CATEGORY II non-friable ACM

Asbestos Cement Pipe and Sheet Products

Asbestos-cement (A-C) pipe has been widely used for water and sewer mains and occasionally used as electrical conduits, drainage pipe, and vent pipes. A-C sheet, manufactured in flat or corrugated panels and shingles (transite board), has been used primarily for roofing and siding, but also for cooling tower fill sheets, canal bulkheads, laboratory tables, and electrical switching gear panels.

If these ACM are crumbled, pulverized or reduced to a powder, they are friable and thus covered by the Asbestos NESHAP. Broken edges of these material typically are friable. The fractured surface should be rubbed to see if it produces powder.

If Category II non-friable ACM has not crumbled, been pulverized or reduced to powder and will not become so during the course of demolition/renovation operations, it is considered non-friable and therefore is not subject to Asbestos NESHAP. However, if during the demolition or renovation activity it becomes crumbled, pulverized or reduced to powder, it is covered by the Asbestos NESHAP.