GB/T 32660.3-2016 "Metallic materials - Webster hardness test - Part 3: Calibration of reference hardness blocks" specifies the calibration requirements for reference hardness blocks used in Webster hardness testing. It covers the material requirements, calibration equipment, calibration methods, calibration accuracy, and uncertainty evaluation for reference hardness blocks, and clarifies the calibration procedures and technical indicators for reference blocks of different hardness grades. This standard is applicable to the calibration of reference hardness blocks in Webster hardness testing, providing a metrological traceability basis for the calibration of Webster hardness testers and the accuracy of hardness test results, thereby ensuring the reliability and comparability of test data.
| Status | Active | ||
|---|---|---|---|
| CCS | N71 | ICS | 19.060;77.040.10 |
| Release Date | 2016-06-14 00:00:00 | Implementation Date | 2017-01-01 00:00:00 |