Clearance testing is performed by taking XRF readings in any four rooms of the house where abatement or renovations took place.

Clearance testing is performed by taking XRF readings in any four rooms of the house where abatement or renovations took place.

• A. True
• B. False
• C. It depends on the scope
• D. Not specified

Answer: (B)

Clearance testing checks that remaining lead dust after abatement or renovation meets the required standards. It uses dust wipe samples collected from surfaces in the work area and analyzed in a lab to determine lead dust levels. XRF readings, by contrast, measure lead in paint on surfaces, not dust, so they aren’t used to assess clearance. The sampling plan for clearance isn’t fixed to “four rooms”; it’s guided by the scope of the work and the cleaning verification protocol, focusing on representative surfaces in the work area. So the statement is not correct because clearance testing relies on wipe samples analyzed in a lab, not XRF readings in a set number of rooms.

Clearance testing checks that remaining lead dust after abatement or renovation meets the required standards. It uses dust wipe samples collected from surfaces in the work area and analyzed in a lab to determine lead dust levels. XRF readings, by contrast, measure lead in paint on surfaces, not dust, so they aren’t used to assess clearance. The sampling plan for clearance isn’t fixed to “four rooms”; it’s guided by the scope of the work and the cleaning verification protocol, focusing on representative surfaces in the work area. So the statement is not correct because clearance testing relies on wipe samples analyzed in a lab, not XRF readings in a set number of rooms.