???Official detection/quantitation methods for Acetobacter and Gluconobacter???

[Peter Ahnert]

I would like to know if there are any official/standardized methods for the
detection and quantitation of Acetobacter and/or Gluconobacter. 

I am especially interested in the above in regard to food products and
healthcare.

I have been looking into some publications by the FDA and AOAC. I could not
find anything though.

Any information on official bodies governing this, their publications, web
sites etc. is highly appreciated. I am also interested by
regulations/standards from countries other than the USA!

Thank you very much for your efforts.

Peter Ahnert