National Metrological Technical Specifications of the People's Republic of China
Latest
JJF 1487-2014
Scope
This specification is applicable to the calibration of geometric parameters of ultrasonic flaw detection test blocks, and other non-destructive testing test blocks can also be used with reference.
JJF 1487-2014 history
2014JJF 1487-2014 Calibration Specification for Blocks used in Ultrasonic Testing