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NF EN ISO 8654:2018/A1:2019
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Jewellery — Colours of gold alloys — Definition, range of colours and designation — Amendment 1
Amendment of
Available format(s)
Hardcopy
Language(s)
English - French
Published date
01-12-2019
Publisher
This amendment specifies the nominal values and tolerances of the trichromatic coordinates of gold alloys when the colour measurement is carried out with a 10° reference observer.
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