12507 version 4
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Use gas leakage detection equipment on reticulated gas networks
Level
3
Credits
5
Purpose
People credited with this unit standard are able to: locate and identify
procedures, documentation, and equipment for using gas leakage detection
equipment; use gas leakage detection equipment; and interpret and record
gas test readings.
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
Prerequisite: Unit 17690, Identify potential hazards of
and safety precautions for working with live reticulated
gas, 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.
2
The current version of the following documents must be complied with:
Gas Act 1992;
Health and Safety in Employment Act 1992;
Gas Regulations 1993;
manufacturer’s instructions.
 New Zealand Qualifications Authority 2016
12507 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
The candidate will be assessed on enterprise-specific equipment that may include
but is not limited to thermal conductivity detector (eg Gasco seeker), flame ionisation
monitor (FIM).
5
Definitions
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.
LEL stands for lower explosive limit.
Elements and performance criteria
Element 1
Locate and identify procedures, documentation, and equipment for using gas leakage
detection equipment.
Performance criteria
1.1
Company procedures for using gas leakage detection equipment are located
and interpreted in terms of general use.
1.2
Potential environmental and safety hazards are identified in accordance with
company procedures.
1.3
Equipment, components, and materials for using gas leakage detection
equipment are identified and described in terms of type and function.
Range
1.4
type may include – pumps, hoses, gauges, control systems, water
traps, hydrogen cylinders, recorders, probes, aspirators, gas
scale, batteries, filters, meter scale;
function may include – 0-10% LEL, 0-100% LEL, 0-100% gas,
zero, parts per million.
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
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Element 2
Use gas leakage detection equipment.
Performance criteria
2.1
Gas leakage detection equipment is checked for calibration to primary
standards in accordance with manufacturer’s instructions and/or company
procedures.
Range
calibration label, calibration gas used, tag, certificate, currency.
2.2
Function and test in relation to relevant equipment codes is identified in
accordance with company procedures.
2.3
Gas leakage detection equipment is operated in accordance with company
procedures and manufacturer’s instructions.
2.4
Equipment safety procedures are observed in accordance with company
procedures and/or manufacturer’s instructions.
Element 3
Interpret and record gas test readings.
Performance criteria
3.1
Test readings are interpreted in terms of explosive limits.
3.2
Test readings are interpreted in terms of 100% gas.
3.3
Test readings are recorded 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.
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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