Safety rules in using compressed air?

1. Only authorized persons should used compressed air. 2. The body or clothes should not be cleaned with compressed air. 3. Compressed air hose pipes should not be placed across passage ways 4. Leakage of compressed air should not be tested with hands. 5. While working with tools run by compressed air safety shoes are to be used. 6. The tools should not be kept on position when not in use.