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sklademVydáno: 2020-02-11
BS ISO 18684:2020
Timekeeping instruments. Watch external parts made of hard material. General requirements and test methods
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| Označení normy: | BS ISO 18684:2020 |
| Počet stran: | 20 |
| Vydáno: | 2020-02-11 |
| ISBN: | 978 0 580 94521 2 |
| Status: | Standard |
DESCRIPTION
BS ISO 18684:2020
This standard BS ISO 18684:2020 Timekeeping instruments. Watch external parts made of hard material. General requirements and test methods is classified in these ICS categories:
- 39.040.10 Watches
This document concerns whole watches, in which all or some of the components of the external parts are made of hard material, with the exception of watch glasses.
It applies to all elements made in massive material whose hardness is greater than or equal to 1 200 Vickers.
It describes the performance in terms of resistance to mechanical and thermal shocks, to corrosion, to scratches, to sunlight exposure and also to the wear of its components.