SAE J2719/1_202211

This SAE Information Report is intended to be used for routine (or periodic) monitoring of filling station performance. It is not intended to provide process quality control requirements for any portion of the product delivery cycle. SAE J2719 was generated to identify impurities that could occur with various hydrogen generation methods and within filling station systems and to define limits for these impurities based on acceptable long-term fuel cell performance for PEM fuel cell vehicles. While SAE J2719 provides a comprehensive listing of such impurities and their limits, testing of the complete specification (particularly on a routine basis to monitor filling station performance) is unnecessarily extensive, as not all impurities within the specification are possible at any given site. The objective of this SAE Information Report is to identify the point where a contaminant is most likely to enter the hydrogen fuel in the fuel generation and distribution process. Depending on the hydrogen fuel generation method, the number of contaminants found in the fuel at the dispensing nozzle in the fueling station may be reduced as compared to those found in the list provided by SAE J2719. By so doing, test requirements can be more reduced and the use of SAE J2719 becomes more practical.