The calibration of the Niton, XLp 706A is done in accordance with the Performance
Characteristic Sheet (PCS) for this instrument. These XRF instruments are calibrated
using the calibration standard block of known 1.0 mg/cm² lead content.
Three calibration readings are taken before and after each home is tested to insure manufacturer’s standards are met. If for any reason the instruments are not maintaining a consistent calibration reading within the manufacturer’s standards for performance on the calibration block supplied by the manufacturer, manufacturer’s recommendations are used to bring the instrument into calibration. If the instrument cannot be brought back into calibration it is taken off the site and sent back to the manufacturer for repair and/or re-calibration.