BS 4285-3-3.13:1990 Microbiological examination for dairy purposes. Methods for detection and/or enumeration of specific groups of microorganisms-Enumeration of Clostridium perfringens
1991BS 4285-3-3.13:1990 Microbiological examination for dairy purposes. Methods for detection and/or enumeration of specific groups of microorganisms-Enumeration of Clostridium perfringens