Radiographic Film Interpretation

What is RTFI?

     Art of extracting maximum information from radiography image. This requires subjective judgment of the interpreter
     Interpret is to give the meaning of to explain. Evaluate is to determine the worth of something. Indication is a density change appearing on a radiograph. False indications are film artifacts, screen Problems, fog, scatter x-ray diffraction. Discontinuity is a break in the test specimen’s structural continuity. Defect is a condition that renders the specimen unsuitable for intended service.

Factors affecting the interpretation of test results:

     1. Type of materials being welded.

     2. Type of weld and joint preparation.

     3. Welding processes.

     4. Radiographic process.

     5. Radiographic technique.

     6. The applicable code or standard.