Tarnish Testing Argentium Silver
Argentium silver alloys are tested using three laboratory tests. These tests are designed to replicate the effects of environmental pollutants and everyday conditions that cause tarnish.
Sulphur test The sulphur test reproduces the effects of sulphur and sulphurous gases found in the atmosphere and everyday substances. This test is based on a ISO (International Standards Organisation) corrosion testing protocol used within the precious metals industry (ISO 4538:1995).
Perspiration test This test reproduces the effects of perspiration and skin contact with silver alloys. The testing procedure is based on a standardised procedure used in the spectacles industry (ISO 12870:2004).
Ultraviolet test The ultraviolet test determines whether alloys are photosensitive to ultraviolet light. This is especially applicable to silver articles that are on display and exposed to sunlight.
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