Description / Abstract:
Currently, existing civil aviation standards address the design
and certification of oxygen dispensing devices that utilize oxygen
sources supplying at least 99.5% oxygen. This Aerospace Information
Report discusses issues relating to the use in the passenger cabin
of oxygen enriched breathing gas mixtures having an oxygen content
of less than 99.5% and describes one method of showing that
passenger oxygen dispensing devices provide suitable hypoxia
protection when used with such mixtures.
Purpose
There is no current guidance available to certify passenger
oxygen dispensing devices (e.g., oxygen masks) for use with oxygen
sources supplying less than 99.5% oxygen. This document is intended
to provide information for use as a supplement to standards that
address other aspects of passenger oxygen dispensing device
performance, such as AS8025.