Altimeter Check for RVSM airspace
As stated at RVSM rules , we are supposed to check altimeters before "entering RVSM airspace".(We most fly in Europe).
I usually do it(for RVSM purposes) on ground and during climb passing about 25000, 26000 FT and then every hour in cruise, but I have lots of co-workers who say this is useless because we already cross checked altimeters on ground and after take off when we set both altimeters to standard.
Despite I am sure about the correct procedure , I`d like to hear the opinion of you all guys and get if possible some documentation about that.