Indoor Air sciences CSMI Practice Exam

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If a material contains 0.5% asbestos by weight, how is it classified according to regulations?

Yes, because it is above 0.1%
No
Only if it is amphibole type
Yes, any amount makes it ACM

The correct answer is: No

A material that contains 0.5% asbestos by weight is classified according to specific regulatory thresholds. Regulations state that a material is considered "asbestos-containing material" (ACM) if it contains 1% or more asbestos by weight. Since 0.5% is below this threshold, the material does not meet the criteria for classification as ACM. Additionally, it's important to note that the specific type of asbestos (whether it is chrysotile, amphibole, or another form) does not change this classification, as the regulation is primarily concerned with the percentage of asbestos by weight rather than its type. Therefore, any material with less than 1% asbestos does not fall under the ACM designation. Understanding these classification criteria is essential for appropriate handling and regulatory compliance regarding asbestos materials.