BS EN 583-6:2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Non-destructive testing. Ultrasonic examination Time-of-flight diffraction technique as a method for detection and sizing of discontinuities
Hardcopy , PDF
03-31-2014
English
03-31-2009
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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
Describes the general principles for the application of the Time-Of-Flight Diffraction (TOFD) technique for both detection and sizing of discontinuities in low alloyed carbon steel components.
| Committee |
WEE/46
|
| DevelopmentNote |
Supersedes BS 7706(1993) and DD ENV 583-6. (03/2009)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| EN 583-6:2008 | Identical |
| DEFSTAN 02-729(PT5)/3(2013) : 2013 | REQUIREMENTS FOR NON-DESTRUCTIVE EXAMINATION METHODS - PART 5: ULTRASONIC |
| EN 12668-2:2010 | Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 2: Probes |
| CEN/TS 14751:2004 | Welding - Use of time-of-flight diffraction technique (TOFD) for examination of welds |
| EN 12668-1:2010 | Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 1: Instruments |
| EN 473:2008 | Non-destructive testing - Qualification and certification of NDT personnel - General principles |
| EN 583-2:2001 | Non-destructive testing - Ultrasonic examination - Part 2: Sensitivity and range setting |
| EN 12668-3:2013 | Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 3: Combined equipment |
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