What defines secondary containment in chemical storage?

What defines secondary containment in chemical storage?

• A. An additional containment barrier around a primary container to catch leaks
• B. A lid placed on the primary container
• C. The primary container's inner lining
• D. A ventilation system to remove vapors

Answer: (A)

Secondary containment means having an extra barrier around the primary container that catches leaks or spills, preventing anything from escaping into the surrounding area. This is usually a secondary container or tray/pallet with enough capacity to hold the full contents if the primary container fails, giving time to clean up and avoid environmental contamination. The other options don’t fit because a lid only covers the container and doesn’t catch leaks, an inner lining is part of the primary container itself, and a ventilation system removes vapors rather than containing spills.

Secondary containment means having an extra barrier around the primary container that catches leaks or spills, preventing anything from escaping into the surrounding area. This is usually a secondary container or tray/pallet with enough capacity to hold the full contents if the primary container fails, giving time to clean up and avoid environmental contamination. The other options don’t fit because a lid only covers the container and doesn’t catch leaks, an inner lining is part of the primary container itself, and a ventilation system removes vapors rather than containing spills.