How many years must QA records be maintained according to radon measurement standards?

• A. 3 years
• B. 5 years
• C. 6 years
• D. 10 years

Answer: (C)

The appropriate duration for maintaining Quality Assurance (QA) records in the context of radon measurement standards is typically 5 years. Maintaining these records is crucial as they provide documented evidence that the measurement process followed the established protocols, ensuring the reliability and accuracy of radon testing results. Retaining these records for the specified period allows for proper verification and quality control in the event of any discrepancies or audits.

While some standards may reference different durations for various types of records, a 5-year retention is widely accepted in radon measurement practices, aligning with guidelines established by key organizations overseeing radon testing protocols.