Elements and Performance Criteria

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, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Relevant government regulations, licensing and other compliance requirements may include:
business or workplace operations, policies and practices
maritime and occupational diving operations, and safety at sea
OHS hazard identification, risk assessment and control
OHS guidelines may include:
appropriate workplace provision of first aid kits
codes of practice, regulations and/or guidance notes which may apply in a jurisdiction or industry sector
enterprise-specific OHS procedures, policies or standards
hazard and risk assessment of workplace, maintenance activities and control measures
induction or training of staff in relevant OHS procedures and/or requirements to allow them to carry out their duties in a safe manner
OHS training register
safe systems and procedures for outdoor work, including protection from solar radiation, confined space entry and the protection of people in the workplace
systems and procedures for the safe maintenance of property, machinery and equipment, including hydraulics and exposed moving parts
the appropriate use, maintenance and storage of PPE
PPE may include.
buoyancy vest or personal floatation device (PFD)
personal locator beacon or Emergency Position Indicating Radio Beacon (EPIRB)
protective outdoor clothing for tropical conditions
sun protection (e.g. sun hat, sunscreen and sunglasses)
Compression chamber may include:
single-lock
transportable
twin-lock
Limitations may include:
equipment backup
gas supplies:
oxygen
air
mixed gases
layout
size
transportability
Therapeutic tables may include:
Royal Navy
US Navy
Hazards may include:
anxiety
claustrophobia
hallucinations
loss of dexterity
narcosis
overconfidence
panic
task fixation
Risk control may include:
briefing
emergency procedures
qualified diver
supervisor

EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment

Critical aspects for assessment evidence required to demonstrate competence in this unit
Assessment must confirm the ability to:
undertake a chamber dive to 50 metres using a built-in breathing system
perform appropriate tests relevant to chamber dives

Assessment must confirm knowledge of:
compression chambers
nitrogen narcosis
safety procedures
Context of and specific resources for assessment
Assessment is to be conducted at the workplace or in a simulated work environment.

Resources may include:
compression chamber with built-in breathing system and other associated equipment
communication system
Method of assessment
The following assessment methods are suggested:
observation of practical demonstration
written or oral short-answer testing
practical exercises
project work
Guidance information for assessment
This unit may be assessed holistically with other diving units.