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ASTM E3168 PDF
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Standard Practice for Determining Low-Contrast Visual Acuity of Radiographic Interpreters
| Published by | Publication Date | Number of Pages |
| ASTM | 12/01/2020 | 9 |
ASTM E3168 – Standard Practice for Determining Low-Contrast Visual Acuity of Radiographic Interpreters
1.1”This practice details the procedure for determining the low-contrast visual acuity of a radiographic interpreter by evaluating the ability of the individual to detect linear images of varying radiographic noise, contrast, and sharpness. No statement is made regarding the applicability of these images to evaluate the competence of a radiographic interpreter. There is no correlation between these images of slit phantoms and the ability to detect cracks or other linear features in an actual radiographic examination. The test procedure follows from work performed by the National Institute of Standards and Technology presented in NBS Technical Note 1143, issued June 1981.
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