Encyclopedia Astronautica
1968.04.16 - Results of Apollo boilerplate 1224 tests in a 60%-oxygen / 40% nitrogen cabin atmosphere

A meeting at MSC with Irving Pinkel of Lewis Research Center and Robert Van Dolah of the Bureau of Mines reviewed results of boilerplate 1224 tests at 11.4 newtons per square centimeter (16.5 pounds per square inch) in a 60-percent-oxygen and 40-percent-nitrogen atmosphere.

(Both Pinkel and Van Dolah had been members of the Apollo 204 Review Board. Others attending were Jerry Craig, Richard Johnston, and George Abbey, all of MSC; and George Gill and Fred Yeamans, both of GE.) The total boilerplate 1224 test program was reviewed as well as test results at 11 newtons per sq cm (16 psi) in 60 percent oxygen and 40 percent nitrogen and also in 95 percent oxygen. Both Pinkel and Van Dolah agreed with the MSC position that the tests proved the spacecraft was qualified for testing and flight in the 60-40 environment. They expressed the opinion that the 60-40 atmosphere seemed a reasonable compromise between flammability, physiological, and operational considerations.

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