T9074-AS-GIB-010/271 Rev 1
3.4.16 Availability of Radiographs............................................................................................................................ 3-6 3.5 PENETRAMETERS. ................................................................................................................................................. 3-7 3.5.1 Penetrameter Material. ..................................................................................................................................... 3-7 3.5.1.1 Dissimilar Metal Welds. ............................................................................................................................. 3-8 3.5.1.1.1 Dissimilar Metal Welds of Same Group. ..............................................................................................3-8 3.5.1.1.2 Dissimilar Metal Welds of Different Groups. .......................................................................................3-8 3.5.1.2 Other Metals. .............................................................................................................................................. 3-8 3.5.2 Penetrameter Dimensions. ................................................................................................................................ 3-8 3.5.3 Penetrameter Identification............................................................................................................................... 3-8 3.5.3.1 Lead Number Placement for Circular Penetrameters..................................................................................3-8 3.5.3.2 Identification for Special Quality Levels. ...................................................................................................3-8 3.5.4 Penetrameter Selection. .................................................................................................................................... 3-8 3.5.4.1 Welds. ......................................................................................................................................................... 3-8 3.5.4.2 Castings and Forgings................................................................................................................................. 3-9 3.5.5 Number, Location, and Placement of Penetrameters. .....................................................................................3-10 3.5.5.1 Penetrameter Location. ............................................................................................................................. 3-10 3.5.5.1.1 Film-Side Penetrameter Technique (Double-Wall Exposure). ...........................................................3-10 3.5.5.1.2 Film-Side Penetrameter Technique (Single-Wall Exposure). .............................................................3-10 3.5.5.1.3 Separate Block Penetrameter Technique. ...........................................................................................3-10 3.5.5.2 Requirements for Castings and Forgings. .................................................................................................3-10 3.5.5.3 Requirements for Welds. .......................................................................................................................... 3-11 3.5.5.3.1 Penetrameter Image Position. .............................................................................................................3-11 3.5.5.3.2 Penetrameter Image Location. ............................................................................................................3-11 3.5.5.3.3 Penetrameters on Weld. ...................................................................................................................... 3-11 3.5.5.3.4 Penetrameter Orientation. ................................................................................................................... 3-12 3.5.5.3.5 Obstructions. ....................................................................................................................................... 3-12 3.5.5.3.6 Tapered and Fillet Welds.................................................................................................................... 3-13 3.5.5.4 Radiography of Parts. ............................................................................................................................... 3-13 3.6 SHIMS. ..................................................................................................................................................................... 3-13 3.7 RADIOGRAPHIC QUALITY LEVELS..................................................................................................................3-14 3.7.1 X-ray Radiography. ........................................................................................................................................ 3-15 3.7.2 Radioisotope Radiography. ............................................................................................................................ 3-15 3.8 SINGLE-WALL AND DOUBLE-WALL RADIOGRAPHY. .................................................................................3-15 3.8.1 Single-Wall Radiography. .............................................................................................................................. 3-15 3.8.2 Double-Wall Radiography..............................................................................................................................3-15 3.8.2.1 Double-Wall Exposure/Single-Wall Viewing...........................................................................................3-15 3.8.2.2 Double-Wall Exposure/Double-Wall Viewing. ........................................................................................3-15 3.9 RADIOGRAPHY OF REPAIR WELDS. ................................................................................................................3-16 3.10 RADIOGRAPHY OF CASTINGS AND FORGINGS. .........................................................................................3-16 3.11 RADIOGRAPHIC FILM OWNERSHIP. ..............................................................................................................3-16 CHAPTER 4 MAGNETIC PARTICLE TESTING ................................................................................................................4-1 4.1 INTENDED USE. ...................................................................................................................................................... 4-1 4.2 DEFINITIONS. .......................................................................................................................................................... 4-1 4.2.1 Relevant Indications. ........................................................................................................................................ 4-1 4.2.2 Indication.......................................................................................................................................................... 4-1 4.2.3 Non-Relevant Indications. ................................................................................................................................ 4-1 4.3 MAGNETIC PARTICLE INSPECTION REQUIREMENTS. ..................................................................................4-1 4.3.1 General Requirements. ..................................................................................................................................... 4-1 4.3.1.1 Method. ...................................................................................................................................................... 4-1 4.3.1.1.1 Lighting in Test Area. ........................................................................................................................... 4-1 4.3.1.2 Procedure. ................................................................................................................................................... 4-2 4.3.1.3 Inspection Through Coatings......................................................................................................................4-2
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