What is the term used for a duplicate radon measurement?

The term "crosscheck" is used in the context of radon measurement to refer to a duplicate radon measurement. This practice involves taking a second measurement in a location where a prior measurement has already been conducted. The purpose of a crosscheck is to ensure the reliability and accuracy of the initial measurement by confirming that the same radon levels are reported in both tests. By performing a crosscheck, professionals can identify any discrepancies and assess the consistency of the measurement results, which is crucial in radon testing to provide homeowners with accurate and trustworthy information about radon levels in their environment.

While terms like "validation test," "calibration check," and "redundant test" are related to ensuring the quality of measurements, they do not specifically refer to the act of taking a second measurement to verify an initial radon test result. Validation tests focus on confirming the effectiveness of a measurement method, calibration checks are about verifying the accuracy of measurement instruments, and redundant tests typically apply to methods that reduce risk but do not directly refer to duplicate measurements taken for verification.