Fineness is a critical parameter in hallmarking, representing the purity of precious metals in jewellery. The Bureau of Indian Standards (BIS) ensures that all hallmarked jewellery meets the declared fineness standards. Addressing any deviation in fineness is essential for maintaining the integrity of the hallmarking process.
A shortage in fineness occurs when the actual purity of a hallmarked article is less than the declared fineness. BIS guidelines allow a deviation of up to 5 parts per thousand (ppt) from the declared fineness. Any deviation above this limit requires corrective action to ensure compliance.
BIS conducts annual market surveillance of registered jewellers to verify the authenticity and fineness of hallmarked jewellery. Samples are randomly drawn and tested to ensure they meet the declared standards. This process helps maintain the credibility of the hallmarking system.
To assess the compliance of Assaying and Hallmarking Centres (AHCs), BIS calculates the pass percentage of samples tested over the last year. This involves determining the proportion of samples that meet the fineness standards out of the total samples tested. A low pass percentage indicates potential issues with an AHC's processes.
BIS Offices (BOs) are responsible for communicating the results of sample tests to the Hallmarking Office (HMO) in their region. This includes detailed reports on the fineness of the samples tested and any deviations observed. Effective communication ensures that appropriate actions can be taken promptly.
If the pass percentage of an AHC is found to be unsatisfactory, BIS may initiate actions against the centre. This can include additional scrutiny, suspension of operations, or cancellation of certification. These actions are necessary to uphold the standards of hallmarking and protect consumer interests.
How is fineness measured in hallmarked jewellery? Fineness is measured using precise analytical techniques that determine the purity of the metal in parts per thousand (ppt).
What are the consequences of fineness shortage for jewellers and AHCs? A shortage in fineness can lead to corrective actions, financial penalties, and potential cancellation of certification for jewellers and AHCs.
How can jewellers ensure compliance with BIS guidelines? Jewellers should regularly verify the fineness of their products, maintain accurate records, and cooperate with BIS during market surveillance.
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