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12521 version 4
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Demonstrate knowledge of pressure in a gas distribution network
Level
2
Credits
4
Purpose
People credited with this unit standard are able to demonstrate knowledge of
gas pressure and its principles, and demonstrate knowledge of gas pressure
in a gas distribution network system.
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
Open.
Accreditation
Evaluation of documentation by NZQA.
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
The main reference for this unit standard is the current version of NZS 5258:2003 Gas
distribution networks available at http://www.standards.co.nz/.
Elements and performance criteria
Element 1
Demonstrate knowledge of gas pressure and its principles.
Performance criteria
1.1
Types of gas pressure are defined in terms of gauge, atmospheric and
absolute.
 New Zealand Qualifications Authority 2016
12521 version 4
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1.2
Units of pressure and the relationship between them are defined.
Range
metric, imperial.
Element 2
Demonstrate knowledge of gas pressure in a gas distribution network system.
Performance criteria
2.1
Pressure ranges in a gas network are defined in accordance with NZS 5258
and specific company operating pressures.
Range
2.2
low, medium, intermediate.
Devices for the measurement of gas pressure are described in accordance with
company procedures.
Range
water gauge, bourdon tube gauge, pressure recorder;
may include but is not limited to – data logger, digital devices,
pressure transducers, mercury gauges, calibrators.
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)
[email protected] if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016
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