The Barcol Impressor or Hardness Testeris a precision instrument thatmeets the following ASTM (American Society for Testing and Materials) standards: E140-97; D2583-75; B648-78: E140-97 Standard Hardness Conversion Tables for Metals; D2583-75 Standard Method of Testing for Indentation Hardness of Plastics by means of a Barcol Impressor; B648-78 Standard Method of Testing for Indentation Harness of Aluminum Alloys by means of a Barcol Impressor.

Fire Department version: The Barcol Impressor meets the following NFPA (National Fire Protection Association) standards: NFPA 1931 Design of and Design Verification Tests for Fire Department Ground Ladders; NFPA 1932 Use, Maintenance, and Service Testing of Fire Department Ground Ladders.