This International Standard specifies uniform methods for the testing and performance evaluation of metallic tube connections, stud ends for ports and flange connections for use in hydraulic fluid power applications. It does not apply to the testing of hydraulic quick-action couplings, which is specified in ISO 7241-2. Tests specified in this International Standard are independent of each other and describe the method to be carried out for each test; test requirements and performance criteria are contained in the corresponding component International Standard. For qualification of the connector, the minimum number of samples specified in this International Standard is tested, unless otherwise specified in the relevant connector standard or as agreed upon by the manufacturer and the user. This document has been prepared by Technical Committee ISO/TC 131 "Fluid power systems" (secretariat: ANSI, USA), SC 4 "Connectors and similar products and components" (secretariat: ANSI, USA) of the International Organization for Standardization (ISO) and has been adopted without alterations as EN 19879:2010 by Technical Committee ECISS/TC 110 "Steel tubes, and iron and steel fittings" (secretariat: UNI, Italy). Regarding the German Collaboration, the responsible Working Committee is NA 082-00-07 AA "Rohrverschraubungen" ("Tube connections") at the Piping and Boiler Plant Standards Committee (NARD).