Environmental Protection Agency (EPA) Model Lead Based Paint Risk Assessor Practice Test

What type of wipe material is recommended for lead sampling?

1. Material that tears easily

2. Material that is hard for laboratory to digest

3. Material that does not tear easily and is easy for laboratory to digest

4. Any general cleaning wipe

The correct answer is: Material that does not tear easily and is easy for laboratory to digest

For lead sampling, the recommended type of wipe material is one that does not tear easily and is easy for the laboratory to digest. This is important because the integrity of the wipe is crucial for collecting accurate samples. If the material tears easily, it may compromise the sample by leaving behind particles that could contain lead or by collecting debris that does not accurately represent the surface being tested. Additionally, using a wipe that is easy for the laboratory to digest ensures that it can be analyzed effectively without interfering with the results. Laboratories require materials that can be processed without complications to provide clear and accurate measurements of lead levels. In contrast, materials that are hard for a laboratory to digest may result in difficulties during analysis or contamination of the lead samples. Therefore, choosing a wipe that meets these criteria is essential for reliable lead sampling practices.