National Metrological Technical Specifications of the People's Republic of China
Latest
JJF 1458-2014
Scope
This specification is applicable to the calibration of electromagnetic yoke magnetic particle flaw detectors and crossed yoke (rotating magnetic field) flaw detectors. It is not applicable to the calibration of AC and DC (half-wave rectification or full-wave rectification) magnetic particle flaw detectors.
JJF 1458-2014 history
2014JJF 1458-2014 Calibration Specification for Magnetic Yoke Detectors