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Elements and Performance Criteria

  1. Operate an HeO2 compressor/hand-booster pump
  2. Conduct dive operations

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least four separate dives, with diver diving to a depth not greater than 60 metres using closed-circuit breathing apparatus (CCBA) (HeO2) in open water (oceans, seas, lakes and rivers) and include:

applying relevant industry standards, and organisational policies and procedures

conducting CCBA (HeO2) dive operations:

in open water to a maximum depth of 60 metres during the day and at night

in water time of 60 minutes

with a total accrued sub-surface time of 0–60 minutes

in a range of sub-surface conditions including:

a range of surface and sub-surface hazards

current (0–2 knots)

temperature (0 degrees +)

visibility (0 metre +)

conducting unconscious companion diver drills in accordance with dive plan

identifying changes in divers, including distress and illness at depth

inspecting and preparing CCBA (HeO2) equipment and gauges monitoring CCBA (HeO2) equipment and gauges

operating an HeO2 compressor/handbooster pump in accordance with manufacturer specifications.


Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

CCBA (HeO2) characteristics and limitations

CCBA (HeO2) dive equipment specifications and limitations

dive physics

dive physiology and medicine including:

heat and cold illnesses

compression illnesses

decompression illnesses

diving descent and ascent techniques

general diving safety awareness including:

diving in harbours

diving in tidal waters, currents and tides

diving on and/or near a ship’s bottom

lost/separated

entrapment/foul lines

marine animal threats

pollution/weeds

working in confined spaces

hazards of Heliox

relevant diving safety awareness

relevant industry standards, and organisational policies and procedures

safe operating ranges for airsupplies

standby diver responsibilities.