The Barcol Impressor is a simple, portable hardness tester that is used by industrial and commercial customers. The Impressor has been a standard in the industry for testing raw material or field testing of final products, such as fiberglass panels, plastic extrusions, aluminum profiles, and related materials. Compliant with the National Fire Protection Association, NFPA1932, the Impressor is a proven device for field testing of fire ladders after being exposed to high temperatures.