IEC 60689:1980

Measurements and test methods for 32 kHz quartz crystal units for wrist watches and standard values

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.

OEN:

IEC

Langue:

English

Code(s) de l'ICS:

31.140

Statut:

Révisé

Date de Publication:

1979-12-31

Numéro Standard:

IEC 60689:1980