Standard scheme: recent trend analysis

This external quality assessment (EQA) scheme is suitable for laboratories that routinely test for a range of food-borne pathogens and indicator organisms.


Standard scheme: trend analysis

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email Please tell us what format you need. It will help us if you say what assistive technology you use.


The examinations covered are:

  • aerobic colony counts
  • Bacillus cereus
  • Campylobacter spp.
  • Clostridium perfringens
  • Escherichia coli O157
  • Listeria monocytogenes
  • Listeria spp.
  • Salmonella spp.
  • Staphylococcus aureus
  • coliforms
  • enterobacteriaceae
  • Escherichia coli.
Published 3 September 2014
Last updated 9 March 2018 + show all updates
  1. Updated with recent trend analysis.
  2. Updated standard scheme: trend analysis.
  3. Updated with recent standard scheme: trend analysis.
  4. Updated standard scheme: trend analysis for distribution 266.
  5. Standard scheme distribution 262 added for trend analysis.
  6. The Standard scheme: trend analysis April 2005 to October 2014 has been added.
  7. First published.