3 thoughts on “How many levels are there in gold,”
Mamie
The level of gold is the purity of gold. There are two ways to represent: K gold method and gold -containing percentage. The K gold method is 24 parts in the sample, of which the number of gold content is. The percentage method is the percentage of the gold content of 100 in the sample. The relationship is: 24K contains 99.98%gold, 22K contains 91.67%, 18K contains 75.1%, 14K contains 58,5%, and 12K contains 50%.
The content of gold jewelry is: 24K -At present, the market is occasionally marked with 24K gold jewelry. According to national standards, the theoretical value of 24K gold content should be 100 %. It is incorrect to win 24K gold in sales and does not meet national standards. Thousands of gold -content is 99.9%, commonly known as three 9. The gold -content is 99.0%, above, commonly known as two 9. 18K -The content is 75.0%, and 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 level of gold is the purity of gold. There are two ways to represent: K gold method and gold -containing percentage. The K gold method is 24 parts in the sample, of which the number of gold content is. The percentage method is the percentage of the gold content of 100 in the sample. The relationship is:
24K contains 99.98%gold, 22K contains 91.67%, 18K contains 75.1%, 14K contains 58,5%, and 12K contains 50%.
There is no level, but the gold content is different. Generally, the country and international naming are 24K, 18K, or AU999, AU995, AU990 and AU750
The content of gold jewelry is:
24K -At present, the market is occasionally marked with 24K gold jewelry. According to national standards, the theoretical value of 24K gold content should be 100 %. It is incorrect to win 24K gold in sales and does not meet national standards.
Thousands of gold -content is 99.9%, commonly known as three 9.
The gold -content is 99.0%, above, commonly known as two 9.
18K -The content is 75.0%, and 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)