4431 version 2
28-Jun-16
1 of 4
DIVING - OCCUPATIONAL
Respond to decompression problems
resulting from deep bounce or
saturation dives
level:
7
credit:
6
planned review date:
June 2002
sub-field:
Diving
purpose:
People credited with this unit standard are able to
demonstrate knowledge of the physiology of hyperbaric
diving and administer first aid, and demonstrate a knowledge
of oxy-helium decompression and related procedures.
entry information:
Prerequisites: Unit 6401, Provide first aid and Unit 6402,
Provide resuscitation level 2, or demonstrate equivalent
skills and knowledge; and hold a current Medical Clearance
to dive and occupational-specific certificate of competence.
accreditation option:
Evaluation of documentation and visit by NZQA and
industry.
moderation option:
A centrally established and directed national moderation
system has been set up by the Dive Industry Training
Organisation.
 New Zealand Qualifications Authority 2016
4431 version 2
28-Jun-16
2 of 4
DIVING - OCCUPATIONAL
Respond to decompression problems
resulting from deep bounce or
saturation dives
special notes:
1
Industry criteria refer to diving practice complying with
the requirements of the Health and Safety in
Employment Act 1992 and subsequent regulations
relating to Occupational Diving; and comply with the
theory and practice requirements of the British Health
and Safety Executive (HSE) 1990 to ensure the
international standard is maintained. All practice also
complies with Accident Rehabilitation & Compensation
Insurance Corporation and Occupational Safety and
Health (OSH) guidelines.
2
First aid practice and techniques will use simulated
emergency exercises.
Elements and Performance Criteria
element 1
Demonstrate knowledge of the physiology of hyperbaric diving and administer first aid.
performance criteria
1.1
Description of the effects of high partial pressures of gases on the diver meets
industry criteria.
Range:
High Pressure Nervous Syndrome (HPNS), thermal conductivity
of helium, high oxygen partial pressures.
 New Zealand Qualifications Authority 2016
4431 version 2
28-Jun-16
3 of 4
DIVING - OCCUPATIONAL
Respond to decompression problems
resulting from deep bounce or
saturation dives
1.2
Assistance given to transfer a patient from a diving bell to a decompression
chamber meets industry criteria.
Range:
1.3
Instructions of a medical practitioner are followed when caring for patient during
saturation and/or decompression to meet industry criteria.
Range:
1.4
overall visual check, monitor vital signs, neurological tests, report
results and temperature, hygiene standards.
Signs and symptoms of deep diving related conditions are identified and
treated to meet industry criteria.
Range:
1.5
injured person, unconscious person.
High Pressure Nervous Syndrome (HPNS), hypothermia,
hyperthermia, decompression sickness, gas embolism, pulmonary
barotrauma, compression arthralgia.
Symptoms and results of basic examinations are reported to a medically
trained person.
element 2
Demonstrate knowledge of oxy-helium decompression and related procedures.
performance criteria
2.1
Decompression schedules are selected for a range of dives to meet industry
criteria.
Range:
bounce dive,
excursions.
saturation
dive,
therapeutic
decompression,
 New Zealand Qualifications Authority 2016
4431 version 2
28-Jun-16
4 of 4
DIVING - OCCUPATIONAL
Respond to decompression problems
resulting from deep bounce or
saturation dives
2.2
Assistance given in decompression operations meets industry criteria.
Range:
regulate chamber pressure on instruction, operate BIBS, gas
mixture selection on instruction, environmental condition
maintenance.
2.3
Symptoms and causes of hyperoxia and/or hypoxia are identified to industry
criteria.
2.4
Knowledge of back-up decompression procedures meets industry criteria.
Comments to:
Dive Industry Training Organisation
Unit Standard Revision
PO Box 160
WELLINGTON
by June 2002.
Please Note:
Providers must be accredited by the Qualifications Authority
before they can offer programmes of education and training
assessed against unit standards.
Accredited providers assessing against unit standards must
engage with the moderation system that applies to those unit
standards. [Please refer to relevant Plan ref: 0180]
 New Zealand Qualifications Authority 2016