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Timekeeping instruments. Wrist-chronometers with spring balance oscillator Ingestion-build-132972 This Technical Report conforms to
Timekeeping instruments. Wrist-chronometers with spring balance oscillator Ingestion-build-132972 This Technical Report conforms to
$142.00
Description
This Technical Report conforms to these steps
primarily in equipment-type specimens
Who is BS EN 60335-2-15 - Safety requirements for appliances for heating liquids for
some terminology has changed:
Timekeeping instruments. Wrist-chronometers with spring balance oscillator Ingestion-build-132972 This Technical Report conforms to1 Scope This International Standard lays down the definition of the term chronometer, describing the categories, the test programme and the acceptable minimum requirements for wrist chronometers. NOTE Wristwatches using a tuning fork oscillator are subjected to these tests pending the availability of separate standards.
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