New York State Asbestos Investigator Practice Exam

What does the acronym NOB refer to in asbestos sampling?

1. Non-overlapping bonds

2. Non-friable - organically bound

3. Non-observed biotopes

4. Non-organic barriers

The correct answer is: Non-friable - organically bound

The acronym NOB refers specifically to "Non-friable - organically bound," which is a crucial term in asbestos sampling and analysis. In asbestos-related work, particularly in building inspections and environmental assessments, understanding the characteristics of asbestos-containing materials is vital. Non-friable materials that are organically bound contain asbestos that is mixed or encapsulated in a matrix of other materials, making them less likely to release fibers into the air compared to friable materials, which can crumble easily and pose a higher risk of airborne asbestos exposure. This distinction is particularly important for investigators and remediation professionals because it helps determine the proper handling and management procedures for different types of asbestos-containing materials. Knowing whether a material is non-friable or friable influences health risk assessments and the selection of appropriate abatement strategies during an inspection. The other options do not accurately reflect the terminology used in asbestos assessments, as they pertain to unrelated concepts or are not established terms within the field of asbestos management.