NZQA expiringunit standard / 25611 version 2
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Title / Demonstrate knowledge of stopple equipment and operations in a gas distribution network
Level / 3 / Credits / 3
Purpose / People credited with this unit standard are able to demonstrate knowledge of stopple and ancillary equipment, and describe stopple operations.
Classification / Gas Industry > GasNetwork Construction
Available grade / Achieved
1This unit standard is intended for, but not limited to, workplace assessment. The range statements relate to enterprise specific equipment, procedures, and processes.
2The current version of the following documents must be complied with:
Gas Act 1992;
Health and Safety in Employment Act 1992;
Gas Regulations 1993;
NZS 5258:2003 Gas distribution networks available at .
3All work practices must comply with regulations and codes of practice pertaining to the gas industry.
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.
Outcomes and evidence requirements
Demonstrate knowledge of stopple and ancillary equipment.
1.1Stopple equipment is described in terms of its function.
Rangemay include is but not limited to – TD Williamson, Mueller, Black Hawk, Shortstop 60.
1.2Ancillary equipment is identified and described in terms of its function.
Rangemay include but is not limited to – nitrogen bottle, compressor, hoses, fittings, plugs, flow stopping bags, valves, adapters, ultrasonic device, radiographs, crack detectors, gas detection equipment, fire extinguisher, breathing apparatus, lifting equipment.
Describe stopple operations.
2.1Stopple equipment is described in terms of principles of operation.
2.2Stopple operations are described in terms of hazards of incorrect application of equipment, and the steps to avoid the hazards are described in accordance with company procedures.Replacement information / This unit standard and unit standard 25607were replaced by unit standard 30371.
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Status information and last date for assessment for superseded versionsProcess / Version / Date / Last Date for Assessment
Registration / 1 / 21 May 2010 / 31 December 2020
Review / 2 / 17 August 2017 / 31 December 2020
Consent and Moderation Requirements (CMR) reference / 0014
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
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 Incorporated
SSB Code 101542 / New Zealand Qualifications Authority 2019