Specifies performance requirements and procedures for testing secure storage units of the type intended for use in commercial, industrial, mercantile, financial and insurance institutions, and the like, and that are relied upon to protect the contents from intrusion and forced removal. The secure storage units include free-standing safes, built-in safes (floor and wall), strongroom doors and strongrooms (with or without a door). This Standard excludes electronic packages (other than electronic locks) and other devices that may be attached to the secure storage unit or vault. These requirements are intended to establish the resistance to forced removal and intrusion resistant rating of secure storage units according to attack by prescribed tools. This Standard does not cover tests for fire resistance.