initial suspension and the further dilutions. Incubation of the plates at 30 °C for 48 h under anaerobic conditions. Calculation of the number of Enterobacteriaceae per g or ml of sample from the number of colonies grown on the sectors.