This part of ISO 7500 specifies the verification of testing machines used for uniaxial creep testing in tension in accordance with ISO 204. The verification consists of a general inspection of the testing machine, and a verification of the force applied by the testing machine. This part of ISO 7500 applies to dead-weight machines, lever-type creep testing machines and direct-springloading machines. Machines with a force-measuring system1 ) should be verified in accordance with ISO 7500-1, Metallic materials -Verification of static uniaxial testing machines - Part 1: Tension/compression testing machines - Verification and calibration of the force-measuring system.