ISO INTERNATIONAL STANDARD 15213-1 First edition 2023-01 Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 1: Enumeration of sulfite-reducing Clostridium spp. by colony-count technique Microbiologie de la chaine alimentaire - Méthode horizontale pour la recherche et le denombrement de Clostridium spp. - Partie 1: Dénombrement des bactéries Clostridium spp. sulfito- réductrices par la technique de comptage des colonies Reference number IS0 15213-1:2023(E) ISO @IS02023 IS0 15213-1:2023(E) COPYRIGHT PROTECTED DOCUMENT IS02023 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may the internet or an intranet, withoutpriorwrittenpermission.Permission can be requested from eitherIso at the addressbelow or Iso's member body in the country of the requester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214Vernier,Geneva Phone: +41 22 749 01 11 Email: copyright@iso.org Website: www.iso.org PublishedinSwitzerland i @ IS0 2023 - All rights reserved