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SPECIFICATIONS

ASTM E1255 section 5.2 indicates that the purchaser and the supplier of radioscopic examination systems must agree mutually upon a written procedure with the applicable requirements. Other recommendations are as follows:

1. Equipment qualifications (system features that must be qualified to ensure adequate performance).
   
2. Test-object scan plan: Test-object orientations, motions, and speed of manipulation necessary to ensure that the examination will be thorough.
   
3. Radioscopic parameter (focal-spot size, source-to-object distance, object-to-image plane distance, etc.).
   
4. Image processing parameter (electronic noise reduction, contrast enhancement).
   
5. Image display parameters (brightness, contrast focus, and image linearity).
   
6. Accept/reject criteria (expected discontinuity types and rejection levels).
   
7. Performance evaluation (qualification tests to ensure system capabilities).
   
8. Image archiving requirements (for preserving and recalling the image at a later date).
   
9. Minimum operator qualification.