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ISO 19235:2015

Analogue quartz clocks — Timing accuracy

Oct 13, 2015

General information

90.93     Mar 29, 2021

ISO

ISO/TC 114/SC 14

International Standard

39.040.20  

English   French  

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Published

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Scope

ISO 19235:2015 specifies the basic parameters, requirements, and testing methods of timing accuracy for analogue quartz clocks, hereinafter referred to as "the quartz clock".
This International Standard applies to analogue quartz table and wall clocks which the oscillator frequency is 32 768 Hz and the nominal voltage is DC 1,5 V. Analogue quartz clock movements can refer to it.
This International Standard does not apply to the following quartz clocks:
- clocks for particular applications such as clocks used in aircraft, ship, vehicle, and facilities;
- clocks incorporated into other products;
- clocks in which time is radio-synchronized.

Life cycle

NOW

PUBLISHED
ISO 19235:2015
90.93 Standard confirmed
Mar 29, 2021