Summary of ISO TC197 WG12 Meeting San Ramon, CA February 23-24, 2006 The meeting was hosted by Chevron at its facilities in San Ramon, CA. The WG members adopted several changes to DTS14687-2, primarily to clarify analytical measurement issues. The key changes made by WG included: • deletion of the fourth column of Table 1 on “Suggested Detectable Limits” due to the implication that the limits listed are related to the methodologies listed in column 5 • renaming column 5 “Laboratory Test Methods to Consider” • adding a new section (5.1.3 Report results) to read: “The detectable limits for analytical methods and instruments used shall be reported along with the results of each test. These detectable limits shall be below the threshold limit for each constituent.” The WG also added the following sentence to the end of paragraph one of the Introduction to help prevent the mixing of the lower grade of fuel specified in ISO1467- 1992 and that specified in ISO14687-2: “Because ISO 14687:1999 includes other grades of hydrogen fuel of lower quality and in the absence of ISO standards for hydrogen fueling stations and installation of hydrogen equipment, it is important to note that appropriate measures should be taken to prevent cross-contamination of these fuels.” For the R&D and testing needed to develop an international standard based on DTS 14687-2, the WG agreed to focus on the following: • three categories: fuel cell tests, fuel production and delivery parameters, and analytical methods and instrumentation • for near-term cell testing: CO, S, NH3, and other constituents that may be identified as testing proceeds • for fuel cell stack efficiency and BOP integrity: He, CH4 and inerts, and PM WG 12 will develop detailed R&D/test matrices for each of the three categories and integrate the activities of the three categories at the next meeting. The next meeting was tentatively set for June 6-7 near Paris in conjunction with the Plenary meeting of ISO TC197.