Why AHCs matter
An Assaying and Hallmarking Centre is a laboratory recognised by BIS to test precious-metal jewellery under the hallmarking scheme. AHC recognition and the applicable Indian Standards set controls over the testing and marking process.
What the workflow involves
The BIS digital hallmarking process is described in official material as including inward receipt and weighment, X-ray fluorescence (XRF) testing, sampling, fire assay and laser marking where applicable. Individual procedures and permissible methods must follow current BIS scheme requirements.
Traceability and documentation
- Identify incoming lots and articles correctly.
- Maintain appropriate chain-of-custody and process records.
- Use qualified personnel and appropriately controlled equipment.
- Ensure the applicable assay and marking stages are completed.
- Record results, maintain records and respond to surveillance requirements.
For jewellers and customers
Only centres currently recognised by BIS should be relied upon for formal hallmarking. A photograph of jewellery, an unverified HUID or an online explanation cannot replace a recognised centre’s work or BIS confirmation.