TBA - NAVSEA TECHNICAL PUBLICATION

T9074-AS-GIB-010/271 Rev 1

3.4.14 Interpretation of Radiographs. To aid in the proper interpretation of radiographs, a sketch, drawing, written procedure, or equivalent record shall be prepared to show the setup used to make each radiograph. The information shall accompany each radiograph (or a group of radiographs if the same information applies). Reference to a standard setup is acceptable if descriptions of this standard setup are made available. The information shall include: a. Number of films and film type. b. Location of each film on the radiographed item. c. Orientation of location markers. d. Location of radiation source, including source-to-film distance and approximate angle of beam. e. The kilovoltage and focal spot size (for X-ray machines). f. The isotope type, intensity (in curies), and physical dimensions.

g. Type of material, and material thickness. h. Shim or block material, and thickness. i. Type of weld joint, for example, butt with backing ring.

j. Whether original or repair. k. Part and drawing number. l. Material groups, penetrameter sizes and types (MIL-type or ASTM-type) and the required quality level.

m. Source-side or film-side penetrameter. n. Single-wall or double-wall viewing. o. Type and thickness of intensifying screens and filters. p. L ocation of lead letter “B”. q. Applicable acceptance standards.

r. Signature of the radiographic operator. s. Approved procedure identification.

3.4.15 Radiographic Records. Radiographic records (see 1.8) shall contain the following: a. The information specified in 3.4.14. b. Notation of acceptable and rejectable discontinuities. Any questionable discontinuity in the area of interest that is due to a surface condition shall be visually verified and noted. c. Date of interpretation. d. Disposition (accept/reject) of the item radiographed. e. Signature of the radiographic inspector. 3.4.16 Availability of Radiographs. Radiographs and records shall be made available to the Government inspector upon request.

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