EN 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
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC 60758:2008(E) applies to synthetic quartz single crystals intended for manufacturing piezoelectric elements for frequency control and selection. This fourth edition cancels and replaces the third edition, published in 2004. This edition constitutes a technical revision. It includes the following significant technical changes with respect to the previous edition: preparation of AT-cut slice sample for etching is changed to make it easier; etch channel grade classification is changed considering request of the user and explanation of quartz axes difference between IEEE and IEC is added as Annex F.