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GB/T 20935.3-2009
GB/T 20935.3-2009 Method of electromagnetic acoustic inspection for metal materials—Part 3:Standard test method for ultrasonic surface examinations using electromagnetic acoustic transducer (EMAT) techniques
Abstract
1.1 This part of GB/T 20935 introduces a method of detecting discontinuities (such as cracks, fissures, folds, cold seams, delamination, leakage, and non-fusion) on the surface of materials using electromagnetic ultrasonic transducer technology. This method can also sensitively detect near-surface defects and discontinuities within the Rayleigh wave wavelength range from the surface. 1.2 This part introduces a non-contact detection technology that uses electromagnetic fields to generate ultrasonic waves in materials.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Replaced |
| Standard Code | GB/T 20935.3-2009 |
| CCS | Non-destructive testing methods for metals |
| ICS | Nondestructive testing of metal materials |
| Implement Date | 2010-05-01 |
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