What does "friable asbestos" refer to?

Friable asbestos refers to asbestos materials that can be easily crumbled, pulverized, or powdered through hand pressure. This characteristic means that friable asbestos can release fibers into the air, posing a significant risk of exposure to individuals. The ability of friable asbestos to break down more readily than other forms makes it particularly hazardous, as the fibers can become airborne and inhaled.

In contrast, non-friable asbestos is typically bonded with other materials, making it less likely to release fibers unless it is disturbed, damaged, or improperly handled. Proper sealing or containment of asbestos materials does not classify the material as friable either, nor does the quantity of asbestos present determine its friability. Therefore, the definition specifically points to the physical state of the material as being easily crumbled and resulting in a higher potential for health risks.