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ANSI/CSA HGV 4.5-2013 - Priority and sequencing equipment for hydrogen vehicle fueling
The expanding hydrogen industry identified the need for a standard addressing priority and sequencing equipment, which is part of a hydrogen gas vehicle fueling system. This standard ANSI/CSA HGV 4.5-2013 Priority and Sequencing Equipment for Hydrogen Vehicle Fueling establishes requirements for the performance of priority equipment (which controls the order in which a hydrogen gas compressor fills the storage tanks) and sequencing equipment (which controls the order in which the storage tanks are used to fill a vehicle). Equipment shall be suitable as a minimum for operation at ambient temperatures of -40°C (-40°F) to 60°C (140°F).