In September 2024, the Compressed Gas Association (CGA) rolled out newly revised editions of CGA S-1.2 and CGA S-1.3, designed to ensure you have the right tools to keep your operations safe and compliant. If you’re responsible for sizing pressure relief devices (PRDs) for portable containers or stationary storage, these updated safety standards are your go-to resources.

Why are these publications critical?
Sizing PRDs correctly can mean the difference between a smooth operation and a critical safety failure. These standards serve as essential companions to regulations, codes, and specifications, making sure your PRDs do their job—safeguarding compressed gas storage under the toughest conditions.

What’s inside?

  • CGA S-1.2 covers the recommended minimum requirements for PRDs on portable compressed gas containers. It aligns with U.S. Department of Transportation (DOT) and Transport Canada regulations, ensuring portable container safety on both sides of the border.
  • CGA S-1.3 focuses on PRDs for stationary storage containers built to ASME Boiler & Pressure Vessel Code specifications, offering a clear path to safe and efficient gas storage.

What’s new in the 2024 editions?
The 2024 updates are packed with enhancements to reflect the latest industry knowledge:

Key Updates to CGA S-1.2:

  • Expanded coverage on secondary PRDs and breaking/buckling pin devices, giving you more precise safety options.
  • Enhanced clarity for using refrigerated cryogenic fluids, broadening the scope beyond standard cryogenic fluids.
  • Revised equations for calculating Gi and Gu in both U.S. and metric units (Appendix B)—bringing you greater accuracy for your calculations.

Key Updates to CGA S-1.3:

  • New technical definition for “pressure control valve” to clear up industry terminology.
  • Improved guidance for factoring ambient temperature into secondary pressure relief systems—because environmental factors matter.
  • Adjusted equations to calculate emergency temperature conditions at the PRD inlet for better operational safety.
  • A brand-new table on safeguarding factor values (S) and enhanced equation accuracy in both U.S. and metric units (Appendix A).

Don’t miss out
The CGA S-1.2 and S-1.3 publications are essential for anyone dealing with PRDs on compressed gas containers. They reflect industry advances and provide vital safety solutions tailored to evolving needs. Make sure your pressure relief systems are optimized for safety, compliance, and performance.

Download CGA S-1.2 here and CGA S-1.3 here to elevate your safety standards.