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NEN ISO 3159 : 2009
Current
Current
The latest, up-to-date edition.
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TIMEKEEPING INSTRUMENTS - WRIST-CHRONOMETERS WITH SPRING BALANCE OSCILLATOR
Published date
12-01-2013
Publisher
Specifies the definition of the term "chronometer", describing the categories, the test programme and the acceptable minimum requirements for wrist-chronometers.
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