Abstract
The paper summarizes an investigation conducted to evaluate protective clothing and equipment for personnel who might be required to work up to 90 minutes in the Saturn S-IC booster interstage prior to launch at temperatures approaching -100°F. Because the environment might be either oxygen-rich or -deficient, the selected material must be compatible with liquid oxygen. Tests of clothing and equipment have been conducted in environments to -100°F temperature. Subjects wore various types of arctic clothing and respiratory equipment. In the cold environment they performed tasks simulating those which would be required in the booster interstage. The exposure times were varied from 15 to 57 minutes. The limiting parameters appear to be communications, visibility, and satisfactory respiratory protection at this temperature.