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STN - Slovak standards
Page 4035
STN EN ISO 23345 (01/08/2026)
Jewellery and precious metals - Non destructive precious metal fineness confirmation by ED-XRF (ISO 23345:2021)
Available languages: English
Available design: Print design
STN EN ISO 24016 (01/08/2026)
Jewellery and precious metals - Grading polished diamonds - Terminology, classification and test methods (ISO 24016:2020, including corrected version 2024-03)
Available languages: English
Available design: Print design
STN EN ISO 24018 (01/08/2026)
Jewellery and precious metals - Specifications for 1 kilogram gold bar (ISO 24018:2020)
Available languages: English
Available design: Print design
STN EN ISO 8653 (01/08/2026)
Jewellery - Ring-sizes - Definition, measurement and designation (ISO 8653:2016)
Available languages: English
Available design: Print design
STN 423838 (01/03/1990)
Silver alloy AgPd30
Available languages: Czech
Available design: Print design
STN 423840 (01/08/1976) Withdrawn
Gold-silver-copper alloy Au58.5Ag5Cu (purity 585/1000)
Available design: Print design
STN 423841 (01/08/1976) Withdrawn
Gold-silver-copper alloy Au58.5Ag14Cu (purity 585/1000)
Available design: Print design
STN 423842 (01/08/1976) Withdrawn
Gold-silver-copper alloy Au58.5Ag20Cu (purity 585/1000)
Available design: Print design
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