Foreword
1 Scope
2 Normative references
3 Principle
4 Significance and use
5 Terms and definitions and symbols
6 Apparatus
6.1 Ultrasonic tank with thermostatic control
6.2 Temperature measurement device
6.3 Test specimen holder
6.4 Transducers
6.5 Transducer holder
6.6 Pulse generator
6.7 Signal recording system
7 Test specimens
8 Test specimen preparation
9 Test procedure
9.1 Choice of frequency
9.2 Establishment of the test temperature
9.3 Reference test without test specimen
9.4 Measurement with the specimen
10 Calculation
10.1 Delay
10.2 Calculation of the propagation velocities
10.3 Calculation of the refracted angle theta[r]
10.4 Identification of the elastic constants C[ij]
10.5 Back calculation of the phase velocities
10.6 Polar plots of the velocity curves
10.7 Calculation of the quadratic deviation
10.8 Calculation of the engineering constants
11 Test validity
11.1 Measurements
11.2 Criterion of validity for the reliability of the C[ij]
components
12 Test report
Annex A (informative) Example of a presentation of the results
for a material with orthothropic symmetry
Bibliography