EN 583-6:2008

Foreword
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
   3.1 Terms and definitions
   3.2 Abbreviations
   3.3 Symbols
4 General
   4.1 Principle of the technique
   4.2 Requirements for surface condition and couplant
   4.3 Materials and process type
5 Qualification of personnel
6 Equipment requirements
   6.1 Ultrasonic equipment and display
   6.2 Ultrasonic probes
   6.3 Scanning mechanisms
7 Equipment set-up procedures
   7.1 General
   7.2 Probe choice and probe separation
        7.2.1 Probe selection
        7.2.2 Probe separation
   7.3 Time window setting
   7.4 Sensitivity setting
   7.5 Scan resolution setting
   7.6 Setting of scanning speed
   7.7 Checking system performance
8 Interpretation and analysis of data
   8.1 Basic analysis of discontinuities
        8.1.1 General
        8.1.2 Characterisation of discontinuities
        8.1.3 Estimation of discontinuity position
        8.1.4 Estimation of discontinuity length
        8.1.5 Estimation of discontinuity depth and height
   8.2 Detailed analysis of discontinuities
        8.2.1 General
        8.2.2 Additional scans
        8.2.3 Additional algorithms
9 Detection and sizing in complex geometries
10 Limitations of the technique
   10.1 General
   10.2 Accuracy and resolution
        10.2.1 General
        10.2.2 Errors in the lateral position
        10.2.3 Timing errors
        10.2.4 Errors in sound velocity
        10.2.5 Errors in probe centre separation
        10.2.6 Spatial resolution
   10.3 Dead zones
11 TOFD examination without data recording
12 Test procedure
13 Test report
Annex A (normative) - Reference blocks
Bibliography