T9074-AS-GIB-010/271 Rev 1
3.3.1 Extent of Radiographic Inspection. All acquisition documents, drawings, or both shall specify the extent of radiographic inspection, when it is required. This information shall include the number of areas and items to be radiographed, the point in fabrication when radiography shall be performed, the quality level of inspection, and the acceptance standard to be applied. 3.3.1.1 Radiographic Shooting Sketch (RSS) for Castings. The casting designer shall select and identify, in accordance with AWS A2.4, areas requiring radiography on the engineering drawing. The contractor or activity performing the inspection shall prepare the RSS which shows film placements and radiation directions to assure adequate radiographic coverage as specified by the engineering drawing. The RSS shall be validated by a signature of a certified radiographic inspector. The requirements of 3.4.14 herein provide specific detailed requirements that shall be contained on the RSS. 3.3.1.2 Inspection of Heat-Treated Items. Radiographic inspection may be performed at the following times: a. Before or after stress relief. b. Before or after heat treatment where the heat treatment does not require quenching of the item in a liquid medium. 3.3.1.3 Inspection of Machined Items. Castings or forgings may be radiographed in the as-cast, as-forged, or rough machined conditions, provided the requirements of 3.5.4.2 are met. 3.3.1.4 Inspection of Weldments. Weldments that require contouring or machining may be radiographed in the as-welded condition provided the surface condition does not interfere with the interpretation of the radiographs and the penetrameter selection is based on the requirements of 3.5.4.
3.3.2 Radiographic Procedure. Radiographic inspection procedures shall contain as a minimum, the following elements.
3.3.2.1 Minimum Radiographic Procedure Requirements. a. X-ray machine information. (1) Model and type.
(2) Manufacturer. (3) Focal spot size. (4) Voltage rating. b. Isotope source information. (1) Type of isotope.
(2) Source dimensions (maximum).
c. Film processing methods. d. Film type. e. Viewing facilities. f. Film density requirements including density-measuring equipment used. g. Method of providing film identification as specified in 3.4.8. h. The requirements of this document that apply.
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