Earth Sciences Division (ESD) Department of Energy (DOE) Lawrence Berkeley National Laboratory (LBNL)


Berkeley Lab will take precautions to prevent injuries, property damage, and disruption to operations caused by leaks of compressed gas and over-pressurizations. Types of injuries and accidents that will be controlled include:

  • Injuries caused by flying objects accelerated by an explosion or pressure release
  • Fires and injuries caused by flammable gas ignition
  • Injuries caused by inhalation of toxic or asphyxiating gases.

The PUB-3000, Chapter 13, Gases, addresses information on documentation, storage, use, and handling of gases in pressurized portable containers and gas systems with additional requirements that apply to:

  • Use of multiple gases in a single control area or building (managed through the bar coding process of compressed gas cylinders)
  • Pressure and cryogenic systems, covered in PUB-3000, Chapter 7,
  • Large compressed gas facilities, storage areas, or use areas (gas cage management)
  • Transportation of compressed gases on or across Berkeley Lab public roads

Bar Coding Compressed Gas Cylinders

Gas cylinders must have a chemical inventory bar code. Gas cylinders that are kept for longer than 30 days must be entered into the Chemical Management System (CMS) database. (Note: if you do not manage chemicals in the CMS, you may not have access to the database. If this is the case, you can either ask someone in your lab who can access the CMS, or email Lee Aleksich to request access.)

Bar coding process and instructions

Recognizing the high through-put of many gas cylinders, the EH&S Division has suggested the following:

  • Post a completed datasheet form (which lists gas names, number of cylinders, etc.) at the entrance of each room/location where gas cylinders reside.
    • Complete the information for each type of gas,
    • Affix the bar code in the upper left corner of the datasheet for each entry (You do not need to barcode the individual cylinders.)
    • Enter the maximum number of gas cylinder containers you expect to have (It is acceptable to indicate more, but it is not acceptable to indicate fewer containers than what you actually have).
  • Enter the datasheet information into the CMS database (including the barcode number and total number of cylinders).
  • Maintain the datasheet and the CMS database when:
    • You acquire new types of gases
    • You increase the number of gas cylinders (Check the count regularly to make sure the datasheet indicates the maximum number of cylinders.)
    • You stop using a certain gas type
    • The gas cylinders are no longer in the room/location.
  • Crosscheck gas cylinder inventory against the datasheet weekly or monthly for accuracy and update both the datasheet and CMS databse as needed.

Gas Cage Management

Additional information pending.