CGA G-5.5 Hydrogen Vent Systems
Presents design guidelines for hydrogen vent systems for gaseous and liquid hydrogen installations at consumer sites, and provides recommendations for their safe operation. This standard should be a useful reference for personnel who design, install, and maintain hydrogen vent systems.
The 5th edition has been published and can be found at https://portal.cganet.com/Publication/Details.aspx?id=G-5.5
Deadline to submit proposed changes for next edition is 03/04/2026.
Heat radiation testing at Chart Industries in New Prague, MN date is ongoing. The goal is for the task force to review test results as soon as they are completed.