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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Publications of ISO/TC 174

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DIN EN 28653	1993-03	Standards	Jewellery; ring-sizes; definition, measurement and designation (ISO 8653:1986); german version EN 28653:1992 More	Order from DIN Media
DIN EN ISO 8654	2020-05	Standards	Jewellery - Colours of gold alloys - Definition, range of colours and designation (ISO 8654:2018 + Amd 1:2019); German version EN ISO 8654:2018 + A1:2019 More	Order from DIN Media
DIN EN ISO 9202	2019-09	Standards	Jewellery and precious metals - Fineness of precious metal alloys (ISO 9202:2019); German version EN ISO 9202:2019 More	Order from DIN Media
ISO 8653	2016-01	Standards	Jewellery - Ring-sizes - Definition, measurement and designation More	Order from DIN Media
ISO 8654	2018-02	Standards	Jewellery - Colours of gold alloys - Definition, range of colours and designation More	Order from DIN Media
ISO 8654 AMD 1	2019-12	Standards	Jewellery - Colours of gold alloys - Definition, range of colours and designation; Amendment 1 More	Order from DIN Media
ISO 9202	2019-04	Standards	Jewellery and precious metals - Fineness of precious metal alloys More	Order from DIN Media
ISO 10713	1992-11	Standards	Jewellery; gold alloy coatings More	Order from DIN Media
ISO 18323	2015-07	Standards	Jewellery - Consumer confidence in the diamond industry More	Order from DIN Media

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