Timekeeping instruments. Wrist-chronometers with spring balance oscillator Ingestion-build-58863 lighting and acoustics and specifies

lighting and acoustics and specifies how to establish these parameters for building system design and energy performance calculations

Engine-driven main generators – Generators for supplying power to traction motors on the same vehicle or train

The types of fixings and sizes described are normally used on heavy commercial vehicles

stripping strength

Timekeeping instruments. Wrist-chronometers with spring balance oscillator Ingestion-build-58863 lighting and acoustics and specifies1 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.