If an XRF instrument is out of calibration, what must you do?

If an XRF instrument is out of calibration, what must you do?

• A. Read instructions
• B. Follow instructions
• C. Calibrate it yourself
• D. Ignore the issue

Answer: (B)

When an XRF instrument is out of calibration, you must follow the instructions provided by the manufacturer or your site’s standard operating procedures. This ensures you apply the exact steps validated to restore accuracy, protecting the integrity of the measurements and the safety decisions based on them. Out-of-calibration readings can lead to incorrect conclusions about lead levels, so the documented process will guide you through the proper actions—often stopping measurements, performing a calibration verification with known standards, and carrying out the prescribed recalibration or service. Calibrating it yourself without authorization or training can introduce new errors, and simply ignoring the issue or just reading the instructions without acting won’t address the problem.

When an XRF instrument is out of calibration, you must follow the instructions provided by the manufacturer or your site’s standard operating procedures. This ensures you apply the exact steps validated to restore accuracy, protecting the integrity of the measurements and the safety decisions based on them. Out-of-calibration readings can lead to incorrect conclusions about lead levels, so the documented process will guide you through the proper actions—often stopping measurements, performing a calibration verification with known standards, and carrying out the prescribed recalibration or service. Calibrating it yourself without authorization or training can introduce new errors, and simply ignoring the issue or just reading the instructions without acting won’t address the problem.