This Aerospace Standard covers two types of compensated altimeters which indicate, by visual means, the pressure altitude compensated for the static pressure system errors of the aircraft.

Type I - Range: -1,000 to 30,000 feet. Barometric pressure--scale range: at least 28.1-30.99 in. Hg (952-1049 millibars). May include markers working in conjunction with the Barometric Pressure Scale to indicate pressure altitude.

Type II - Range: -1,000 to 60,000 feet. Barometric pressure--scale range: at least 28.1- 30.99 in. Hg (952-1049 millibars). May include markers working in conjunction with the Barometric Pressure Scale to indicate pressure.