Superseded
Standard
Historical
IEC 60689:1980
Measurements and test methods for 32 kHz quartz crystal units for wrist watches and standard values
Preview
Summary
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.
Technical characteristics
| Publisher | International Electrotechnical Commission (IEC) |
| Publication Date | 01/01/1980 |
| Release Date | 01/01/1980 |
| Cancellation Date | 11/27/2008 |
| Edition | 1 |
| Page Count | 33 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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Previous versions
01/01/1980
Superseded
Historical
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