GB/T 231.3-2022 focus on the calibration of standard Hardness blocks in brinell hardness testing of metal materials. The standard specifies the calibration environment, such as temperature and Humidity requirements. Explain the calibration process in detail, from the selection and cleaning of standard Hardness blocks to the operation and testing according to specific specifications on the Brinell hardness tester, strictly control each step. High requirements are placed on the accuracy of calibration equipment, such as the accuracy of hardness gauge force value and the accuracy of indenter size. Accurately calibrated Hardness blocks are the cornerstone of the accuracy of brinell hardness testing. They provide reliable traceability for brinell hardness measurement of metal materials and help quality control in the metal industry.
| 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 |