1. Aerobic count at 30 °C-drop plating method. DIN 10161–2;Anonymous,1984
2. Determination of Escherichia coli-fluorescence optical colony count method. DIN 10110;Anonymous,1994
3. Horizontal method for the detection of thermotolerant Campylobacter. ISO 10272;Anonymous,1995
4. Horizontal method for the detection and enumeration of Listeria monocytogenes. ISO 11290–1;Anonymous,1996
5. Horizontal method for the detection of Salmonella spp. ISO 6579;Anonymous,2002