BS EN ISO 17468:2016

1   Scope This International Standard gives technical requirements and guidance on the establishment or revision of standardized reference methods for the analysis (detection or quantification) of microorganisms in

— products intended for human consumption and for the feeding of animals,

— environmental samples in the area of food/feed production and food/feed handling, and

— samples from the primary production stage.

This International Standard defines the technical stage (or early stage) of the establishment
  of a new  standardized reference method  or of the revision of an existing  standardized reference method . It includes, in particular, requirements and guidance on the validation of the selected
  method. 
This International Standard is intended to be implemented in particular by ISO/TC 34/SC 9
  and its corresponding structure at CEN level, CEN/TC 275,  Food analysis — Horizontal methods , Working Group 6,  Microbiology of the food chain.