Progress: Not Addressed
DOT Relevance: 192.751
Prevention of accidental ignition falls under Subpart M (Maintenance) of 49 CFR 192. 192.751 states that each operator shall take steps to minimize the danger of accidental ignition of gas in any structure or area where the presence of gas constitutes a hazard of fire or explosion
Appropriate standards are necessary for prevention of accidental ignition of hydrogen pipelines.
SNL is currently conducting research on hydrogen release scenarios, cloud formation and ignition, and flame jet characteristics.
Confirm whether or not this topic will be addressed by ASME B31.12. Research into prevention of accidental ignition for hydrogen pipeline applications must be expanded. This may mean development of tools, equipment, sensors, training programs, etc. Standards need to be developed and incorporated by reference into the federal code.