T9074-AS-GIB-010/271 Rev 1
1.7.3 Approval. ..........................................................................................................................................................1-5 1.7.4 Transfer.............................................................................................................................................................1-5 1.8 INSPECTION RECORDS..........................................................................................................................................1-5 1.8.1 General. ............................................................................................................................................................1-5 1.8.2 Inspection Record Attributes that Do Not Change............................................................................................1-5 1.8.3 Signature. ..........................................................................................................................................................1-5 1.8.4 Maintenance of Inspection Records. .................................................................................................................1-5 CHAPTER 2 APPLICABLE DOCUMENTS .........................................................................................................................2-1 2.1 GOVERNMENT DOCUMENTS...............................................................................................................................2-1 2.1.1 Specifications, Standards, and Handbooks. ......................................................................................................2-1 2.1.2 Other Government Documents, Drawings and Publications.............................................................................2-1 2.2 NON-GOVERNMENT PUBLICATIONS. ................................................................................................................2-2 2.3 ORDER OF PRECEDENCE. .....................................................................................................................................2-3 CHAPTER 3 RADIOGRAPHIC TESTING ...........................................................................................................................3-1 3.1 INTENDED USE........................................................................................................................................................3-1 3.2 DEFINITIONS. ..........................................................................................................................................................3-1 3.2.1 Material Thickness (T m ). ..................................................................................................................................3-1 3.2.2 Maximum Effective Radiation Source Dimension............................................................................................3-1 3.2.3 Multiple Film Technique. .................................................................................................................................3-1 3.2.4 Specimen Thickness (T s ). .................................................................................................................................3-1 3.3 GENERAL REQUIREMENTS. .................................................................................................................................3-1 3.3.1 Extent of Radiographic Inspection....................................................................................................................3-2 3.3.1.1 Radiographic Shooting Sketch (RSS) for Castings. ....................................................................................3-2 3.3.1.2 Inspection of Heat-Treated Items................................................................................................................3-2 3.3.1.3 Inspection of Machined Items. ....................................................................................................................3-2 3.3.1.4 Inspection of Weldments. ...........................................................................................................................3-2 3.3.2 Radiographic Procedure. ..................................................................................................................................3-2 3.3.2.1 Minimum Radiographic Procedure Requirements. .....................................................................................3-2 3.4 RADIOGRAPHY REQUIREMENTS........................................................................................................................3-3 3.4.1 Direction of Radiation. .....................................................................................................................................3-3 3.4.2 Screens and Filters. ...........................................................................................................................................3-3 3.4.3 Film...................................................................................................................................................................3-3 3.4.3.1 Film Quality. ...............................................................................................................................................3-3 3.4.3.2 Film Density................................................................................................................................................3-4 3.4.3.3 Multiple Film Techniques. ..........................................................................................................................3-4 3.4.4 Filmless Techniques. ........................................................................................................................................3-4 3.4.5 Radiation Sources. ............................................................................................................................................3-4 3.4.6 Source-To-Film Distance..................................................................................................................................3-4 3.4.6.1 Calculations. ...............................................................................................................................................3-4 3.4.6.2 Film-Specimen Contact...............................................................................................................................3-4 3.4.6.3 Reduced Source-To-Film Distance. ............................................................................................................3-4 3.4.7 Radiographic Location Markers. ......................................................................................................................3-5 3.4.8 Film Identification. ...........................................................................................................................................3-5 3.4.9 Maintenance of Radiographic Records. ............................................................................................................3-5 3.4.10 Darkroom Facilities. .......................................................................................................................................3-5 3.4.11 Film Viewing Facilities...................................................................................................................................3-5 3.4.11.1 Film Viewing Equipment. .........................................................................................................................3-5 3.4.12 Surface Preparation of Components and Welds Prior to Radiography. ..........................................................3-5 3.4.13 Safety. .............................................................................................................................................................3-5 3.4.14 Interpretation of Radiographs. ........................................................................................................................3-6 3.4.15 Radiographic Records.....................................................................................................................................3-6
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