GB/T 230.3-2022 "Metallic materials—Rockwell hardness test—Part 3: Calibration of reference blocks" supplements the environmental temperature requirements for the standard machine and indenter, the measurement system resolution, and the expanded uncertainty requirements. It adjusts the dwell time for test forces and relevant calculation formulas, improves the content of calibration certificates, and is used for the calibration of reference blocks for Rockwell hardness tests. The standard aims to regulate the calibration process and ensure the accuracy and comparability 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 |
