biblio toscana

Iso 16649-1:2001: Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli

part. 1: colony-count technique at 44° C using membranes and 5-bromo-4-chloro-3-indolyl beta-D-gucuronide

Iso 16649-2:2001: Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli

part. 1: colony-count technique at 44° C using 5-bromo-4-chloro-3-indolyl beta-D-gucuronide