Which of the following are advantages of XRF testing?

• A. Speed, cost-efficiency, non-destructiveness
• B. Requires large samples
• C. Only works on metal
• D. High destructiveness

Answer: (A)

XRF testing shines in lead inspections because it provides fast results right on site, is generally cost-effective, and is non-destructive. The handheld XRF devices can analyze paints and coatings quickly without taking apart or sampling large pieces, so you can screen many surfaces in a single visit. This speed and on-site capability keep costs down since you avoid lab turnaround times and sample preparation. Importantly, the technique measures the material without removing or damaging the surface, preserving the item for continued use or future testing.

These advantages contrast with statements about needing large samples, working only on metal, or being highly destructive, which do not describe XRF correctly.