What characteristics are important when checking asbestos containing material (ACM)?

When evaluating asbestos-containing materials (ACM), it is crucial to consider both the hardness and texture of the material. These characteristics can provide valuable insights into the type of ACM present and its potential risk to health. Hardness is an important factor because it may indicate how likely the material is to be disturbed and release asbestos fibers into the air. For example, softer materials might be easier to damage and more likely to release fibers during handling or renovation activities. Additionally, texture can also influence the likelihood of fiber release; rough or friable materials are often more hazardous than solid, non-friable types.

In the context of asbestos safety, focusing solely on appearance does not account for other important factors that may impact safety. Similarly, while odor and sound when disturbed might provide some information, they are not reliable indicators of the presence or condition of asbestos. Age and historical use of the material can offer context about its potential risk but do not directly inform about the physical condition of the ACM at the present time. Therefore, assessing hardness and texture gives a more comprehensive view of the safety and handling considerations for ACM.