Hydrogen and Fuel Cell Safety

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Update on ISO TC 197 Hydrogen Technologies

The ISO TC 197 Plenary and working group meetings were held in November in Palm Springs, California. A special thanks to the U.S. Fuel Cell Council for hosting the ISO/TC 197 Plenary meeting in Palm Springs November 10, and the organizations whose sponsorship made it possible. 15 U.S. delegates attended and 8 countries were represented at the Plenary meeting: Canada, France, Italy, Japan, Korea, Netherlands, Norway and the United States.

The Chairman reported on his activities to promote TC 197 by means of a round table in early 2007 for facilitating global harmonization of regulations, codes and standards on hydrogen and other gaseous fuels, infrastructure as well as road and off-road vehicles that use these fuels. He has been named to manage the development of the roundtable. The NHA will publish additional information in the Hydrogen and Fuel Cell Safety Report as it becomes available.

Working Group Reports
WG 8 Hydrogen generators using water electrolysis process-Part 1: Industrial and commercial (Work Item (WI) 22734 -1) is out for comment and vote, which ends December 29, 2005.
Part 2 of the standard on residential electrolyzers was being written and is scheduled to be issued for committee draft (CD) comment and vote in early 2006.

The report on WG 9, Hydrogen generators using fuel processing technologies (WI 16110 -1 & -2) is presented in a separate article in this issue by the convener, Falco Thuis of the Netherlands.

The report on WG 10, Transportable gas storage devices-Hydrogen absorbed in reversible metal hydrides (WI 16111) was given by Ned Stetson. Dr. Stetson indicated that the WG 10 meeting produced a draft that addressed all the comments raised by the previous draft CD. He hopes the CD can be issued for vote and comment as soon as possible. He also indicated that the great interest in this work by the UN and DOT causes him to request that this material be made available as a technical specification (TS). This would allow for earlier issuance of a document that could be referenced. The technical committee considered his request and approved parallel tracks for the document as a Draft Technical Specification in parallel with the second CD for an International Standard.

The report on WG 11, Gaseous hydrogen and hydrogen blends-Fuelling stations (WI 20012) was given by Chairman, Randy Dey, who is also the convener. He indicated that the draft technical specification (TS) was being written and should be issued for review and vote in late summer 2006.

The report on WG 12, Hydrogen fuel-Product specification (14687-2) was presented by Professor Takagi, convener from Japan. He indicated that WG 12 had reached agreement on the draft TS and were ready to issue it for comment and committee vote along with the corrigendum to Part 1 in December. During the discussion there was much confusion on the scope of this effort. The chairman requested a presentation on the scope of the effort later in the meeting.

The report for WG 13, Hydrogen detectors (WI 26142) was given by Ichiro Matsubara of Japan. He presented the scope of the effort and indicated that he hoped to have a CD for vote and review by September 2006. The first meeting of WG 13 will be the end of January 2006 in Japan. The convener indicated that he would expand the scope to include all structures. He also stated that voltages and currents of detectors would not be specified. TC 197 will develop a formal liaison with IEC TC 31 to have its members serve on ISO TC 197 WG 13.

ISO/TC 197 confirmed the need for all the work items currently registered in its program of work and, considering the report of the working group conveners, agreed to the following target dates:

Target Dates for ISO TC 197 Work Items Key: (CD - Committee draft, DIS - Draft International Standard, DTR - Draft technical report, DTS - Draft Technical Specification, FDIS - Final draft International Standard, IS - International Standard, TS - Technical Specification
WG	Work Item	Title	Target dates
1	13985	Liquid hydrogen - Land vehicle fuel tanks	FDIS: 2006-01 IS: 2006-07
5	17268	Compressed hydrogen surface vehicle refueling connection devices	First publication FDIS: 2005-12 IS: 2006-06 Revision CD: 2006-12 DIS: 2007-06 FDIS: 2008-06 IS: 2008-12
6	15869	Gaseous hydrogen and hydrogen blends - Land vehicle fuel tanks	DIS2: 2006-02-28 FDIS: 2006-10-28 IS: 2007-04-28
8	22734-1	Hydrogen generators using water electrolysis process - Part 1: Industrial and commercial applications	FDIS: 2006-07 IS: 2007-01
8	22734-2	Hydrogen generators using water electrolysis process - Part 2: Residential applications	CD: 2006-01 DIS: 2006-07 FDIS: 2007-07 IS: 2008-01
9	16110-1	Hydrogen generators using fuel processing technologies - Part 1: Safety	FDIS: 2006-09 IS: 2007-03
9	16110-2	Hydrogen generators using fuel processing technologies - Part 2: Test methods for performance	CD: 2006-03 DIS: 2006-09 FDIS: 2007-09 IS: 2008-03
10	16111	Transportable gas storage devices - Hydrogen absorbed in reversible metal Hydrides	DTS: 2005-12 TS: 2006-06 CD2: 2005-12 DIS: 2006-06 FDIS: 2007-06 IS: 2007-12
11	20012	Gaseous hydrogen - Fuelling stations	DTS: 2006-08 TS: 2007-02
12	14687-2	Hydrogen Fuel - Product Specification - Part 2: PEM fuel cell applications for road vehicles	DTC: 2005-12 DTS: 2005-12 TS: 2006-06 International Standard CD: 2007-06 DIS: 2008-06 FDIS: 2009-06 IS: 2010-01
13	26142	Hydrogen detectors	CD: 2006-09 DIS: 2007-03 FDIS: 2008-03 IS: 2008-09

The Chairman discussed the progress that was made on the ISO TC 197 business plan and the need to provide updated hydrogen information for the plan.

Mr. Dey discussed the ad hoc group on hydrogen components. He proposed that a list of international standards be developed for hydrogen components, which identified the standards that could be used as is, with minor modification, or required new work item proposals. The chair also requested additional members of the committee.

There was agreement that the next meeting would be held in Lyon, France in conjunction with the WHEC meeting in June 2006.

Other Working Group News
ISO/DIS 22734-1, Hydrogen generators using water electrolysis process-Part 1: Industrial and commercial applications is out for vote. US TAG members are reminded to get your vote to CGA no later than December 19. (Contact Debbie Angerman, 703-788-2700 or cga@cganet.com.)

WG-11, Gaseous hydrogen and hydrogen blends--Filling stations is looking for additional experts. Randy Dey is the convener. Please contact your TAG Administrator (Debbie Angerman for the U.S.) if you are interested in serving on this working group to formulate the draft of ISO 20012.