20590 version 2
Page 1 of 4
Level 3
Credits 3
Purpose People credited with this unit standard are able to locate and identify procedures, documentation, and equipment for testing gas for odour level and concentration; test gas for odour level; test gas for odorant concentration, and complete documentation and reporting requirements.
Subfield Gas Industry
Domain
Status
Status date
Date version published
Planned review date
Entry information
Replacement information
Accreditation
Gas Network Operations
Registered
26 January 2004
20 November 2006
31 December 2011
Open.
This unit standard replaced unit standard 9573.
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 is not limited to workplace assessment. The range statements relate to site specific equipment, procedures and processes.
2 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).

New Zealand Qualifications Authority 2020

20590 version 2
Page 2 of 4
3 The following documents and their subsequent amendments must be complied with:
Gas Act 1992;
Hazardous Substances and New Organisms Act 1996;
Health and Safety in Employment Act 1992;
Resource Management Act 1991;
Gas Regulations 1993;
NZS 5258:2003 Gas distribution networks available at http://www.standards.co.nz/;
NZS 5263:2003 Gas detection and odorization available at http://www.standards.co.nz/; equipment manufacturer’s instructions.
4 For the purpose of this unit standard the term ‘gas’ refers to natural gas; liquefied petroleum gas (LPG); tempered liquefied petroleum gas (TLPG), and biogas.
5 Company procedures means the documented methods for performing work activities and include the health and safety, environmental, and quality management requirements. They may refer to manuals, codes of practice, or policy statements.
Element 1
Locate and identify procedures, documentation and equipment for testing gas for odour level and odorant concentration.
Performance criteria
1.1 Company procedures for testing gas for odour level and odorant concentration are located and interpreted in relation to specified job requirements.
1.2 Equipment documentation and information are located and interpreted in accordance with site requirements and company procedures.
Range manufacturer’s instructions, equipment operating manuals, maintenance procedures, test certificates, calibration labels.
1.3 Potential environmental and safety hazards are identified in accordance with company procedures.
1.4 Odour level and odorant concentration testing equipment, components, and materials are identified and described in terms of type and function.
Range type may include but is not limited to – odorometer, odorator, vacuum pump test tubes, manual or automatic pumps, sample vessel, sample lines and connections; function – odour level, odorant concentration.
1.5 Equipment is described in terms of potential hazards of incorrect application and operation, and the steps to avoid these hazards are described in accordance with company procedures.

New Zealand Qualifications Authority 2020

20590 version 2
Page 3 of 4
Element 2
Test gas for odour level.
Performance criteria
2.1 Odour level testing equipment is selected for conditions and site application in accordance with company procedures.
2.2 Equipment is operated in accordance with company procedures and manufacturer's instructions.
2.3
Element 3
Safety procedures relating to odour testing techniques are demonstrated in accordance with site safety requirements.
Test gas for odorant concentration.
Performance criteria
3.1 Odorant concentration testing equipment is selected for conditions and site application in accordance with company procedures.
3.2 Equipment is operated in accordance with company procedures and manufacturer’s instructions.
3.3
Element 4
Safety procedures relating to odour testing techniques are demonstrated in accordance to site safety requirements.
Complete documentation and reporting requirements.
Performance criteria
4.1 Information about gas odorant is communicated in accordance with company procedures.
Range may include but is not limited to – special conditions, test results, additional works.
4.2 Records and documents are completed and processed 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.

New Zealand Qualifications Authority 2020

20590 version 2
Page 4 of 4
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 2020