OS GSO ISO 23345:2022

ISO 23345:2021
Omani Standard   Current Edition · Approved on 10 October 2022

Jewellery and precious metals — Non destructive precious metal fineness confirmation by ED-XRF

OS GSO ISO 23345:2022 Files

OS GSO ISO 23345:2022 Scope

This document describes a non-destructive method to verify (confirm) the precious metal fineness of finished and semifinished jewellery item(s) considered homogeneous by ED-XRF (energy dispersive X-ray fluorescence), including alloys according to ISO 9202.

This document is not suitable for any coated items. WD-XRF (wavelength dispersive X-ray fluorescence) equipment cannot be used.

Best Sellers From Metrology Sector

OS GSO OIML R87:2021
OIML R87:2016 
Omani Standard
Quantity of product in prepackages
GSO OIML R87:2021
OIML R87:2016 
Gulf Standard
Quantity of product in prepackages
GSO OIML R79:2021
OIML R79:2015 
Gulf Standard
Labeling requirements for prepackages
OS GSO OIML R79:2021
OIML R79:2015 
Omani Standard
Labeling requirements for prepackages

Recently Published from Metrology Sector

GSO IEC 61452:2026
IEC 61452:2021 
Gulf Standard
Nuclear instrumentation - Measurement of activity or emission rate of gamma-ray emitting radionuclides - Calibration and use of germanium-based spectrometers
GSO ISO 25178-605:2026
ISO 25178-605:2025 
Gulf Standard
Geometrical product specifications (GPS) — Surface texture: Areal — Part 605: Design and characteristics of non-contact (point autofocus probe) instruments
GSO ISO 10713:2026
ISO 10713:2025 
Gulf Standard
Jewellery and precious metals — Gold alloy coatings
GSO ISO 25178-603:2026
ISO 25178-603:2025 
Gulf Standard
Geometrical product specifications (GPS) — Surface texture: Areal — Part 603: Design and characteristics of non-contact (phase shifting interferometry) instruments