19556 version 2
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Assemble, install, test, and commission an advanced gas pressure
reducing and metering station
Level
4
Credits
15
Purpose
People credited with this unit standard are able to: locate and identify
advanced gas pressure reducing and metering station equipment,
documentation, and procedures for equipment assembly and station
installations; prepare site for installing an advanced gas pressure reducing
and metering station; assemble and install an advanced gas pressure
reducing and metering station; commission and test an advanced gas
pressure reducing and metering station; reinstate site; and complete
reporting and documentation.
Subfield
Gas Industry
Domain
Gas Network Operations
Status
Registered
Status date
20 November 2006
Date version published
20 November 2006
Planned review date
31 December 2011
Entry information
Prerequisites: Unit 19554, Demonstrate knowledge of
advanced gas pressure control equipment, and Unit
19555, Assemble, install, test, and commission a
standard gas pressure reducing and metering station; or
demonstrate equivalent knowledge and skills.
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 not limited to, workplace assessment. The
range statements relate to enterprise specific equipment, procedures, and
processes.
 New Zealand Qualifications Authority 2016
19556 version 2
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2
The current versions of the following documents must be complied with:
Health and Safety in Employment Act 1992;
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/.
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
Definitions
Advanced gas pressure reducing and metering stations include pilot-operated
regulators, and active monitor and automatic stream selection configurations.
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
Locate and identify advanced gas pressure reducing and metering station equipment,
documentation, and procedures for equipment assembly and station installations.
Performance criteria
1.1
Company procedures and documentation for the assembly and installation of
advanced pressure reducing stations, regulators, meters, and ancillary
equipment are located and interpreted in relation to specified job requirements.
Range
1.2
installation site specific, authorisation, manufacturer’s information,
test certificates, equipment operating manuals, safety procedures,
operating procedures.
Job instructions are confirmed in accordance with company procedures.
Range
location, condition, size, position, pressure settings.
1.3
Potential environmental and safety hazards are identified in accordance with
company procedures.
1.4
Equipment, components, and materials for installing and commissioning
advanced gas pressure reducing and metering stations are identified and
described in terms of type and function.
Range
1.5
may include but is not limited to – valves, pipe, filter, pipe
supports, regulator, meter, gaskets, bolts, gauges, test points,
paint, test equipment, tools, fittings.
Equipment is described in terms of potential hazards of incorrect application
and operation, and the steps to avoid them are described in accordance with
company procedures.
 New Zealand Qualifications Authority 2016
19556 version 2
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1.6
Resource requirements are identified and sourced in accordance with company
procedures.
Range
plant, tools, materials, documentation, system components,
personnel, communication equipment.
Element 2
Prepare site for installing an advanced gas pressure reducing and metering station.
Performance criteria
2.1
Safety hazards are identified, and isolated, removed, or minimised in
accordance with company procedures.
Range
2.2
may include – signage, barriers, personal protective equipment,
safe access and egress, gas escape, fire, explosion, asphyxiation,
other utilities, temporary traffic control, environmental protection,
excavations.
Installation equipment and materials are prepared, handled, and positioned in
accordance with company procedures and manufacturer’s instructions.
Element 3
Assemble and install an advanced gas pressure reducing and metering station.
Performance criteria
3.1
Assembly and installation of advanced pressure reducing station, regulators,
meters, and ancillary equipment comply with manufacturer's requirements and
company procedures.
Range
may include but is not limited to – site specific, lubrication,
calibration, structure, corrosion, relief valve setting, filters,
pressure differential, slam shut.
3.2
Installation equipment is used in accordance with company procedures and
manufacturer's instructions.
3.3
Components and component parts are fitted and adjusted in accordance with
manufacturer's instructions.
3.4
Assembly and installation comply with company safety procedures.
 New Zealand Qualifications Authority 2016
19556 version 2
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Element 4
Commission and test an advanced gas pressure reducing and metering station.
Performance criteria
4.1
Advanced gas pressure reducing and metering station is purged and
commissioned in accordance with company procedures, manufacturer’s
instructions and site requirements.
Range
4.2
includes but is not limited to – additional stream(s), relief valves,
regulators, pilot-operated regulators, meters, liaison, location,
pressure settings, functional tests, diagnosis.
Advanced gas pressure reducing and metering station is tested for soundness
and integrity in accordance with company procedures and manufacturer's
instructions.
Range
may include but is not limited to – pressure settings, soap test,
gauges, filters, reliefs, flow, temperature.
Element 5
Reinstate site.
Performance criteria
5.1
Equipment and materials left temporarily on site are stored safely and securely,
or arrangements are made for their collection in accordance with company
procedures.
5.2
Tools, equipment, and materials are removed from site in accordance with job
requirements and company procedures.
5.3
Worksite is reinstated and made safe in accordance with company procedures.
Element 6
Complete reporting and documentation.
Performance criteria
6.1
Information is communicated to other parties, both internal and external, in
accordance with company procedures.
Range
6.2
may include but is not limited to – special conditions, completion
notice, additional work.
Records and documents are completed and processed in accordance with
company procedures.
 New Zealand Qualifications Authority 2016
19556 version 2
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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