The JJF (Mechanical) 048-2009 standard provides a calibration specification for abrasive tool Rockwell hardness testers. The standard specifies in detail the calibration conditions, calibration items, calibration methods and expression of calibration results of the hardness tester, ensuring the accuracy and reliability of the hardness tester. Suitable for newly manufactured, used and repaired hardness testers, providing a standardized calibration process for abrasive tool hardness measurement.
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 | (N75) 工艺试验机与包装试验机 | ICS | |
| Release Date | Implementation Date | ||