Michigan Administrative Code
Department - Licensing and Regulatory Affairs
Bureau of Fire Services
Storage and Handling of Gaseous and Liquefied Hydrogen Systems
Part 2 - STORAGE AND HANDLING OF GASEOUS HYDROGEN NFPA 50A
Chapter 5 - Operation and Maintenance
Section R. 29.7047 - Operation

Universal Citation: MI Admin Code R. 29.7047
Current through Vol. 24-16, September 15, 2024

Rule 47. Section 5-1is reproduced from NFPA 50A, and sections 5-1.1 to 5-1.3 of the storage and handling of gaseous and Liquefied H2 code are added as follows:

5-1 Operation. For installations that require any operation of equipment by the user, instructions shall be maintained at operating locations.

5-1.1 A vehicle container shall not be charged in excess of the service pressure compensated for the differences in temperature from nominal.

5-1.2 H2 vehicle containers shall not be subjected to pressure in excess of 125% of the marked service pressure even if, on cooling, the pressure settles to the marked service pressure.

5-1.3 Where an overpressure incident that results in operation of the overpressure protection system of the dispenser occurs, the dispenser pressure control system shall be examined and certified by a qualified operator prior to being returned to service.

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