Improving the safety of gas appliances and installations

gas burner

We have published and reconfirmed several gas standards that will improve the safety of many gas appliances.

These include portable gas appliances, gas space heating appliances, domestic outdoor gas barbecues, decorative gas log and other fuel effect appliances, and existing gas installations.

NZS 5266:2014 – gas appliances that aren’t part of a recognised certification regime

NZS 5266:2014 Safety of gas appliances ensures gas appliances supplied to the New Zealand market meet essential safety and compliance requirements. It aims to protect people, domestic animals and property from fire, explosion, release of noxious gases, and physical injuries from gas appliances.

The standard specifies the essential safety requirements for gas appliances and fittings that must be certified or endorsed before being sold in New Zealand. An audit checklist has been included to provide guidance for achieving compliance.

NZS 5266 is used by approved practitioners to assess the safety of gas appliances, particularly specialised appliances and appliances that are produced in small numbers only. It covers the essential safety requirements for all gas appliances in New Zealand that aren’t part of a recognised certification regime.

Standards New Zealand first published NZS 5266 in December 2012 as an interim standard for a year. NZS 5266 has now been published as a full standard with the following changes:

  • a minor change to Appendix A 2.1 for gas appliance testing using LPG line gas
  • a small change to item 27 in the checklist in Appendix D1 by removing reference to NZ limit gases and simply requiring that ‘combustion tests are satisfactory’.

These changes don’t alter the overall purpose, scope or technical content of the standard.

NZS 5266:2014 supersedes NZS 5266(Int):2012.

NZS 5256:2014 – portable and uninstalled gas appliances

NZS 5256:2014 Verification of the safety of gas appliances provides procedures to determine that a gas appliance is safe to use. The standard provides specific information to verify the safety of portable gas appliances and gas appliances that are not yet part of an installation. It includes a checklist and appropriate ways to achieve and demonstrate compliance with regulations.

Manufacturers, importers, and installers use the standard to assess the safety of gas appliances against the technical requirements of NZS 5266 and NZS/AS 3645, and applying the principles of NZS 5257.1.

  • NZS 5266:2014 Safety of gas appliances ensures gas appliances supplied to the New Zealand market meet essential safety and compliance requirements.
  • NZS/AS 3645.1:2012 Essential requirements for gas equipment – Part 1: Essential safety covers the essential safety requirements for all gas appliances in New Zealand that are produced in volume.
  • NZS 5257.1:2004 Gas industry audit protocol forms part of a Compliance Audit Protocol Framework. This framework helps organisations in the gas industry involved in transmission, distribution, retail, installation, and appliances, to access best-practice safety, measurement, and quality procedures and systems.

Standards New Zealand first published NZS 5256 as an interim standard in 2013. NZS 5256 is now published as a full standard without any change to its purpose, scope, or technical content.

NZS 5256:2014 supersedes NZS 5256(Int):2013.

Gas space heating appliances, domestic outdoor gas barbecues, and decorative gas log and other fuel effect appliances

Standards New Zealand published three interim standards in 2013 for a year. The three interim standards, which were adopted and adapted from Australian standards AS 4553, AS 4557, and AS 4558 are:

  • NZS AS 4553(Int).1&2:2013 Gas space heating appliances – Part 1: Essential safety, and Part 2: Efficiency and emissions. Part 1 covers essential safety and compliance requirements and Part 2 covers efficiency and other non-safety requirements
  • NZS AS 4557(Int):2013 Domestic outdoor gas barbecues, which covers essential safety and compliance requirements
  • NZS AS 4558(Int):2013 Decorative gas log and other fuel effect appliances, which covers essential safety and compliance requirements.

Standards Australia has now started a project to develop a new series of standards to replace AS 4553, AS 4557, and AS 4558. New Zealand stakeholders are participating in this project, which will develop the new series of standards as parts of AS/NZS 5263 over the next few years.

As a result, Standards New Zealand has now extended the interim period for NZS AS 4553(Int).1&2:2013, NZS AS 4557(Int):2013, and NZS AS 4558(Int):2013 until 2016 while the relevant parts of AS/NZS 5263 are developed. This will provide appropriate coverage for such gas appliances until the new joint standard is published.

No amendments are proposed to the existing interim standards or their titles, only an extension to the period that they will apply.

The prefix ‘NZS/AS’ has been changed to ‘NZS AS’ to indicate that the standard is adopted from an Australian standard and to avoid confusion with the prefix used for joint Australian/New Zealand standards.

NZS 5255:2014 – existing gas installations

NZS 5255:2014 Safety verification of existing gas installations provides procedures to assess the safety and report the condition of existing gas installations. Manufacturers, importers, and installers use the standard to assess the safety of installations against the performance requirements of AS/NZS 5601 Parts 1 and 2 and the principles of NZS 5257.1.

  • AS/NZS 5601.1:2013 Gas installations – Part 1: General installations covers the design and construction of fixed gas installations associated with the use or intended use of fuel gases such as natural gas, LP Gas or biogas.
  • AS/NZS 5601.2:2013 Gas installations – Part 2: LP Gas installations in caravans and boats for non-propulsive purposes covers gas installations in caravans and boats.
  • NZS 5257.1:2004 Gas industry audit protocol forms part of a Compliance Audit Protocol Framework. This framework helps organisations in the gas industry involved in transmission, distribution, retail, installation, and appliances, to access best-practice safety, measurement, and quality procedures and systems.

NZS 5255 provides specific information to assess the safety of existing gas installations, including checklists and appropriate ways to achieve and demonstrate compliance.

Standards New Zealand initially published NZS 5255 as an interim standard in 2011. NZS 5255 has now been published as a full standard without any change to its purpose, scope, or technical content.

NZS 5255 supersedes NZS 5255(Int):2013.

 

Buy NZS 5266:2014 Buy NZS 5256:2014 Buy NZS AS 4553(Int).1&.2:2013 Buy NZS 5255:2014 Buy NZS AS 4557(Int):2013 Buy NZS AS 4558(Int):2013

Published in energy.