IEC 60758:2016

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Specification for synthetic quartz
  crystal
5 Specification for lumbered synthetic
  quartz crystal
6 Inspection rule for synthetic quartz
  crystal and lumbered synthetic quartz
  crystal
7 Guidelines for the use of synthetic quartz
  crystal for piezoelectric applications
Annex A (informative) - Frequently used sampling
        procedures
Annex B (informative) - Numerical example
Annex C (informative) - Example of reference
        sample selection
Annex D (informative) - Explanations of point
        callipers
Annex E (informative) - Infrared absorbance alpha
        value compensation
Annex F (informative) - Differences of the orthogonal
        axial system for quartz between IEC standard
        and IEEE standard
Annex G (informative) - alpha value measurement
        consistency between dispersive infrared spectrometer
        and fourier transform infrared spectrometer
Bibliography

IEC 60758:2016 applies to synthetic quartz single crystals intended for manufacturing piezoelectric elements for frequency control, selection and optical applications. This edition includes the following significant technical changes with respect to the previous edition:
- order rearrangement and review of terms and definitions;
- abolition as a standard of the infrared absorbance coefficient α3410;
- addition of the value measurement explanation by FT-IR equipment in annex;
- addition of the synthetic quartz crystal standards for optical applications.