Standard - Microbiology of food and animal feeding stuffs - Horizontal method for the detection and enumeration of Listeria monocytogenes - Part 1: Detection method - Amendment 1: Modification of the isolation media and the haemolysis test, and inclusion of precision data (ISO 11290-1:1996/Amd 1:2004) SS-EN ISO 11290-1/A1:2005 - Svenska institutet för standarder, SIS