The 2024 IFC does a nice job of defining our options for work areas where compressed gases that are ASPHYXINATS are stored or used. A client wanted to use Argon, Nitrogen, and Helium in their Labs, and we were asked if this posed a hazard. We took the “inherently safe design” option first, which is to LIMIT the amount of gas that can be inside the room such that if all the gas were to leak into the room, there would NOT be enough to displace the oxygen levels down to 19.6% or less. But when the facility wants to have more of these gases in the lab(s) then we are given two (2) additional options:
Option 1 Ventilation
Indoor storage and use areas and storage buildings shall be provided with ventilation in accordance with Section 5004.3. Where mechanical ventilation is provided, the systems shall be operational during such time as the building or space is occupied.
Exceptions:
- A gas detection system complying with Section 5307.2.1 shall be permitted in lieu of mechanical ventilation.
Option 2 Gas Detection System
In rooms or areas not provided with ventilation in accordance with Section 5307.2, a gas detection system complying with Section 916 or, where approved, an oxygen depletion alarm system, either of which initiates audible AND visible alarm signals in the room or area where sensors are installed, shall be provided.