The national standard "GB11887-8P" stipulates that the gold content is not less than 990 ‰ is sufficient gold, and the gold content is not less than 999 ‰. At the same time, the purity of K gold also stipulates, of which 8K's gold content is not less than 333 ‰, the gold content of 18K is not less than 750 ‰, and the gold content of 24K is not less than 999 ‰. Each (English Carat and German Karat abbreviations, often writing "K") gold content is 4.166%. 18K = 18*4.166%= 74.998%, 24K = 24*4.166%= 99.984%. 24K contains 99%gold, 22K contains 91.7%, 18K contains 75.1%, 14K contains 58.5%, and 12K contains 50%. At present, the gold jewelry sold in the market is divided into foot gold and K gold jewelry. According to the provisions of the national standard GB11887, the content of several common gold jewelry is: 24K — the current international gold price market is occasionally marked with 24K gold jewelry. According to national standards, the theoretical value of 24K gold content should be 100 %, and gold has no barefoot. Therefore, strictly speaking, 24K does not exist. The sales of 24K gold in sales are incorrect and do not meet national standards. Thousands of gold -the content is 99.9%, commonly known as three 9. Foot gold -content is 99.0%, above, commonly known as two 9. 18K — the content is 75.0%. There are many colors of K gold, usually with yellow, red, and white. Among them, white K gold is actually alloy of gold, nickel, zinc, copper and other elements. It is not usually called platinum jewelry. Platinum refers to precious metal platinum (PT).
The national standard "GB11887-8P" stipulates that the gold content is not less than 990 ‰ is sufficient gold, and the gold content is not less than 999 ‰. At the same time, the purity of K gold also stipulates, of which 8K's gold content is not less than 333 ‰, the gold content of 18K is not less than 750 ‰, and the gold content of 24K is not less than 999 ‰. Each (English Carat and German Karat abbreviations, often writing "K") gold content is 4.166%. 18K = 18*4.166%= 74.998%, 24K = 24*4.166%= 99.984%. 24K contains 99%gold, 22K contains 91.7%, 18K contains 75.1%, 14K contains 58.5%, and 12K contains 50%. At present, the gold jewelry sold in the market is divided into foot gold and K gold jewelry. According to the provisions of the national standard GB11887, the content of several common gold jewelry is: 24K — the current international gold price market is occasionally marked with 24K gold jewelry. According to national standards, the theoretical value of 24K gold content should be 100 %, and gold has no barefoot. Therefore, strictly speaking, 24K does not exist. The sales of 24K gold in sales are incorrect and do not meet national standards. Thousands of gold -the content is 99.9%, commonly known as three 9. Foot gold -content is 99.0%, above, commonly known as two 9. 18K — the content is 75.0%. There are many colors of K gold, usually with yellow, red, and white. Among them, white K gold is actually alloy of gold, nickel, zinc, copper and other elements. It is not usually called platinum jewelry. Platinum refers to precious metal platinum (PT).