BS G 190:1964

This standard BS G 190:1964 Specification for cabin altimeters for aircraft is classified in these ICS categories:

• 49.090 On-board equipment and instruments

This British Standard specifies the general design requirements and test procedures for two grades of pressure cabin altimeters for aircraft:

• Grade I: for use with the pressurization control system, having a range of – 2 000 ft to + 20 000 ft.
• Grade II: for use by the pilot, having a range of – 2 000 ft to + 30 000 ft.