HALLMARKING PRESENTATION
HALLMARKING PRESENTATION
HALLMARKING PRESENTATION
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Presentation Transcript
BIS SCHEME OF GOLD JEWELLERY HALLMARKING BY ALOK KUMAR GARG
GOLD ALLOY • Gold Jewellary – An Alloy of Gold and other base metal • Gold will form alloys with most metals, but for jewelry, the most common alloying metals are silver, Copper and zinc
Use of Gold • Monetary exchange • Investment • Jewelry • Medicine • Food and drinks • Industry • Electronics
WHAT IS HALLMARKING ? • Hallmarking is the accurate determination and official recording of the proportionate content of precious metal in gold • Hallmarks are official marks used in many countries as a guarantee ofpurity
Hallmark vs Trade Mark • Hallmarks are an official mark of guaranteed metal content • Trademarks are the mark of a manufacturer to distinguish his products from other manufacturer products.