Gas Standards
Gas Technical Standards Committee (GTSC)
The GTSC's scope of work covers all aspects of the supply and usage of natural gas, liquefied petroleum gas (LPG), liquefied natural gas (LNG), renewable gas (biomethane, bio LPG) and hydrogen. The membership of the committee is composed of key stakeholders/collective bodies that provide an authoritative and representative voice or policy role in the gas sector. GTSC members contribute their knowledge and expertise on a voluntary basis and advises the NSAI on what Irish standards and Codes of Practice are necessary for products and processes used in the gas industry, with particular regard to safety. The GTSC also supports the development of European (CEN) and International (ISO) gas related standards.
The GTSC is made up of a Central Committee governing the 7 sub-committees that are listed below.
Latest News
August 2022
Invitation from CEN-CENELEC Sector Fora Joint Task Force ‘Hydrogen quality needs for industrial uses’ to complete survey on hydrogen quality in industrial applications:
Deadline: 13th October 2022
July 2022
NSAI's GTSC is calling for experts in Ireland to participate in standardisation in the area of installation and equipment for LNG.
For more detail on the call for experts, see below
June 2022
NSAI colleagues took part in an Institute of Engineering and Technology (IET) webinar titled 'How Standards and Industry can work together for a sustainable energy future'
This webinar focused on the existing NSAI Gas Technical Standards Committees and expanding into hydrogen, call for experts, hydrogen pre-normative research required and an overview of GTSC TC11 -Gas Quality Committee.
Speakers: Alice Hanly, GTSC Technical Secretary, NSAI, Niamh Conroy, Hydrogen Standardisation Expert, NSAI and Michael Crowley, GNI and Chairperson of NSAI GTSC TC11 Gas Quality
Link to recording of Webinar will be posted when available.
March 2022
NSAI's GTSC is calling for experts on the hydrogen quality needs of industrial users in Ireland.
For more detail on the call for experts, see below
Call for experts on the hydrogen quality needs of industrial users in Ireland
December 2021
The first NSAI hydrogen academic webinar was held on the 30th November 2021 highlighting the opportunities for our national academic research community to link up with standards development in the area of hydrogen and help bridge the standardisation gaps that exist. Research work undertaken in Ireland can have a real impact on the development of technical standards right across Europe.
Watch the NSAI hydrogen academic webinar
NSAI will continue engagement with new stakeholders across academic, government and industry sectors.
Contact Alice Hanly or Niamh Conroy if you have any questions or would like to participate in standards work.
June 2021
NSAI and Gas Networks Ireland started a two-year secondment to work on standardisation activities relating to hydrogen. Recognising the fuel as a relatively new area with great potential to be adopted nationwide, a Hydrogen Standardisation Expert was appointed.
Their role is to increase Ireland’s pool of knowledge relating to hydrogen standardisation, drawing on the widest possible panel of experts including Irish academia, think tanks and research bodies. Collaborating with NSAI’s counterparts across Europe, these experts will then work to create new and improved suite of hydrogen Standards.
Read Energy Ireland's Standards for climate action: Where green innovation meets policy (October 2021)
Register your interest through our online form Get Involved in Standards Development
Committee Member Login
Committee Members can login using the ISOlutions Portal
Get in Touch
For further information contact:
Alice Hanly, GTSC Technical Secretary
Direct +353 1 807 3880 | Email: Alice Hanly | LinkedIn
Niamh Conroy, Hydrogen Standardisation Expert
Email Niamh Conroy | LinkedIn
GTSC sub-committees
The GTSC Central Committee's role is to advise NSAI on technical and policy matters concerning Ireland’s membership of CEN and ISO, the formulation of Irish Standards and the establishment and maintenance of the GTSC sub-committees and working groups.
The membership of the central committee is comprised of representatives from Government Departments, Regulatory bodies, and the Chairs of each sub-committee.
WG 01 supports the coordination of Hydrogen standardisation related information to be raised at the relevant GTSC sub-committees and manages the resolution of resulting actions and gaps in standardisation.
WG 2 facilitates information sharing with a focus on industrial gas quality needs (including power generation) connected to gas infrastructure (i.e. TSO, DSO) and the impact on their processes if hydrogen is used for combustion in the future, as well as other technical information deemed useful for this group of experts.
WG 3 facilitates the collaboration among academic experts and allows experts to keep abreast of Hydrogen Pre-Normative Research and general standardisation updates relevant to academics involved in hydrogen research. It is envisaged that as the industry develops, there will be further webinars communicating pre-normative research required and as a result, membership for this e-committee should grow.
TC 1 supports the development of national and international standards in the areas of the distribution of natural gas, LPG, renewable gas (biomethane, bio LPG) and hydrogen up to 16 bar. This includes services, distribution, PE pipe and fittings, and regulators.
National standards developed by this committee include:
- I.S. 329, Gas distribution mains
- S.R. 12007-5, Installation of Gas Service Pipes
- I.S. 370, Colour code for buried plastics piping
- I.S. 822, Gas pressure regulating installations on service pipelines
Get the latest standards verisons on www.standards.ie
European and International Committees Mirrored
(with the addition of committees relating to hydrogen)
- CEN/TC 155 Plastics piping systems and ducting systems
- CEN/TC 234 Gas infrastructure
- CEN/TC 237 Gas meters
- CEN/CLC/JTC 006 Hydrogen in energy systems
- ISO/TC 138/SC 4 Plastics pipes and fittings for the supply of gaseous fuels
- ISO/TC 197 Hydrogen technologies
TC 2 supports the development of national and international standards in the areas of installations and appliances for natural gas, LPG and renewable gas (biomethane, bio LPG) and hydrogen in domestic and non-domestic premises.
National standards developed by this committee include:
- I.S. 813, Domestic gas installations Edition
- I.S. 820, Non-Domestic gas installations
- SWiFT 8, Specific requirements for electrical apparatus for the detection of Carbon Monoxide (CO) in domestic premises
Get the latest standards versions on www.standards.ie
European and International Committees Mirrored
(with the addition of committees relating to hydrogen)
TC 2 monitors and participates in relevant work within the following committees:
- CEN/TC 234 Gas Infrastructure
- CEN/TC 109 Central heating boilers using gaseous fuels
- CEN/TC 181 Dedicated liquefied petroleum gas appliances
- CEN/TC 49 Gas cooking appliances
- CEN/TC 58 Safety and control devices for burners and appliances burning gaseous or liquid fuels
- CEN/TC 62 Independent gas-fired space heaters
- CEN/CLC/JTC 006 Hydrogen in energy systems
- ISO/TC 197 Hydrogen technologies
Click the link CEN/TC to access details on: General / Structure / Work Programme / Published Standards. Enter the committee number in the field Search list:
Click on link ISO/TC to access details on: ISOTC Working Area / Published Standards / Standards Under Development. Scroll to find the TC you are interested in.
TC 5 supports the development of national and international standards in the areas of the transmission of natural gas, LPG, renewable gas (biomethane, bio LPG) and hydrogen through pipelines and pipeline installations from 16 bar upwards. This includes compressor stations.
National standards developed by this committee include:
- I.S. 328, Code of Practice for Gas Transmission Pipelines and Pipeline Installations
Get the latest standards versions on www.standards.ie
European and International Committees Mirrored
(with the addition of committees relating to hydrogen)
TC 5 monitors and participates in relevant work within the following committees:
- CEN/TC 234 Gas infrastructure
- CEN/CLC/JTC 6 Hydrogen in energy systems
- ISO/TC 067/SC 02 Pipeline transportation systems
- ISO/TC 197 Hydrogen technologies
Click the link CEN/TC to access details on: General / Structure / Work Programme / Published Standards. Enter the committee number in the field Search list:
Click on link ISO/TC to access details on: ISOTC Working Area / Published Standards / Standards Under Development. Scroll to find the TC you are interested in.
TC 6 supports the development of national and international standards in the areas of the use of CNG, LNG and hydrogen in vehicles and associated refuelling stations.
This excludes CNG, LNG and Hydrogen propulsion systems in vehicles.
European and International Committees Mirrored
(with the addition of committees relating to hydrogen and LNG)
TC 6 monitors and participates in relevant work within the following committees:
- CEN/TC 326 Natural Gas Vehicles - Fuelling and Operation
- CEN/TC 286 LPG equipment and accessories
- CEN/TC 268 Cryogenic vessels and specific hydrogen technologies applications
- CEN/CLC/JTC 006 Hydrogen in energy systems
- ISO/TC 197 Hydrogen technologies
Click the link CEN/TC to access details on: General / Structure / Work Programme / Published Standards. Enter the committee number in the field Search list:
Click on link ISO/TC to access details on: ISOTC Working Area / Published Standards / Standards Under Development. Scroll to find the TC you are interested in.
TC 8 supports the development of national and international standards in the area of LPG and LNG storage, LPG cylinder filling, LPG refuelling facilities and LNG onshore installations and equipment.
This excludes LNG and LPG propulsion systems in vehicles.
National standards developed by this committee include:
- I.S. 3213, Code of Practice for the Storage of LPG Cylinders and cartridges
- I.S. 3216, Code of practice – Bulk storage of Liquefied Petroleum Gas (LPG)
Get the latest standards versions on www.standards.ie
European and International Committees Mirrored
(with the addition of committees relating to LNG)
TC 8 monitors and participates in relevant work within the following committees:
- CEN/TC 268 Cryogenic vessels and specific hydrogen technologies applications
- CEN/TC 282 Installation and equipment for LNG
- CEN/TC 286 LPG equipment and accessories
- ISO/TC 067/SC 09 Liquefied natural gas installations and equipment
Click the link CEN/TC to access details on: General / Structure / Work Programme / Published Standards. Enter the committee number in the field Search list:
Click on link ISO/TC to access details on: ISOTC Working Area / Published Standards / Standards Under Development. Scroll to find the TC you are interested in.
TC 9 is the national mirror committee for CEN/TC 286 "LPG equipment and accessories
European and International Committees Mirrored
TC 9 monitors and participates in relevant work within the following committees:
- CEN/TC 23/SC 1 Cylinder design
- CEN/TC 23/SC 3 Operational requirements
- CEN/TC 286 LPG equipment and accessories
- CEN/TC 296 Tanks for the transport of dangerous goods
- ISO/TC 058/SC 02 Gas cylinders - Cylinder fittings
- ISO/TC 058/SC 04 Gas cylinders - Operational requirements for gas cylinders
Click the link CEN/TC to access details on: General / Structure / Work Programme / Published Standards. Enter the committee number in the field Search list:
Click on link ISO/TC to access details on: ISOTC Working Area / Published Standards / Standards Under Development. Scroll to find the TC you are interested in.
TC 11 supports the development of national and international standards in the areas of gas quality including the analysis of natural gas, renewable gas and hydrogen.
European and International Committees Mirrored
TC 11 monitors and participates in relevant work within the following committees:
- CEN/TC 234 Gas infrastructure
- CEN/TC 408 Natural gas and biomethane for use in transport and biomethane for injection in the natural gas grid
- ISO/TC 193/SC 01 Analysis of natural gas
- ISO/TC 197 Hydrogen technologies
Click the link CEN/TC to access details on: General / Structure / Work Programme / Published Standards. Enter the committee number in the field Search list:
Click on link ISO/TC to access details on: ISOTC Working Area / Published Standards / Standards Under Development. Scroll to find the TC you are interested in.