EN 28654-1992 标准详情
- 标准号:EN 28654-1992
- 中文标题:金合金的颜色.标识、颜色系列和名称符号
- 英文标题:colours of gold alloys - definition, range of colours and designation
- 标准类别:欧盟标准EN
- 发布日期:1992-12-07
Specifies a limited number of colours of gold alloys. Applies to jewellery, and to watch cases and accessories with gold alloy coverings or watch cases and accessories made of gold alloys. Coverage includes measurement method and colour slips.
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