Possible.
Seems a bit odd though. Transitioning from Hong Kong (imperial level) airspace to Mainland China airspace (metric), we would say "Climb to Flight Level Three Thousand Three Hundred Metres".
When descending to 1,800 metres for instance (no FL in this case) , we include the QNH.
Have never used, nor heard them use the term "on standard" but I'll take your word for it de facto.
Last edited by bekolblockage; 14th Jun 2012 at 04:55.