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GSO ISO 11427:2025
ISO 11427:2024
Gulf Standard
Jewellery and precious metals — Determination of silver — Potentiometry using potassium bromide
ISO 10713:2025
International Standard
Jewellery and precious metals — Gold alloy coatings
GSO ASTM F2923:2025
ASTM F2923:20
Gulf Standard
Standard Specification for Consumer Product Safety for Children’s Jewelry
GSO ISO 18214:2025
ISO 18214:2024
Gulf Standard
Jewellery and precious metals — Determination of high purity gold, silver, platinum and palladium — Difference method using SPARK-OES
GSO ISO 5724:2025
ISO 5724:2023
Gulf Standard
Jewellery and precious metals — Determination of very high purity gold — Difference method using ICP-MS
ISO 19919:2025
International Standard
Jewellery and precious metals — Determination of silver — ICP-OES method using an internal standard element
GSO ISO 13756:2025
ISO 13756:2024
Gulf Standard
Jewellery and precious metals — Determination of silver — Potentiometry using sodium chloride or potassium chloride
ISO 19376-1:2025
International Standard
Jewellery and precious metals — Vocabulary — Part 1: Precious metals and units
GSO ISO 6893:2025
ISO 6893:2024
Gulf Standard
Jewellery and precious metals — Inspection of batches of small diamonds — Terminology, classification and test methods
ISO 13756:2024
International Standard
Jewellery and precious metals — Determination of silver — Potentiometry using sodium chloride or potassium chloride
GSO ISO 11426:2024
ISO 11426:2021
Gulf Standard
Jewellery and precious metals — Determination of gold — Cupellation method (fire assay)
ISO 11427:2024
International Standard
Jewellery and precious metals — Determination of silver — Potentiometry using potassium bromide