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GB/T 23901.4-2009
GB/T 23901.4-2009 Non-destructive testing—Image quality of radiographs—Part 4:Experimental evaluation of image quality values and image quality tables
Abstract
This part of GB/T 23901 specifies the determination methods for image quality index and image quality tables.
If the image quality gauge required by GB/T 23901.3 is not applicable, for example, because the absorption coefficient of the image quality gauge material differs by more than 30% from that of the material being inspected, exposure experiments must be conducted to determine an acceptable image quality index. The image quality index obtained from the exposure experiments is applicable to the exposure of all workpieces under the same irradiation conditions.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Replaced |
| Standard Code | GB/T 23901.4-2009 |
| CCS | Basic standards and general methods |
| ICS | Non-destructive testing |
| Implement Date | 2009-12-01 |
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