To address these needs, a Hydrogen Quality Sampling Apparatus (HQSA) has been developed by the Gas Technology Institute.  This presentation will describes the development process of the HQSA including the design process, hazard analysis, build and testing of the apparatus which was completed in September 2007.  The following process that was followed will be presented with step by step photos of the final product in use:

The preliminary design was developed, based on the industry experience with a similar unit used to test 35MPa gas samples.  The 35 MPa design / experience were evaluated by GTI, a new design was developed, and materials were selected to ensure compatibility with hydrogen and the pressures anticipated.  The preliminary design schematic was reviewed with an ASTM working group and feedback from the meeting was incorporated in a revised design that was used for conducting a hazard analysis.  As a result of the hazard analysis and follow-up discussions with industry experts the HQSA design was refined and finalized.  Materials were procured and fabrication and assembly was completed.  Strength, leak, and over pressure protection testing was conducted by GTI and the results documented.  An initial field operation of the HQSA was performed after an operating manual was developed by GTI and reviewed by the working group.