GB/T 17394.3-2022 "Metallic materials — Leeb hardness test — Part 3: Calibration of reference blocks" specifies the calibration methods and traceability procedures for reference blocks used in the verification of Leeb hardness testers. It defines the hardness range, dimensional specifications, and surface quality requirements for reference blocks, adjusts the calculation method for hardness uniformity and calibration techniques, and supplements the calibration methods for standard machines based on non-Leeb hardness principles. This standard is applied to the calibration of reference Leeb hardness blocks to ensure the accuracy and consistency of hardness test values.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | N71 | ICS | 19.060;77.040.10 |
| Release Date | 2022-07-11 00:00:00 | Implementation Date | 2023-02-01 00:00:00 |
