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IEC 60689 Ed. 1.0 Edition 01/1980
Measurements and test methods for 32 kHz quartz crystal units for wrist watches and standard values
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Abstract

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.

Status

Standard - Superseded

Origin

Technical Committee :
49 : Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection

Implementation

start of the vote on the project      date of ratification (dor)   
end of the vote on the project      date of anouncement (doa)   
start of the vote on the final project      date of publication (dop)   
end of the vote on the final project      date of withdrawal (dow)   


Publication Official Journal
of the Grand-Duchy of Luxembourg
Reference

Relations

Evolutions
IEC 60951-3 Ed.3.0 RLV
IEC 60951-3 Ed.3.0 RLV

International Classification for Standards (ICS codes) :

31.140 : Piezoelectric devices

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