What are three minimum requirements for verifying proper test conditions during a radon test?

Informing the client of the required test conditions is crucial for ensuring the accuracy and reliability of radon test results. Proper test conditions include maintaining consistent environmental factors such as temperature, humidity, and ventilation, which can significantly impact radon levels detected during testing.

By educating clients about these conditions, it ensures that they understand the importance of keeping windows closed, avoiding high air circulation, and maintaining specific temperature ranges. This communication lays the foundation for a successful radon measurement, as clients are better prepared to maintain these conditions throughout the duration of the test.

In contrast, the other options do not directly contribute to the establishment of proper testing conditions. Providing a financial incentive or submitting results to local authorities is not relevant to the integrity of the testing environment itself. Conducting a follow-up interview may have benefits for communication or understanding the test results, but it does not affect the immediate test conditions during the radon measurement process.