Environmental Protection Agency (EPA) Model Lead Based Paint Risk Assessor Practice Test

When conducting XRF testing on a door, where should the testing be focused?

1. On the handle only

2. Every edge and corner

3. Both sides of the door

4. On the hinge only

The correct answer is: Both sides of the door

Focusing the XRF (X-ray fluorescence) testing on both sides of the door is essential for a comprehensive assessment of lead-based paint risk. Lead-based paint can exist on any part of a painted surface, and since doors are often painted on both sides, it is crucial to test both areas to ensure that any potential lead hazard is identified. This thorough approach allows for a complete evaluation of the lead content, as lead paint may be deteriorating or present on either surface due to wear and exposure to environmental factors. Testing solely on one side of the door, such as just the handle or the hinge, would not provide adequate information about the overall lead presence on the door itself. Similarly, focusing on only the edges and corners disregards the condition of the broader surface area, which could also contain lead paint. Therefore, assessing both sides of the door ensures that all possible lead exposures are accounted for in the risk assessment.