GB/T 31554-2015 "Metal and Non-metallic Substrate Nonmagnetic Metal Overlay, Overlay Film thickness measurement Phase-sensitive eddy current method", standardizes the use of phase-sensitive eddy current method for the measurement of nonmagnetic metal overlay Film thickness on metals and Non-metallic substrates. It clarifies the measurement principle, equipment, operation steps, result calculation, etc., and provides a unified standard for the film thickness measurement of the relevant overlay, which helps to achieve accurate detection and ensure the mass of the overlay and product performance.
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 | A29 | ICS | 25.220.40 |
| Release Date | 2015-05-15 00:00:00 | Implementation Date | 2016-01-01 00:00:00 |