MARKING METHODS
There are three methods available for marking the assay office mark and sponsor’s marks:
- Punching;
- Laser engraving;
- Tagging or any other marking method, provided that it is approved by the Assay Office Director (e.g. aseptically packaged articles of precious metal).
- Any other marking method justified by advances in technology, provided that it is approved by the assay office director.
