NZQA registered unit standard
Title
23243 version 2
Page 1 of 3
Identify and explain the causes and prevention of material
deterioration in the marine environment
Level
4
Purpose
Credits
10
People credited with this unit standard are able to explain:
environmental effects on material deterioration used in the
marine environment; metal corrosion and prevention in the
marine environment; timber deterioration and its prevention in
the marine environment; and manufactured material
deterioration and its prevention in the marine environment.
This unit standard is designed to raise awareness of material
deterioration so that it can be identified at an early stage, and is
applicable to all sectors of the boating industry. It is also
applicable to recreational boat users.
Classification
Boating Industries > Boatbuilding
Available grade
Achieved
Explanatory notes
1
Definitions
Deterioration refers to material corrosion, corruption, degradation, and damage.
FRC – fibre reinforced composite, encompasses GRP (glass reinforced plastic).
FRC may be laminated from any combination of fibres, cores, and resins including
polyester, vinylester and epoxy resins.
Outcomes and evidence requirements
Outcome 1
Explain environmental effects on material deterioration used in the marine environment.
Range
environmental factors include - salt, wind, damp, movement, sun, fungus.
materials include - steel, alloys, bronzes, plastics, FRC, timber, glues, and
resins.
Evidence requirements
1.1
The impact of marine environment deterioration factors on materials used in
boat building are described.
NZ Marine and Composites Industry Training
Organisation
SSB Code 101812
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
23243 version 2
Page 2 of 3
Outcome 2
Explain metal corrosion and prevention in the marine environment.
Evidence requirements
2.1
Corrosion is described in relation to the galvanic series.
2.2
Fatigue in metal is described.
Range
2.3
aluminium, steel.
Metal deterioration prevention methods are explained.
Range
evidence of 6 methods is required.
Outcome 3
Explain timber deterioration and its prevention in the marine environment.
Evidence requirements
3.1
Deterioration of timber and its prevention are explained.
deterioration includes – fungal, worm, delamination, aging effects
timbers include - heart wood, sapwood, treated timber, sealing
timber, encapsulating timber, timber species resistance.
Range
Outcome 4
Explain manufactured material deterioration and its prevention in the marine environment.
Range
plastics, nylons, acetal, rubbers, polyester resins, high cure temperature
composites.
Evidence requirements
4.1
Deterioration of manufactured materials and its prevention are explained.
Planned review date
31 December 2020
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
27 October 2006
31 December 2018
Review
2
15 October 2015
N/A
NZ Marine and Composites Industry Training
Organisation
SSB Code 101812
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
23243 version 2
Page 3 of 3
Consent and Moderation Requirements (CMR) reference
0136
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the CMRs. The CMR also includes useful information about
special requirements for organisations wishing to develop education and training
programmes, such as minimum qualifications for tutors and assessors, and special
resource requirements.
Comments on this unit standard
Please contact the New Zealand Marine and Composites Industry Training Organisation
training@bia.org.nz if you wish to suggest changes to the content of this unit standard.
NZ Marine and Composites Industry Training
Organisation
SSB Code 101812
 New Zealand Qualifications Authority 2016