In areas protected by clean agent systems, wall partitions should extend from the floor slab to which boundary?

In areas protected by clean agent systems, wall partitions should extend from the floor slab to which boundary?

• A. The Ceiling Slab
• B. The Roof
• C. The Subfloor
• D. The Mid-Height

Answer: (A)

When a clean agent system is used, the protected space must be a sealed volume so the agent can achieve and maintain the required concentration. The top boundary of that space is the ceiling slab, so wall partitions should extend from the floor up to the underside of the ceiling slab. This creates a complete enclosure for the protected zone on that floor and prevents the agent from leaking into adjacent areas or rising into gaps above. Stopping at mid-height or at the subfloor would leave openings, and extending to the roof isn’t the standard boundary for the protected volume on a given floor, which would ignore the space below the roof that still needs containment.

When a clean agent system is used, the protected space must be a sealed volume so the agent can achieve and maintain the required concentration. The top boundary of that space is the ceiling slab, so wall partitions should extend from the floor up to the underside of the ceiling slab. This creates a complete enclosure for the protected zone on that floor and prevents the agent from leaking into adjacent areas or rising into gaps above. Stopping at mid-height or at the subfloor would leave openings, and extending to the roof isn’t the standard boundary for the protected volume on a given floor, which would ignore the space below the roof that still needs containment.