Industry standards/codes of practice
Recognised Codes of Practice for the use of gas and gas appliances recognised by the National Building Code include:
NZS 5258:2003 Gas Distribution Networks
This standard is divided into three parts and covers the design, construction and safe operation and maintenance of gas networks not exceeding 2000kpa.
- Part 1 deals with the elements required of a safe management system to ensure safety requirements are met for all stages of a gas distribution network systems life cycle.
- Part 2 covers the means of compliance with the safety obligations for design and construction of a gas network and covers the life cycle of the network including upgrades and extensions.
- Part 3 provides a means of compliance with safety obligations for the operation and maintenance, including repair, up-rating decommissioning and corrosion control, for a gas distribution network that complies with part 2.
NZS 5261:2003 Gas Installation
This standard contains the legal requirements and means of compliance for the design, installation and commissioning of gas installations. Included are sections for gas installation performance criteria and the means of compliance for small and large installations, with references for use in the design of specific appliances for commercial/industrial installations.
NZS 4219:1983 Specification for Seismic Resistance of Building Engineering Systems
This standard specifies requirements for the design, installation and restraint of engineering systems in buildings. Systems covered include tanks and vessels, flues and stacks, piping for water, steam, gas and fuel, ducting, heat producing appliances and electrical communication and control systems.
NZS 4220:1982 Code of Practice for Energy Conservation in Non-Residential Buildings
This standard offers guidance to building designers and operating staff on the targets for energy use and conservation for the design and operation of buildings.
NZS 5807: Part 2 1980 Identification of Contents of Piping, Conduit and Ducts
This standard defines safety colours, safety signs and other warning indications which will aid in prevention of accidents, indication of health hazards, and location and identification of first-aid and fire-fighting equipment. It also defines meaning and application of colours and other indications which are recommended for identification of pipes conveying fluids in liquid or gaseous conditions; and identification of conduit and ducting enclosing electric services. Makes provision for identification of contents of industrial gas cylinders.
NZS 5262:2003 Gas Appliance Safety
This standard contains essential safety requirements for all gas appliances used in New Zealand. It covers all gas appliances and components supplied with them, including those that also use another form of energy.
AS/NZS 2430 Classification of Hazardous Area
Provides examples of area classification and is based on the internationally accepted concept that recognises the different degrees of probability with which explosive (flammable) concentrations of flammable gas or vapour may arise in installations in terms of both the frequency of occurrence and the probable duration of existence on each occasion.
NZGCP 01:1993 Inspection, Testing and Certification of Gasfitting Work Done Under Supervision
This code stipulates the requirements for the inspection, testing and certification of gasfitting work done under supervision in New Zealand by people entitled to do gasfitting work. Guidelines are provided for non-qualified people who may perform gasfitting work under supervision of a craftsman gasfitter, registered gasfitters and craftsmen gasfitters.