The following corrective actions have been taken:

• The non-return valve was dismantled, cleaned, and tested. Following positive testing, the system was restarted and pressurized without any further malfunctioning.
• The hydrogen…

This occurrence underscores the importance of completing a hazard analysis for each different process. Non-safety-related systems or equipment may be used for purposes other than their primary purpose so long as potential hazards are identified…

Maintain an internal process for verifying component wetted material compatibility for intended use as part of the procurement process for hydrogen system equipment. It is critical that component parts be appropriately rated for the materials,…