IEC 60689:1980
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Measurements and test methods for 32 kHz quartz crystal units for wrist watches and standard values
Hardcopy , PDF
English - French, Russian
01-01-1980
31-12-2021
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.
| Committee |
TC 49
|
| DocumentType |
Standard
|
| Pages |
33
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Superseded
|
| SupersededBy |
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