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Title / Demonstrate knowledge of a gas distribution network
Level / 2 / Credits / 4
Purpose / People credited with this unit standard are able to describe gas network system configuration, and describe the end use and supply requirements of a gas distribution network.
Classification / Gas Industry > GasNetwork Operations
Available grade / Achieved
Explanatory notes
The network does not include any piping downstream of the meter outlet or, where there is no gas measurement system, downstream of the custody transfer point.
Outcomes and evidence requirements
Outcome 1
Describe gas network system configuration.
Evidence requirements
1.1A gas network is described in terms of the system used to control, supply and regulate gas flow and pressure.
Rangegate station, pressure reducing stations, metering and regulating stations, pipework.
1.2A gas network is described in terms of the systems and equipment used for the safe distribution of gas.
Rangesystem – cathodic protection, odorisation;
equipment – valves, relief, filters.
Outcome 2
Describe the end use and supply requirements of a gas distribution network.
Evidence requirements
2.1A gas distribution network is described in terms of end use.
Rangecommercial, industrial, residential.
2.2A gas distribution network is described in terms of supply requirements.
Rangeflow, pressure, capacity, continuity, reliability, quality, safety.
Replacement information / This unit standard, unit standard 12521, unit standard 19541 and unit standard 19542were replaced by unit standard 30370.This unit standard is expiring. Assessment against the unit standard must take place by the last date for assessments set out below.
Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for AssessmentRegistration / 1 / 19 November 1997 / 31 December 2020
Revision / 2 / 3 August 2000 / 31 December 2020
Review / 3 / 22 October 2002 / 31 December 2020
Review / 4 / 20 November 2006 / 31 December 2020
Review / 5 / 17 August 2017 / 31 December 2020
Consent and Moderation Requirements (CMR) reference / 0014
This CMR can be accessed at
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 Consent and Moderation Requirements (CMR). 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.
MITO New Zealand IncorporatedSSB Code 101542 / New Zealand Qualifications Authority 2018