In China they use "on standard" to mean Flight Level, as opposed to "on QNH". They probably dont use 'Flight Level' because by definition this implies feet, not metres. The following definintion of Flight Level from Wikipedia may shed some light.
A Flight Level (FL) is a standard nominal altitude of an aircraft, in hundreds of feet. This altitude is calculated from the International standard pressure datum of 1013.25 hPa (29.92 inHg).