CHAPTER 10 Nitrogen-Oxygen Diving Operations
FLEET TRAINING FOR NITROX
A Master Diver shall conduct training for NITROX diving prior to conducting
NITROX diving operations. Actual NITROX dives are not required for this
training. The following are the minimum training topics to be covered:
Pulmonary and CNS oxygen toxicity associated with NITROX diving.
EAD tables and their association with the Navy air tables.
Safe handling of NITROX mixtures.
NITROX Charging and Mixing Technicians must be trained on the following
Oxygen handling safety.
Oxygen analysis equipment.
NITROX mixing techniques.
NITROX cleaning requirements (MIL-STD-1330 Series).
NITROX DIVING EQUIPMENT
NITROX diving can be performed using a variety of equipment that can be broken
down into two general categories: surface-supplied or closed- and open-circuit
scuba. Closed-circuit scuba apparatus is discussed in Chapter 17.
Open-Circuit Scuba Systems. Open-circuit scuba systems for NITROX diving
are identical to air scuba systems with one exception: the scuba bottles are filled
with NITROX (nitrogen-oxygen) rather than air. There are specific regulators
authorized for NITROX diving, which are identified on the ANU list. These regu-
lators have been tested to confirm their compatibility with the higher oxygen
percentages encountered with NITROX diving.
Regulators. Scuba regulators designated for NITROX use should be cleaned to
the standards of MIL-STD-1330. Once designated for NITROX use and cleaned,
the regulators should be maintained to the level of cleanliness outlined in MIL-