ISO TC197 Update
Karen Hall, National Hydrogen Association
WG6:
ISO/TS 15869:2009, Gaseous hydrogen and hydrogen blends—Land vehicle fuel tanks has been published. Although failing at its third attempt at a draft International Standard (DIS), voting members indicated strong support for the document to become a Technical Specification until consensus could be agreed on the outstanding technical issues. Without changes, the failed third DIS has been published as a Technical Specification.
SCOPE: ISO/TS 15869:2009 specifies the requirements for lightweight refillable fuel tanks intended for the on-board storage of high-pressure compressed gaseous hydrogen or hydrogen blends on land vehicles.
It is not intended as a specification for fuel tanks used for solid, liquid hydrogen or hybrid cryogenic high-pressure hydrogen storage applications.
ISO/TS 15869:2009 is applicable for fuel tanks of steel, stainless steel, aluminium or non-metallic construction material, using any design or method of manufacture suitable for its specified service conditions.
ISO/TS 15869:2009 applies to the following types of fuel tank designs:
- Type 1: metal fuel tanks;
- Type 2: hoop-wrapped composite fuel tanks with a metal liner;
- Type 3: fully wrapped composite fuel tanks with a metal liner;
- Type 4: fully wrapped composite fuel tanks with no metal liner.
WG 11:
ISO/TC 197 WG 11 Task Group 1 (Separation Distances), met in Paris, France on March 3 and 4. This task group is evaluating a variety of approaches for determining separation distances in support of the developing International Standard 20012: Gaseous Hydrogen - Fuelling Stations. ISO 20012 specifies the characteristics of outdoor commercial fuelling stations that dispense gaseous hydrogen used as fuel onboard land vehicles of all types. It covers, as applicable; the system that produces gaseous hydrogen on-site, the system that stores and dispenses gaseous hydrogen from the point of supply at the fuelling station property to the filling connector installed onboard the land vehicle.
The document was recently published as a Technical Specification while the Working Group continues development of an International Standard.
WG12:
ISO/TC 197 WG 12 met in Grenoble, France on February 2 and 3 to continue work on the draft of CD 14687-2, Hydrogen fuel — Product Specification — Part 2: Proton exchange membrane (PEM) fuel cell applications for road vehicles. Most of the meeting was spent with presentations from participants describing the fuel cell testing they have performed. WG 12 needs to gather as much test data as possible in order to make proper determinations on the tolerance of fuel cells to impurities. Therefore much time was spent understanding testing that has already been done by participating presenters, and planning for a future workshop to provide additional information. The proposal for a workshop was requested by ISO/TC 197 Chair, Randy Dey, with a view of an ISO/TC 197 workshop to gain support for the document. Following the meeting, a draft announcement was sent by E-mail to Mr. Dey for approval. WG12 plans to use the workshop to gain the technical data required to complete the work.
WG13:
ISO/DIS 26142, Hydrogen Detection Apparatus (renamed from Hydrogen Detectors), recently completed a period of comment and voting. The draft received unanimous approval.
It could have proceeded directly to publication, but the Chair, in consultation with the WG convener and the Secretariat, has recommended that the comments be addressed. The comments received are therefore returned to ISO/TC 197 WG 13 for consideration. A revised text will be submitted to the ISO Central Secretariat for the approval procedure (FDIS vote) after the comments have been addressed by the working group.
This working group met in Berlin on March 11 and 12 to address the comments.
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