Commercial diving/Handling of gases used in diving

Relevance: Scuba diving, Surface supplied diving, Surface oriented wet bell diving.

Required outcomes:
 * 1) Discuss the safe storage of gas
 * 2) Describe the inspection and testing of HP cylinders
 * 3) Describe the handling of HP cylinders as well as the storage of bulk gas assets
 * 4) Describe the hazards, safe handling and use of oxygen
 * 5) Discuss the hazards of inert gases
 * 6) Discuss gas analysis and describe the various gas analysis techniques
 * 7) Explain the need for appropriate gas supplies including primary, secondary and emergency gas systems