Product Code:SAE ARP1894 Title:Useful Life Determination for Chemical Oxygen Generators Issuing Committee:A-10 Aircraft Oxygen Equipment Committee Scope: The scope of this document is to provide a guideline for the preparation of a plan for testing of in-service chemical oxygen generators to confirm their design useful life. The test program should also allow determination with a sufficient level of confidence, whether generators are suitable for further use (i.e., life extension, or if the useful life limit has been reached).