Table 3.

Test methods used for the various microbiological parameters

Microbiological parameters	Test methods
Isolation of Campylobacter spp.	ISO 10272-1:2017
Enumeration of CPS, including S. aureus	BS EN ISO 6888-1:1999
Isolation of E. coli O157	BN EN ISO 16654:2001
Detection of presumptive STEC (stx genes) and isolation of STEC	CEN/ISO TS 13136
Isolation and enumeration of Listeria spp., including L. monocytogenes	BS EN ISO 11290-1:2017 and 11290-2:2017
Isolation of Salmonella spp.	ISO 6579:2017
Enumeration of ACCs	BS 4833-2:2013
Enumeration of Enterobacteriaceae	Either based on BS EN ISO 21528-2 2004 or using an automated MPN technique [22]
Enumeration of β-glucuronidase producing E. coli	Based on BS ISO 16649-2:2001 using either a surface spread or a pour plate technique
Enumeration of coliforms	BS ISO 4832:2006

ACC, aerobic colony counts; CPS, coagulase positive staphylococci; STEC, Shiga toxin-producing E. coli.