Mold Assessment Technician Practice Exam

What must be maintained when sampling for airborne mold and contaminants?

1. Confidentiality of samples

2. Proper chain of custody

3. Testing of samples in-house

4. Standardized sampling instruments

The correct answer is: Proper chain of custody

Maintaining a proper chain of custody is crucial when sampling for airborne mold and contaminants. This process ensures that the samples collected are legally defensible and can be relied upon for accurate analysis. The chain of custody involves documenting every step of the sample's handling and transport, from the moment it is collected until it reaches the testing laboratory. This includes recording who collected the sample, the time and date of collection, the locations from which samples were taken, and any individuals who handled the samples along the way. A well-documented chain of custody helps to prevent tampering or contamination, which could compromise the integrity and reliability of the results. It also provides a clear and traceable record that can be critical in legal or compliance scenarios where proof of accurate sampling and handling procedures may be required. Maintaining this rigorous documentation is foundational to credible mold assessment practices.