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Elements and Performance Criteria

  1. Apply knowledge of compression chamber theory when using a chamber
  2. Perform a compression chamber dive to 50 metres

Required Skills

Required skills

recognising symptoms and effects of nitrogen narcosis

performing postdive cleaning and maintenance

performing simple comprehension or dexterity tests

preparing a chamber prior to a dive

undertaking a chamber dive to metres using a builtin breathing system to breathe oxygen at a maximum depth of metres

undertaking a psychological test at the surface and at metres in a compression chamber

Literacy skills used for

performing comprehension or dexterity tests

Numeracy skills used for

performing comprehension or dexterity tests

Required knowledge

layout functions uses and limitations of compression chambers

safety procedures in relation to compression chambers

symptoms and effects of nitrogen narcosis

the effects of physiological and environmental changes on a person in a compression chamber

Evidence Required

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 metres using a builtin 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 builtin breathing system and other associated equipment

communication system

Method of assessment

The following assessment methods are suggested

observation of practical demonstration

written or oral shortanswer testing

practical exercises

project work

Guidance information for assessment

This unit may be assessed holistically with other diving units

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.