What procedure do I follow for using an X-ray fluorescence analyzer to test for the presence of lead in paint, or for performing a lead inspection of a residential dwelling, child occupied facility?
You should follow the most current HUD Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing, Chapter 7, Lead-Based Paint Inspection. You should also refer to the XRF manufacturer’s recommendations. Quality control calibration checks must be performed according to the manufacturer’s specifications or results cannot be considered valid.