What is the required minimum frequency of spiked measurements per year for measurement services with passive devices?

The requirement for the minimum frequency of spiked measurements per year for measurement services utilizing passive devices is set at three. This mandated frequency is established to ensure the reliability and accuracy of radon measurements in various environments. Conducting these spiked measurements helps to validate the performance and calibration of the passive devices over time, providing assurance that they maintain their effectiveness in detecting radon levels accurately.

Spiked measurements involve introducing a known quantity of radon into the environment for testing, allowing service providers to gauge how well the passive devices respond to a controlled increase in radon concentration. This process is crucial for establishing trust in the measurement results and for ensuring adherence to quality standards mandated by regulatory bodies. By meeting this minimum frequency, service providers can assure clients that their monitoring processes are robust and credible.