When is ACM most likely to release asbestos fibers?
Damaged ACM is more likely to release fibers than non-damaged ACM. In a 1984 survey, EPA found that approximately 66 percent of those buildings that contained asbestos contained damaged ACM. If ACM, when dry, can be crumbled by hand pressure — a condition known as “friable” — it is more likely to release fibers than if it is “non-friable.” Fluffy, spray-applied asbestos fireproofing material is generally considered “friable.” Some materials which are considered “non-friable,” such as vinyl-asbestos floor tile, can also release fibers when sanded, sawed or otherwise aggressively disturbed. Materials such as asbestos cement pipe can release asbestos fibers if broken or crushed when buildings are demolished, renovated or repaired. ACM which is in a heavy traffic area, and which is therefore often disturbed, is more likely to release fibers than ACM in a relatively undisturbed area.
Damaged ACM is more likely to release fibers than non-damaged ACM. In a 1984 survey, EPA found that approximately 66 percent of those buildings that contained asbestos contained damaged ACM. If ACM, when dry, can be crumbled by hand pressure — a condition known as “friable” — it is more likely to release fibers than if it is “non-friable.” Fluffy, spray-applied asbestos fireproofing material is generally considered “friable.” Some materials which are considered “non-friable,” such as vinyl-asbestos floor tile, can also release fibers when sanded, sawed or otherwise aggressively disturbed. Materials such as asbestos cement pipe can release asbestos fibers if broken or crushed when buildings are demolished, renovated or repaired. ACM which is in a heavy traffic area, and which is therefore often disturbed, is more likely to release fibers than ACM in a relatively undisturbed area. How can asbestos be identified? While it is often possible to “suspect” that a material or product is/or c
