Gold/Silver/Platinum Testing
Introduction
The Assay Laboratory was the first public laboratory to receive accreditation
to ISO/IEC 17025 from MAURITAS on 02 April 2008. The Assay Laboratory offers
a wide range of testing services for gold, silver and platinum jewellery
and their alloys. The service is offered to Jewellers, Members of the Public,
Government and Other Institutions.
Our customers also have the opportunity to witness their tests.
Fineness
Fineness expresses the content of precious metal in a jewellery.
Test Methods
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Cupellation
Cupellation, also known as fire assay, is a process where the pure gold
portion of a gold alloy is separated from other metals and impurities
and the overall gold content is calculated. It is the most accurate method
for gold testing.
Cupellation results are issued within three working days.
Assaying fee by Cupellation per sample: Rs 400/-
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Touchstone
Touchstone is an instant non-destructive testing used to assess the fineness
of gold in jewellery. It is a comparative method whereby the fineness
of the sample is determined based on its comparison with gold standards
of different known fineness.
Touchstone results are issued within one working day.
Assaying fee by Touchstone per sample: Rs 75/-
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X-Ray Spectrometry
X-Ray Spectrometry offers instant non-destructive testing using X-Ray
Fluorescence. This test method is used for the testing of gold, silver
and platinum alloys.
X-Ray Spectrometry results are issued within one working
day.
Assaying fee by X-ray spectrometer per sample: Rs 75/-
Valuation Service
The Assay Office offers a valuation service to its customers to know the
commercial value of their gold jewellery based on the gold content in their
jewellery.
A Valuation certificate is issued for each jewellery.
Valuation fee per sample: Rs250/-