Measurement methods for piezoelectric materials are described in a number of different standard documents.
We hope you find the following useful.
If you have any questions or need advice, please contact us.
IEC standard 60483. (1976): Guide to Dynamic Measurements of Piezoelectric Ceramics With High Electromechanical Coupling
Standard on Piezoelectricity: ANSI/IEEE Std. 176, (1987)