T9074-AS-GIB-010/271 Rev 1
6.3.5 Calibration. .......................................................................................................................................................6-2 6.4 EQUIPMENT. ............................................................................................................................................................6-3 6.5 GENERAL REQUIREMENTS. .................................................................................................................................6-3 6.5.1 Equipment Requirements. .................................................................................................................................6-3 6.5.1.1 Basic Instrument Qualification - A-Scan Display Instruments....................................................................6-3 6.5.1.1.1 Vertical Linearity. .................................................................................................................................6-3 6.5.1.1.2 Horizontal Linearity. .............................................................................................................................6-3 6.5.1.1.3 Resolution. ............................................................................................................................................6-3 6.5.1.1.4 Attenuation............................................................................................................................................6-3 6.5.1.2 Basic Instrument Qualification - Thickness Gauge. ....................................................................................6-3 6.5.1.3 Frequency of Basic Instrument Qualification..............................................................................................6-3 6.5.1.4 Shear Wave Transducers. ...........................................................................................................................6-3 6.5.2 Inspection Procedure. .......................................................................................................................................6-3 6.5.2.1 Procedure Requalification...........................................................................................................................6-4 6.5.3 Discontinuity Evaluation. .................................................................................................................................6-4 6.5.4 Records. ............................................................................................................................................................6-4 6.6 TEST METHODS. .....................................................................................................................................................6-4 6.6.1 Forged, Wrought, and Extruded Material. ........................................................................................................6-4 6.6.1.1 Ring Forgings. ............................................................................................................................................6-5 6.6.1.1.1 Shear Wave Tests of Ring Forgings......................................................................................................6-5 6.6.1.1.1.1 Test Calibration, Shear Wave. ........................................................................................................6-5 6.6.1.1.1.2 Testing, Shear Wave. ......................................................................................................................6-6 6.6.1.1.2 Longitudinal Wave Tests of Ring Forgings. .........................................................................................6-6 6.6.1.1.2.1 Test Calibration, Longitudinal Wave. .............................................................................................6-6 6.6.1.1.2.2 Testing, Longitudinal Wave. ...........................................................................................................6-6 6.6.1.2 Rectangular Forgings. .................................................................................................................................6-6 6.6.1.2.1 Test Calibration, Longitudinal Wave. ...................................................................................................6-6 6.6.1.2.2 Testing - Longitudinal Wave.................................................................................................................6-6 6.6.1.3 Round and Multi-Sided Forged or Wrought Bars Including Disc or Pancake Forgings. ............................6-7 6.6.1.3.1 Test Calibration, Longitudinal Wave. ...................................................................................................6-7 6.6.1.3.2 Testing - Longitudinal Wave.................................................................................................................6-7 6.6.2 Plate and Sheet..................................................................................................................................................6-7 6.6.2.1 Shear Wave Testing Technique. .................................................................................................................6-7 6.6.2.1.1 Test Calibration, Shear Wave. ..............................................................................................................6-7 6.6.2.1.2 Grid Test Procedure. .............................................................................................................................6-7 6.6.2.1.3 Continuous Scanning Procedure. ..........................................................................................................6-7 6.6.2.2 Longitudinal Wave Testing Technique. ......................................................................................................6-7 6.6.2.2.1 Testing Calibration, Longitudinal Wave. ..............................................................................................6-7 6.6.2.2.2 Test Procedures.....................................................................................................................................6-7 6.6.2.2.2.1 Continuous Method. ........................................................................................................................6-7 6.6.2.2.2.2 Static Method. .................................................................................................................................6-7 6.6.3 Pipes and Tubes. ...............................................................................................................................................6-8 6.6.3.1 Scanning Technique. ...................................................................................................................................6-8 6.6.3.2 Test Calibration, Radial Defects Detection.................................................................................................6-8 6.6.3.3 Test, Radial Defects. ...................................................................................................................................6-8 6.6.4 Ultrasonic Inspection of Weldments. ................................................................................................................6-8 6.6.4.1 Scope. .........................................................................................................................................................6-8 6.6.4.2 General Requirements.................................................................................................................................6-8 6.6.4.2.1 Application............................................................................................................................................6-8 6.6.4.2.2 Surface Finish. ......................................................................................................................................6-8 6.6.4.2.3 Limitations. ...........................................................................................................................................6-8 6.6.4.2.4 Calibration Standards. ...........................................................................................................................6-8 6.6.4.2.4.1 Butt Welds, Corner Welds, Tee Welds for Discontinuities into the Through Member, and Tee Weld Volumetric Inspection. ...........................................................................................................6-8
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