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Elements and Performance Criteria

Required Skills

This describes the essential skills and knowledge and their level required for this unit

Required Skills

conduct buddy breathing

conduct ditching drills

conduct lost buddy drills

conduct unconscious companion diver drills

conduct standby diver drills

fit and check CCBA HeO

identify distress and illness in others at depth

inspect and prepare CCBA HeO

monitor CCBA HeO equipment and gauges

recover and clear mask and mouthpiece

refurbish CCBA HeO postdive

Required Knowledge

CCBA HeO dive equipment characteristics and limitations

CCBA HeO characteristics and limitations

dive physiology and medicine

general occupationaldiving safety awareness

hazards of Heliox

marine animal threats

relevant references and Australian Standards

safe operating ranges for airsupplies

standby diver responsibilities

Evidence Required

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessment must confirm the ability to

arrange for others to check equipment

conduct inwater checks

handle nonfunctional equipment items

prepare equipment for the dive including charging of cylinders

maintain equipment during the dive

refurbish equipment postdive

recover and clear mask and mouthpiece

safely enter and exit the water appropriate to the launch platform equipment and conditions

switch from primary to the reserve air system

implement contingency and emergency drills such as

ditching drills

buddy breathing

unconscious companion diver drills

HeOair standby diver midwater casualty handover drill

Consistency in performance

Competency will be demonstrated over a minimum of dives with the diver diving to a depth not greater than m using CCBA HeO in open water that includes the following requirements

oceans seas lakes and rivers

subsurface conditions

a range of surface and subsurface hazards

temperature degrees

visibility metre

Table below outlines the minimum dives required by this Unit of Competency

Between 060m

Total accrued subsurface time m

Total accrued sub-surface time (060m)

Context of and specific resources for assessment

Context of assessment

Competency will be assessed in the ocean over a range of oceanic diurnal and nocturnal environments supported by questioning on shore or aboard vessels

When practicable assessment should relate to the divers vocational focus

Specific resources for assessment

Access to complete range of CCBA HeO diving safety and accessory equipment

Guidance information for assessment

Information that will assist or guide assessment will be written during Phase II of the Review of the PUA Public Safety Training Package

Information that will assist or guide assessment will be written during Phase II of the Review of the PUA00 Public Safety Training Package.

Range Statement


The Range Statement relates to the Unit of Competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording in the Performance Criteria is detailed below.
Open water environment may include	Day or night Oceans, seas, lakes and rivers Sub-surface conditions: anchor drop zones current (0-2 knots) cathodic protection devices electrical cabling inlets and sonar/radio frequency hazards marine animal pipelines pollutants propellers/thrusters spiers and jetties surface and sub-surface hazards such as: temperature (0 degrees +) trapping hazards: beams culverts gates grottoes and caves intakes and out-falls nets safety, anchor and communications lines sewers sluices submerged ships, vehicles and structures visibility (0 metre +) vessel rocking and associated movement
CCBA (HeO2)may include	Counter-lung Emergency cylinder Facemask /mouthpiece HeO2 cylinder Scrubber material
Associated equipment may include	Hoses Pumps
Protective equipment may include	Gloves Goggles
Operator level maintenance may include	Checking existing pressure in cylinders with pressure gauge Conducting charging in (HeO2) clean environment Following correct charging procedure and charging rate operating high pressure charging panels
Dive contingencies may include	Buddy breathing Companion diver Flooded mask Fouled supply Hose blockage/choking Hose rupture Partial pressure anomalies Set to 40 bar Trouble drill