ASME Hydrogen Codes and Standards Development Update
G.M. Eisenberg-Director, Pressure Technology Codes and Standards, ASME

CSA Hydrogen Documents Available for Public Review
Julie Cairns, Canadian Standards Association

NFPA Update
Karen Hall, National Hydrogen Association

Safety, Codes and Standards Featured at 2008 NHA Conference in Sacramento
Kyle Gibeault, National Hydrogen Association

Addressing Potential Near Term Demand Gaps in Hydrogen Infrastructure
Tony Androsky, U.S. Fuel Cell Council

United Kingdom Moves Forward on Hydrogen Standards
Karen Hall, National Hydrogen Association

National Hydrogen and Fuel Cells Codes & Standards Coordinating Committee Teleconference - January 2008 Minutes
Russell Hewett, NREL

ASME Hydrogen Codes and Standards Development Update
G.M. Eisenberg-Director, Pressure Technology Codes and Standards, ASME

The ASME Approach
ASME’s approach to standards development for hydrogen infrastructure applications recognizes the important role of technically relevant standards in advancing the commercialization of new technology, enhancing consumer confidence, and protecting public health and safety. ASME standards are developed in a collaborative, voluntary consensus environment that can support the development of government regulations consistent with the spirit of the National Technology Transfer and Advancement Act of 1995 (ref: Research and development (R&D) projects are underway that strive to bridge the gaps between technology advancement and standards development. ASME’s involvement in R&D projects helps produce results that respond to the needs of voluntary consensus committees in developing technically relevant codes and standards. ASME identifies and prioritizes R&D needs to help focus the use of limited resources in these priority areas. Collaboration in R&D projects helps to minimize individual investment while maximizing benefits.

Under the ASME Board on Pressure Technology Codes and Standards, the following major initiatives are underway:

ASME Standards Development for Hydrogen Tanks
ASME formed a Project Team on Hydrogen Tanks under the Boiler and Pressure Vessel (BPV) Standards Committee. The Project Team is developing new rules for metallic and composite construction for hydrogen tanks operating at pressures up to 15,000 psig (105 MPa). The project team meets concurrent with the quarterly meetings of the ASME Boiler and Pressure Vessel Committee, and last met in Boston, MA on February 6, 2008.

The project team’s strategy includes development of Code Cases for hydrogen-specific applications written in conjunction with current rules published in the ASME BPV Code, rather than development of a completely new code for hydrogen pressure vessels. Code Cases are being written to provide alternatives to existing rules in a BPV Code section that allow for expedited approval and publication of the technology and thus, allow for early implementation. The primary BPV Code rules being addressed by the project team are Section VIII, Division 3 (Alternative Rules for Construction of High Pressure Vessels) and Section X (Fiber-Reinforced Plastic Pressure Vessels). 

To date, the following actions have been completed:

  • Article KD-10 - Special requirements for fracture resistance of all-steel vessels in Section VIII Division 3
  • Code Case 2579 - Hoop-wrapped Composite Reinforced Pressure Vessels with Welded Liners for Gaseous H2 Service; Section VIII Division 3
  • Code Case 2569 - SA-372 Steel Construction for Use in High-pressure Hydrogen Applications; Section VIII Division 3
  • Code Case 2563 – Aluminum Alloy 6061 construction for Use in High-pressure Hydrogen Applications; Section VIII Division 3

Items underway include:

  • Code Case for Fully Wrapped Fiber Reinforced Composite Pressure Vessels with Non-Load Sharing Liners for Gaseous H2 Service for Section X application as a new Class 3 up to 15,000 psi
  • Guidelines for in-service inspection of composite hydrogen vessels

ASME B31.12 - Hydrogen Piping and Pipelines
The B31.12 Section Committee was formed under the B31 Standards Committee to develop a new B31 Code for hydrogen piping and pipelines that contains requirements specific to hydrogen service in power, process, transportation, distribution, commercial and residential applications. The B31.12 code committee is developing technical requirements that are specific to hydrogen pipeline and piping systems and will reference ASME B31.3 (Process Piping) and ASME B31.8 (Gas Transmission and Distribution Piping Systems), and ASME B31.8S (Managing System Integrity of Gas Pipelines) where the requirements are appropriate. 

The first edition of the B31.12 Hydrogen Piping and Pipeline Code will contain:

  • Part GR-General Requirements including common requirements that all other parts will reference
  • Part IP addressing industrial piping such as that found in hydrogen plants and filling stations
  • Part PL covers hydrogen pipelines and distribution systems including design, installation, integrity management, maintenance and conversion of existing pipeline systems to hydrogen service. This Part contains a section on conversion of existing natural gas or petroleum pipelines to hydrogen service

Material performance factors have been developed to account for the adverse effects of hydrogen gas on the mechanical properties of carbon and low alloy steels. These factors appear in the design sections of both IP and PL and their tables are shown in Appendix IX. Appendix IX also includes tables of design allowable stresses for materials. Note that many materials included in B31.3 have been omitted from B31.12 tables due to their unsuitability for hydrogen service. 

A future initiative following issuance of the first edition will address the development of Part CRP covering commercial and residential applications. 

A proposed new Part CR covering commercial and residential piping is under development and is expected to be included in a future edition of the Code. Individual chapter balloting is in progress with anticipated publication in 4th quarter of 2008.

Supporting Research Activities
A key part of the ASME approach to hydrogen standards development includes the R&D necessary to support the technical basis of new rules and help expedite standards development activities. The ASME Standards Technology, LLC (ASME ST-LLC) has been engaged to manage ASME codes and standards R&D projects and publish the results as Standards Technology Publications (STPs). 

The following Hydrogen Technical Reports have been published or are in progress:

  • Hydrogen Standardization Interim Report (STP/PT-003, published in 2005)
  • Design Factor Guidelines for High-pressure Hydrogen Tanks (STP/PT-005, published in 2006)
  • Design Factor Guidelines for Hydrogen Piping and Pipelines (STP-PT-006, expected February 2008)
  • Properties for Composite Materials in Hydrogen Service (expected in 2008)
  • Data Supporting Composite Tank Design Factors (expected 2008)

Additional Background Information
ASME has over 125 years of experience in promoting the art, science, and practice of mechanical engineering and allied sciences. Throughout its history ASME has established strong collaborative relationships with academia, industry and government and helped promote commercialization of new technology areas, such as the hydrogen infrastructure. ASME brings with it a proud heritage of integrity, engineering excellence, international prestige, and a strong commitment to technology. ASME’s membership, technical divisions, and voluntary standards development committees contain a diverse group of technical experts from around the world serving many stakeholders.

ASME’s Codes and Standards (C&S) develops, maintains, and updates voluntary consensus standards and conformity assessment programs. ASME maintains approximately over 500 standards with 50 consensus committees and 700 total committees formed from over 3,800 volunteer subject matter experts from industry and government. Also, ASME maintains 12 conformity assessment programs and certifies manufacturers of equipment. Technical areas addressed by ASME C&S include pressure technology, safety, commercial nuclear power, performance testing, and standardization. ASME standards are accepted for use in over 100 countries. ASME’s voluntary consensus process includes elements of openness, transparency, balance of interests, consensus, and due process consistent with the principles of international standards development established by the World Trade Organization’s Technical Barriers to Trade Committee. ASME procedures are accredited by the American National Standards Institute (ANSI).

Established in 1880, the American Society of Mechanical Engineers (ASME) is a not-for-profit professional organization promoting the art, science and practice of mechanical and multidisciplinary engineering and allied sciences. ASME develops codes and standards that enhance public safety, and provides lifelong learning and technical exchange opportunities benefiting the engineering and technology community. ASME’s 100,000 individual members are organized internationally into geographic and student membership sections. ASME conducts one of the world's largest technical publishing operations, holds numerous technical conferences worldwide, and offers hundreds of professional development courses each year. ASME publishes and accredits users of internationally recognized industrial and manufacturing codes and standards that enhance public welfare and safety. Visit for more information.

ASME Standards Technology, LLC (ASME ST-LLC) is a not-for-profit Limited Liability Company, with ASME as the sole member, formed in 2004 to carry out work related to newly commercialized technology. The ASME ST-LLC mission includes meeting the needs of industry and government by providing new standards-related products and services, that advance the application of emerging and newly commercialized science and technology and providing the research and technology development needed to establish and maintain the technical relevance of codes and standards. Visit www.stllc.asme.orgfor more information.

About the Author
Mr. Eisenberg is a graduate of the U.S. Merchant Marine Academy in King’s Point, NY and has served on the ASME Codes and Standards staff for the past 35 years. He is presently ASME’s Director of Pressure Technology Codes and Standards. He works at ASME Headquarters in New York City and can be reached

CSA Hydrogen Documents Available for Public Review
Julie Cairns, Canadian Standards Association

A number of draft CSA standards are now available for public comment. CSA America is inviting interested parties to review the drafts and provide comments in order to ensure the documents reflect what is needed by industry.

Process for Review and Comment
Please click on the link and you will be directed to the CSA America, Inc. web site Review and Comment home page. Follow the directions on the site to download and view the review and comment text. Complete the online form for comment or criticism, as necessary. A rationale statement is required for any suggested revisions or disapproval of the proposed text. All comments or criticisms will be considered by the HGV 4 series technical advisory groups at meetings March scheduled for the week of March 10-14, in Cleveland, Ohio.

Thank you in advance for your review and input on the drafts.

DraftDate PostedEnd Date

HGV 4.1 - Review and Comment for Draft Standard - HGV Dispensing Systems 

Feb 4, 2008  Mar 5, 2008  HGV 4.10 - HGV 4.10 Fittings Review and Comment Dec 20, 2007  

Feb 20, 2008  

HGV 4.2 - Review and Comment for Draft Standard - Hoses for Compressed Hydrogen Vehicles & dispensing Systems 

Feb 4, 2008  Mar 5, 2008  

HGV 4.4 - Review and Comment for Draft Standard - Breakaway Devices for Hoses Used in Compressed Hydrogen Vehicle Fueling Stations 

Feb 4, 2008  Mar 5, 2008  

HGV 4.5 - Review and Comment for Draft Standard - Priority and Sequencing Equipment for Hydrogen Gas Vehicle Fueling 

Feb 4, 2008  Mar 5, 2008  

HGV 4.6 - Review and Comment for Draft Standard - Manually Operated Valves Used in Gaseous Hydrogen Vehicle Fueling Stations 

Feb 4, 2008  Mar 5, 2008  

HGV 4.7 - Review and Comment for Draft Standard - Automatic Valves for use in Gaseous Hydrogen Vehicle Fueling Stations 

Feb 4, 2008  Mar 5, 2008  

Z21.50-2007/CSA 2.22-2007 - Review and Comment for Vented Gas Fireplaces standard 

Feb 1, 2008  Mar 30, 2008  

Z21.88-2005/CSA 2.33-2005 - Review and Comment for Vented Gas Fireplace Heaters standard 

Feb 1, 2008  

Mar 30, 2008  

NFPA Update
Karen Hall, National Hydrogen Association

NFPA hydrogen activities are in full swing, with significant activities underway for NFPA 52, NFPA 55, and NFPA 2.

The joint NFPA 2 and NFPA 55 task group on separation distances met last week at NREL in Golden CO. The work is coming together. Consensus was achieved in the task group. A proposal for this work is expected for NFPA 55 by end of February for an Apr 16 &17 Report on Comments (ROC) meeting. Quantitative risk assessment was used to develop risk informed separation distances. The adopted changes will be extracted back to NFPA 2.

An update is provided below for each of these codes:

  • NFPA 52 - Vehicular Fuel Systems Code
    Responsible Committee: Vehicular Alternative Fuel Systems
    The Report on Proposals (ROP) has been published. 48 proposals from the NFPA 52 ROP are of interest to the Hydrogen Industry Panel on Codes (HIPOC).

    The comment closing date for public comments is 2/29/08. The comments will be distributed as soon as possible after 2/29/08. The Report on Proposal ballot is available on the committee web page and the NFPA public page (

    The VAF Report on Comment (ROC) will be held from May 6-8, 2008 in Las Vegas, Nevada.

    Comment Closing Date: 2/29/2008
    Report on Comments Mailing Date: 8/22/2008
    Notice of Intent to Make a Motion Closing Date: 10/17/2008
    Posting of Certified NITMAM: 11/14/2008
    Revised Edition Date: 2009

  • NFPA 55 - Standard for the Storage, Use, and Handling of Compressed Gases and Cryogenic Fluids in Portable and Stationary Containers, Cylinders, and Tanks
    Responsible Committee: Industrial and Medical Gases
    The Report on Proposals (ROP) has been published. 23 proposals from NFPA 55 ROP are of interest to HIPOC.

    Comment Closing Date: 2/29/2008
    Report on Comments Mailing Date: 8/22/2008
    Notice of Intent to Make a Motion Closing Date: 10/17/2008
    Posting of Certified NITMAM: 11/14/2008
    Revised Edition Date: 2009

  • NFPA 2 - Hydrogen Technologies Code (Proposed) 
    Responsible Committee: Hydrogen Technology
    NFPA 2 is to be an excerpt document to bring together the requirements for hydrogen technologies into a single document. NFPA 2 is now expected to be on the 2010 Annual cycle. Many proposals were submitted to the reference codes, and these will need to be adopted by the Technical Committees involved and then extracted back into NFPA 2.

    The next NFPA 2 full technical committee meeting will be held June 26 and 27 at NREL. The purpose is to achieve consensus on the work products of the task groups and to assemble new task groups for final document preparation.

Review of the Code Development Process
Once the ROP becomes available, there is a 60-day comment period during which anyone may submit a Public Comment on the proposed changes in the ROP. This is the stage both NFPA 52 and NFPA 55 are currently in. The committee then reconvenes at the end of the comment period and acts on all Comments. A two-thirds approval vote by written ballot of the eligible members of the committee is required for approval of actions on the Comments. All of this information is compiled into a second Report, called the Report on Comments (ROC), which, like the ROP, is published and made available for public review for a seven-week period.

Following the completion of the Proposal and Comment periods, there is a further opportunity for debate and discussion at the NFPA Annual Meeting. The Technical Report Session provides an opportunity for the final Technical Committee Report (i.e., the ROP and ROC) on each proposed new or revised code or standard to be presented to the NFPA membership for the debate and consideration of motions to amend the Report. The specific rules for the types of motions that can be made and who can make them are set forth in NFPA’s rules which should always be consulted by those wishing to bring an issue before the membership at a Technical Report Session.

The following presents some of the main features of how a Report is handled, taken from the NFPA website:

  • What Amending Motions are Allowed
    The Technical Committee Reports contain many Proposals and Comments that the Technical Committee has rejected or revised in whole or in part. Actions of the Technical Committee published in the ROP may also eventually be rejected or revised by the Technical Committee during the development of its ROC. The motions allowed by NFPA rules provide the opportunity to propose amendments to the text of a proposed code or standard based on these published Proposals, Comments and Committee actions. Thus, the list of allowable motions include motions to accept Proposals and Comments in whole or in part as submitted or as modified by a Technical Committee action. Motions are also available to reject an accepted Comment in whole or part. In addition, Motions can be made to return an entire Technical Committee Report or a portion of the Report to the Technical Committee for further study.
  • Who Can Make Amending Motions
    Those authorized to make these motions is also regulated by NFPA rules. In many cases, the maker of the motion is limited by NFPA rules to the original submitter of the Proposal or Comment or his or her duly authorized representative. In other cases, such as a Motion to Reject an accepted Comment, or to Return a Technical Committee Report or a portion of a Technical Committee Report for Further Study, anyone can make these motions. For a complete explanation, NFPA rules should be consulted.
  • The Filing of a Notice of Intent to Make a Motion
    Before making an allowable motion at a Technical Report Session, the intended maker of the motion must file, in advance of the session, and within the published deadline, a Notice of Intent to Make a Motion. A Motions Committee appointed by the Standards Council then reviews all notices and certifies all amending motions that are proper. The Motions Committee can also, in consultation with the makers of the motions, clarify the intent of the motions and, in certain circumstances, combine motions that are dependent on each other together so that they can be made in one single motion. A Motions Committee report is then made available in advance of the meeting listing all certified motions. Only these Certified Amending Motions, together with certain allowable Follow-Up Motions (that is, motions that have become necessary as a result of previous successful amending motions) will be allowed at the Technical Report Session.
  • Consent Documents
    Often there are codes and standards up for consideration by the membership that will be non-controversial and no proper Notices of Intent to Make a Motion will be filed. These “Consent Documents” will bypass the Technical Report Session and head straight to the Standards Council for issuance. The remaining Documents are then forwarded to the Technical Report Session for consideration of the NFPA membership. 
  • Action on Motions at the Technical Report Session
    In order to actually make a Certified Amending Motion at the Technical Report Session, the maker of the motion must sign in at least an hour before the session begins. In this way a final list of motions can be set in advance of the session. At the session, each proposed Document up for consideration is presented by a motion to adopt the Technical Committee Report on the Document. Following each such motion, the presiding officer in charge of the session opens the floor to motions on the Document from the final list of Certified Amending Motions followed by any permissible Follow-Up Motions. Debate and voting on each motion proceeds in accordance with NFPA rules. NFPA membership is not required in order to make or speak to a motion, but voting is limited to NFPA members who have joined at least 180 days prior to the session and have registered for the meeting. At the close of debate on each motion, voting takes place, and the motion requires a majority vote to carry. In order to amend a Technical Committee Report, successful amending motions must be confirmed by the responsible Technical Committee, which conducts a written ballot on all successful amending motions following the meeting and prior to the Document being forwarded to the Standards Council for issuance.

Safety, Codes and Standards Featured at 2008 NHA Conference in Sacramento
Kyle Gibeault, National Hydrogen Association

This year, the National Hydrogen Association’s Annual Conference will feature more events related to hydrogen safety, codes and standards than ever before. Each day of the conference includes specific sessions on these topics as well as sessions on a large variety of other topics related to the hydrogen and fuel cell industry. 

The 19th Annual Conference, Ramping Up Commercialization, will be held in Sacramento, CA, March 30- April 3, 2008. More than 1,500 business professionals and expo visitors are expected to attend what is the largest hydrogen conference in the U.S. and the longest running annual hydrogen conference in the world.

The following table is a list of conference sessions related to safety, codes and standards. These events are just a sample of the five full days of hydrogen activities associated with the 2008 Conference and Expo (please note: schedule and speakers are subject to change). For the complete Conference program and details on how to register, visit:

We hope to see you in Sacramento this March!

Safety, Codes & Standards Events
All dates and times are subject to change. Unless noted, all events will be held at the Sacramento Convention Center.

Sunday, March 30

6:30 PM – 7:30 PMConference and Expo open with the Welcome Reception

Monday, March 31

8 AM – 6 PMConference events begin with open keynote panel (see schedule online)

(11:30 AM – 1 PM)

Parallel Session 1
"Design Considerations for Real World Conditions"Afternoon
(2:30 PM – 4 PM)

Parallel Session 2
" Siting Issues"
"Latest Advances in Hydrogen Safety: Sensors"

Tuesday, April 1

8:15 AM – 8PMConference Events Continue (see schedule online)

(11:05AM – 12:35PM)

Parallel Session 3
"Testing and Design for Road and Space Applications"

Wednesday, April 2

8:15 AM – 4:15 PMConference Events Continue (see schedule online)

(2:30 PM – 4 PM)

Parallel Session 6
"Progress in Hydrogen Vehicle Standards "

Thursday, April 3

8 AM – 5:30 PM
(at the Sheraton
Grand Hotel)
2008 Compressed Gas Association Hydrogen Seminar (separate fee)

Addressing Potential Near Term Demand Gaps in Hydrogen Infrastructure
Tony Androsky, U.S. Fuel Cell Council

On Tuesday, January 8th, the US Fuel Cell Council held a forum/workshop addressing the potential near term demand gaps in hydrogen infrastructure. The meeting was held at the South Coast Air Quality Management District (SCAQMD) office in Diamond Bar, CA. Participants included vehicle OEMs, energy providers, officials from several California state government agencies, the US Department of Energy as well as other critical stakeholders. The SCAQMD event was the second formal meeting of this USFCC Transportation Working Group (TWG) lead initiative.

The TWG has been studying hydrogen infrastructure needs for the ramp-up of hydrogen vehicle fleets currently underway. Tracking hydrogen highway related state initiatives is integral as hundreds of fuel cell vehicles will be arriving between now and 2010. In order for the hydrogen economy to attain full traction, “compelling” hydrogen stations must be built, they must be in the right place and they must be operating as liability free, open access stations. Integral to this effort is the establishment of enabling codes, standards and recommended practices. Sound coordination is desperately needed. This initiative is providing that coordination.

The Council’s TWG’s position reads that since the first "critical mass" of fuel cell vehicles will be in California, California needs to be addressed first. Then, in short order, other states and regions will be identified and addressed as the need arises. In parallel, a national infrastructure, in accordance with initiatives already underway by the US government, must be coordinated as well. Minutes and presentations from the meeting are posted on the Council’s TWG public website: 

The TWG consists of automotive OEMs/suppliers, fuel cell OEMs/suppliers, hydrogen and energy producers/providers, federal & state government organizations and others. For further information on this initiative as well as other activities of the Council’s Transportation Working Group contact Tony Androsky

United Kingdom Moves Forward on Hydrogen Standards
Karen Hall, National Hydrogen Association

The British Standards Institution (BSI) is the United Kingdom National Standards Body (NSB). It works with manufacturing and service industries, businesses, governments and consumers to facilitate the production of British, European and international standards.

As a Participating Member (P Member) of ISO/TC 197 (Hydrogen technologies), the UK is expected to actively participate in its work including responding to enquiries on draft documents, new work item proposals and nominating Experts to take part in the detailed drafting work. Shadowing the work of ISO/TC 197 is the responsibility of UK National technical committee PVE/3 (Gas containers). PVE/3 was selected to shadow the work of ISO/TC 197 as initially, the activities of ISO/TC 197 were focussed around hydrogen containers rather than hydrogen as a fuel.

At the 16 January 2008 PVE/3 meeting held at BSI, London, a decision was taken regarding adopting a new approach for shadowing hydrogen technology standards.

Work in ISO/TC 197 has increased and it has become apparent that new arrangements should be considered for shadowing the work in a more efficient manner. It was agreed that a new PVE/3 sub-committee should be formed (entitled Hydrogen technologies, with Ms Hall as Chairman) to be responsible for shadowing the ISO/TC 197 work. If necessary, further groups could be formed to shadow specific areas (e.g. one for each ISO/TC 197 Working Group).

At present, the ISO/TC 197 scope includes standardization in the field of systems and devices for the production, storage, transport, measurement and use of hydrogen.

The active ISO/TC 197 work groups are as follows:

Working GroupTitle

ISO/TC 197/WG 1Liquid hydrogen - Land vehicles fuel tanks

ISO/TC 197/WG 5Gaseous hydrogen - Land vehicle filling connectors

ISO/TC 197/WG 6Gaseous hydrogen and hydrogen blends - Land vehicle fuel

ISO/TC 197/WG 8Hydrogen generators using water electrolysis process

ISO/TC 197/WG 9Hydrogen generators using fuel processing technologies

ISO/TC 197/WG 10Transportable gas storage devices - Hydrogen absorbed in
reversible metal hydride

ISO/TC 197/WG 11Gaseous hydrogen - Service stations

ISO/TC 197/WG 12Hydrogen fuel - Product specification

ISO/TC 197/WG 13Hydrogen detectors

To date, the UK response to ISO/TC 197 matters has been provided (almost exclusively) through the UKHA which operates its own membership and structure. The normal mode of working is that the PVE/3 Secretary would circulate a document and ask for responses. Ms Hall (on behalf of the UKHA) and any other PVE/3 Members would then submit their replies which are collated by the Secretary, if necessary discussed with the PVE/3 Chairman and the UK position agreed and submitted. Often, the only replies received were through the UKHA, since an increasing number of ISO/TC 197 activities have dealt with topics other than gas containers.

With its present structure, the PVE/3 Chairman is formally responsible for agreeing all the UK responses even in areas where he may not be technically qualified to do so. The existing PVE/3 sub-committees (PVE/3/1 (Valve fittings for gas containers), PVE/3/3 Transportable gas containers – Cylinder design, construction and testing at the time of manufacture) and PVE/3/7 (Gas cylinder (receptacle) operations)) all of which have the full, delegated responsibility from PVE/3 to deal with matters within their scope. A similar arrangement, with the same delegated responsibility from PVE/3 to shadow the work of ISO/TC 197 is desired.

The scope of the new PVE/3 sub-committee includes responsibility for for monitoring the work of ISO/TC 197 on behalf of PVE/3, and, when necessary, discuss, agree and submit the UK position and vote regarding any associated areas of work.

All Members of PVE/3 and its sub-committees are to inform the Secretary on or before 27 February 2008 whether they wish to sit on the new sub-committee. If there is no response, a new PVE/3 subcommittee will be formed with Ms Hall as Chairman, Mr Duncombe as Secretary and Mr Lake (in his capacity of PVE/3 Chairman).

It is desired to identify additional hydrogen experts to sit on the new subcommittee. UK experts in hydrogen, gas safety and any of the topics covered by the current ISO/TC 197 scope are encouraged to contact Karen Hall to indicate a willingness to sit on the new subcommittee. Representatives from industry associations, whether national or regional, are strongly encouraged to participate. Ideally new Members should be nominated by a Trade Association but if that is not possible, they can be co-opted.