THE TESTING OF ALLOY TO DEFINE PRECISE CONFIRMATION OF PRECIOUS METAL CONTENT.
We utilise the leading technology available to assay and confirm the precious metal content of articles presented for testing.
For hallmarking requirements in particular, we select samples from every batch of work received and analyse utilising X-ray Fluorescence
Spectrometry (XRF) machines.
We also test utilising more traditional methods such as cupellation (gold) and potentiometric titration (silver).
We work with our customers to process the vast majority of assaying through non-destructive techniques.
COMPULSORY ELEMENTS OF A HALLMARK:
Sponsor’s mark: This is the unique mark of the manufacturer, importer, wholesaler, retailer or an individual, obtained from an Assay Office.
Standard mark: This confirms the purity of the precious metal content in parts per 1,000; there is no negative tolerance – this means that minimum purity requirements must be met.
The Assay Office mark: This symbol confirms which Assay Office has tested and then hallmarked the item. The Anchor is our symbol – it confirms the validity and integrity of the precious metal content of that item.
Optional marks: Non-compulsory marks such as date letters (denoting the year the item was hallmarked), traditional marks (additional precious metal symbols) and commemorative marks (celebrating major events).