When multiple surfaces are tested to determine clearance, how should the action levels be applied?

When multiple surfaces are tested to determine clearance, how should the action levels be applied?

• A. All surfaces must meet criteria
• B. Each surface must meet the applicable criteria
• C. The highest-reading surface determines clearance
• D. Only a subset of surfaces may be used for decision

Answer: (B)

When determining clearance with multiple surfaces, you apply action levels to each surface individually. Each surface has its own applicable criteria based on the surface type, its location, and the testing method used. The area is considered clear only if every tested surface meets its specific criterion; a failure on any surface means that portion still needs cleaning. This per-surface approach ensures that all surfaces are evaluated against the appropriate standard, rather than relying on a single overall threshold. The other ideas don’t fit because one standard for all surfaces can overlook surface-specific requirements, the highest reading doesn’t by itself decide clearance, and using only a subset of surfaces would ignore relevant data.

When determining clearance with multiple surfaces, you apply action levels to each surface individually. Each surface has its own applicable criteria based on the surface type, its location, and the testing method used. The area is considered clear only if every tested surface meets its specific criterion; a failure on any surface means that portion still needs cleaning. This per-surface approach ensures that all surfaces are evaluated against the appropriate standard, rather than relying on a single overall threshold. The other ideas don’t fit because one standard for all surfaces can overlook surface-specific requirements, the highest reading doesn’t by itself decide clearance, and using only a subset of surfaces would ignore relevant data.