IEC 60689:1980
Measurements and test methods for 32 kHz quartz crystal units for wrist watches and standard values
OVERVIEW
Applies to 32 kHz quartz crystal units for wrist watches. Gives methods of measurement of resonance frequency, resonance resistance, frequency-temperature dependence and frequency pulling. Lays down test methods in accordance with IEC 68-2-6, 68-2-20, 68-2-21 and 68-2-27.
COMMENTS
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PRODUCT DETAILS
| Status | Revised |
|---|---|
| Edition | 1980 |
| No. of Pages | 33 |
| ICS Classification | 31.140 Piezoelectric devices |
| Committee | TC 49 |
| Available for Purchase | For sale in Singapore only |
| Adoption | IEC : 0 |