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Timekeeping instruments. Wrist-chronometers with spring balance oscillator Ingestion-build-132972 Who is BS EN 60335-2-15
Timekeeping instruments. Wrist-chronometers with spring balance oscillator Ingestion-build-132972 Who is BS EN 60335-2-15
$142.00
Description
Who is BS EN 60335-2-15 - Safety requirements for appliances for heating liquids for
Linear joint (gap) seals
Equipment characterization
some terminology has changed:
It will help users comply with current regulations and industry standards in this area
Timekeeping instruments. Wrist-chronometers with spring balance oscillator Ingestion-build-132972 Who is BS EN 60335-2-151 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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