12441 version 4
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Design an odorisation system in a gas distribution network
Level
5
Credits
6
Purpose
People credited with this unit standard are able to demonstrate knowledge of
odorisation systems used in a gas distribution network, and produce design
plans for gas odorant injection and storage systems.
Subfield
Gas Industry
Domain
Gas Network Planning and Development
Status
Registered
Status date
25 September 1997
Date version published
20 November 2006
Planned review date
31 December 2011
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
(MITO)
Accreditation and Moderation Action Plan (AMAP) reference
0114
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
This unit standard is intended for, but is not limited to, workplace assessment. The
range statements relate to enterprise specific equipment, procedures, and
processes.
2
The current version of the following documents must be complied with:
Health and Safety in Employment Act 1992;
Resource Management Act 1991;
NZ GCP3: New Zealand Gas Code of Practice for Odorisation (GCP3) available at
http://www.med.govt.nz/ers/gas/codes.html.
NZS 5258:2003 Gas distribution networks available at http://www.standards.co.nz/;
NZS 5259:2004 Gas measurement available at http://www.standards.co.nz/.
 New Zealand Qualifications Authority 2016
12441 version 4
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3
All work practices must comply with regulations and codes of practice pertaining to
the gas industry. A full list of applicable regulations and codes is available from the
NZ Motor Industry Training Organisation (Incorporated) (MITO).
4
Definition
Company procedures means the documented methods for performing work activities
and include health and safety, environmental, and quality management requirements.
They may refer to manuals, codes of practice, or policy statements.
Elements and performance criteria
Element 1
Demonstrate knowledge of odorisation systems used in a gas distribution network.
Performance criteria
1.1
Principles of operation of odorisation systems are explained in terms of industry
usage.
Range
bypass, injection.
1.2
The relevance of odorisation systems to functional performance, and security
requirements of gas networks are explained in terms of industry usage.
1.3
Equipment used for odorisation systems is described in terms of function and
industry usage.
Range
valves, pumps, storage vessels, pipework, safety systems,
instrumentation.
Element 2
Produce design plans for gas odorant injection and storage systems.
Performance criteria
2.1
Design plans and specifications for gas odorant systems are produced in
accordance with company procedures, NZS 5258, and NZ GCP3.
Range
2.2
statutory considerations, overall design requirements, construction
considerations, welding and jointing, strength and soundness
testers, commissioning and recommissioning, alterations to live
mains and services, corrosion protection, system monitoring,
maintenance and records.
Design plans for odorisation systems are prepared and include environmental
considerations in accordance with company procedures.
Range
aesthetics, disposal, life time of system, manufacturability,
compatibility with existing system, upgrade potential, security.
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12441 version 4
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2.3
Logistical requirements, including timetables for deliverables, are identified and
prepared in accordance with company procedures.
2.4
Produced design plans for gas odorant injection and storage systems are in the
agreed format and style in accordance with company procedures.
Range
locations layouts and routes, definitions and glossary of terms.
2.5
Produced design plans are documented and include current version number
and date produced in accordance with company procedures.
2.6
Produced design plans are filed and are available to authorised users in
accordance with company procedures.
Range
2.7
authorised users – customers, manufacturers, management,
technical experts.
Produced design plans for gas odorant injection and storage systems are
distributed to authorised personnel promptly on completion of design, and an
up-to-date register of specification holders is maintained in accordance with
company procedures.
Please note
Providers must be accredited by the Qualifications Authority, or an inter-institutional body
with delegated authority for quality assurance, before they can report credits from
assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by the Qualifications Authority before
they can register credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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 NZ Motor Industry Training Organisation (Incorporated) (MITO)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016