BIS Hallmark:
BIS is Bureau of Indian Standards. It has been identified by Government of India, as a sole agency to operate this scheme in India. This is operating under BIS Act and also voluntary in nature. Rules and regulations of BIS are followed.
The BIS hallmarking scheme has been linked with International principles on hallmarking. License has been approved to the jewelers by BIS under hallmarking scheme. The certified jewelers can get their jewellery hallmarked from any recognized BIS examining and hallmarking centre. The reorganizations to this centre will be given against BIS criteria Document, HMS/RAHC/GO1 which is in line with International criteria on Marking and Control of Precious metals.
958 Corresponding to 23 Karat
916 Corresponding to 22 Karat
875 Corresponding to 21 Karat
750 Corresponding to 18 Karat
585 Corresponding to 14 Karat
375 Corresponding to 9 Karat
916 KDM Jewels:
Gold jewellery from certain places is marked with KDM stamp. It means that the jewellery was soldered with Cadmium. Cadmium is nothing but Kadium. Kadium denotes the purity of gold. KDM was habitually used in joining of gold jewelry for its good properties of liquidity and melting at lower temperatures. Purity of gold represents the percentage of gold in the metal. KDM has a logo and certificate with KDM mark. The real gold mark is hallmarked logo. Hallmarked jewellery has logo with 22K or 18K gold. Now-a-days, jewelers are using gold solders, which are free from Cadmium.
No comments:
Post a Comment