8592 version 2
11-Dec-96
1 of 5
DIVING - OCCUPATIONAL
Complete underwater visual inspection
of dive site
level:
5
credit:
5
planned review date:
June 2002
sub-field:
Diving
purpose:
People credited with this unit standard are able to:
demonstrate underwater visual inspection skills; demonstrate
knowledge of corrosion protection systems; and record
visual inspection findings.
entry information:
Prerequisite: Unit 4417, Dive with surface supplied air
equipment, or demonstrate equivalent knowledge and skills.
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.
special notes:
1
Industry technical and safety criteria refer to the training
manuals and/or codes of practice of the training
agencies approved by the Dive Industry Training
Organisation.
 New Zealand Qualifications Authority 2016
8592 version 2
11-Dec-96
2 of 5
DIVING - OCCUPATIONAL
Complete underwater visual inspection
of dive site
2
All workplace diving practice must comply with the
requirements of the Health and Safety in Employment
Act, 1992 (HSE) and subsequent regulations relating to
Occupational Diving. All practice must also comply with
Accident Rehabilitation and Compensation Insurance
Act, 1992 (ARCI) and Occupational Safety and Health
(OSH) guidelines.
3
A list of national and international regulations to be
adhered to in offshore dive operations is available from
the
Dive
Industry
Training
Organisation
19 Argyle Avenue, Palmerston North.
4
A list of the current regulations relating to first aid
training for supervisors of surface supplied diving
operations using compressed air. is available from the
Dive Industry Training Organisation 19 Argyle Avenue,
Palmerston North.
 New Zealand Qualifications Authority 2016
8592 version 2
11-Dec-96
3 of 5
DIVING - OCCUPATIONAL
Complete underwater visual inspection
of dive site
Elements and Performance Criteria
element 1
Demonstrate underwater visual inspection skills.
performance criteria
1.1
Site preparation meets industry technical and safety criteria.
Range:
marine growth removal, cleaning, surface analysis.
1.2
Description of structure identifies location of likely points of deterioration and
defects.
1.3
Inspection of structures identifies deterioration and location of common types of
defects.
1.4
Underwater measurements and dimensional checking of defects meet
engineering practice requirements and industry technical and safety criteria.
1.5
Use of digital wall thickness meters meets industry technical and safety criteria.
element 2
Demonstrate knowledge of corrosion protection systems.
performance criteria
2.1
Description of typical instances of corrosion identifies causes of corrosion and
methods of reduction and prevention of corrosion.
 New Zealand Qualifications Authority 2016
8592 version 2
11-Dec-96
4 of 5
DIVING - OCCUPATIONAL
Complete underwater visual inspection
of dive site
2.2
Explanation of sacrificial anode and impressed current systems identifies
modes of deterioration and inspection safety requirements.
2.3
Calibration of instruments allows for measurement of deterioration by corrosion.
2.4
The effects of corrosive debris are minimised while inspecting in an
environment with corrosive deterioration.
2.5
Visual inspection of protective coatings including Monel wraps identifies
corrosion.
element 3
Record visual inspection findings.
performance criteria
3.1
Commentary by diver during inspection ensures that inspection of results are
clearly communicated to inspection supervisor.
3.2
Light placement allows for optimum photogrammetry results.
3.3
Use of hand held and head mounted still camera and closed circuit television
provides useful detail of inspection site.
Range:
3.4
size references, fixed repeatable reference points, structural
marking.
Deployment, use, and maintenance of photogrammetry equipment meet
manufacturer’s specifications and industry technical and safety criteria.
 New Zealand Qualifications Authority 2016
8592 version 2
11-Dec-96
5 of 5
DIVING - OCCUPATIONAL
Complete underwater visual inspection
of dive site
3.5
Documentation and records of inspection meet industry technical and safety
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