GB/T 16825.1-2022 "Metallic materials—Calibration and verification of static uniaxial testing machines—Part 1: Tension/compression testing machines—Calibration and verification of the force-measuring system" specifies the methods for the inspection and calibration of tension and/or compression testing machines, including general inspection of the testing machine and force-applying accessories, calibration of the force-measuring system, and confirmation of performance parameter grades. It applies to relevant operations of force-measuring systems for various types of such testing machines, focusing solely on static inspection and calibration, and is not applicable to high-speed or dynamic testing. Calibration shall be performed using traceable standard force-measuring instruments or qualified weights, with details specified for the distribution of force measurement points, temperature and environmental requirements, and the resolution of indicating devices.