Progress: Addressed, Not Adequately
DOT Relevance: 192.736
Section 192.736 (Compressor Stations: Gas Detection) of Subpart M (Maintenance) of 49 CFR 192 states that each compressor building in a compressor station must have a fixed gas detection alarm system.
The gas detection system should continuously monitor the compressor building for a certain concentration of hydrogen in air. This concentration must be established. There is an ongoing discussion in the hydrogen community regarding the need to distinguish between hydrogen and other combustible gases in certain applications.
This topic will be addressed by ASME B31.12 as part of compressor station requirements.
The need for hydrogen-specific sensors at compressor stations needs to be evaluated. If required, current sensor development efforts should be evaluated for applicability. Standards must be established relating to hydrogen compressor stations. These standards must be incorporated by reference into the federal code.