This part of GB/T 17394 specifies the test principle, test instruments, test samples, test procedures, measurement uncertainties of test results, and test reports. This section applies to Leeb hardness testers with D, DC, S, E, D+15, DL, C and G impact devices. See Table 1.
GB/T 17394.1-2014 Referenced Document
GB/T 17394.2 Metallic materials—Leeb hardness test—Part 2: Verification and calibration of hardness testers*, 2022-07-11 Update
GB/T 17394.3 Metallic materials—Leeb hardness test—Part 3: Calibration of reference test blocks*, 2022-07-11 Update