BS EN 12668-2:2010

BS EN 12668-2:2010 Non-destructive testing. Characterization and verification of ultrasonic examination equipment. Probes BS EN 12668-2 is a European Standard which covers probes used for ultrasonic non-destructive examination in the following categories with centre frequencies in the range 0,5 MHz to 15 MHz, focusing and without focusing means: a) Single or dual transducer contact probes generating compressional or shear waves; b) Single transducer immersion probes. Where material-dependent ultrasonic values are specified in this document they are based on steels having a sound velocity of (5 920 ± 50) m/s for longitudinal waves, and (3 255 ± 30) m/s for transverse waves. Periodic tests for probes are not included in this document. Routine tests for the verification of probes using on-site methods are given in EN 12668-3. If parameters in addition to those specified in EN 12668-3 are to be verified during the probe's life time, as agreed upon by the contracting parties, the methods of verification for these additional parameters should be selected from those given in this document. Contents of BS EN 12668-2: Foreword 1 Scope 2 Normative references 3 Terms and definitions 4 General requirements for compliance 5 Technical specification for probes 6 Test equipment 7 Performance requirements for probes Annex A (normative) Calculation of near field length of non-focusing probes Annex B (informative) Calibration block for angle-beam probes Bibliography