Purpose This specification covers the requirements for inspection of ground chromium plated surfaces for grinder-induced damage to the chromium plate and substructure. The specification also provides users with criteria for distinguishing between such damage and acceptable indications inherent to the chromium plate. Application This procedure is used for nondestructive testing of heat treated@ high strength (180 ksi (1240 MPa) or higher tensile strength)@ low-alloy steel parts that have been chromium plated and subsequently ground@ but usage is not limited to such applications.