There are 999 gold in gold, which is easy to think of. Consulting some common sense before buying gold jewelry. The general purity logo is written on the product label, or engraved on the inside of the ring. Golden purity refers to the content of gold. Generally, K is used to represent the purity of gold, the highest purity of 24K gold, 18K times, and so on. The name of the gold depends on its purity. You can distinguish gold by looking at color, 、 weight, see hardness, listen to sound, use fire, and see tags and other methods. This means that the Kra "Kra" of the Gem is directly related. "Clar" comes from French Carat, "K" is taken from French Karat. In French, these two words are read as "carat", which is easy to confuse. In order to distinguish between the two, the weight unit of the gem was "carat", and the golden position symbol was selected "K". However, in the weight of the gem, 1 carat = 200 mg; 1k in the purity unit of gold is 1/24 or converted to 4.1666%, which means that the gold content is 1/24 or 4.1666%. 18k gold indicates that the content of gold is 18/24, which is 75%, and the remaining 25%are other metals. In gold ornaments, copper, silver, and so on. 24K gold means pure gold. Relatively speaking, Chinese consumers have high requirements for gold jewelry, so in the Chinese market, the more common gold jewelry varieties are 24K and 18K. , in Europe and the United States, people have greater demand for gold jewelry. We can see many low -purity gold jewelry, such as 12K gold, 14K gold, etc. These purity meanings are 50% of the gold content of 50% And 58.33%. The gold name depends on its purity. For example, the gold with a purity of 99%is called "foot gold", and the gold with a purity of 99.9%is called "Thousands of Gold". The gold with a purity of 99.99% It is 99.999%of gold, which can be called "100,000 enough gold" or "high pure gold". There is an idiom called "Gold is not red, no one is perfect", in fact, 100%of pure gold does not exist. The first reason is that in the refinement technology, the other is that the gold jewelry or gold bars will participate in other substances more or less during the processing process. If in accordance with the "Regulations and Naming Methods of the Puritan Pure of Jewelry" (National Standard GB/T11887-2002), the minimum value of the purity of the sufficient gold is 990, that is, the purity is not less than 990 ‰; The minimum value is 999, that is, the purity is not less than 999 ‰. In the standards here, the purity range of precious metals in precious metal jewelry does not include welding components, but the finished product content must not be lower than the specified purity range. regulations on the purity of gold in the national standard refer to the minimum purity value. In most of the domestic market, the purity of most gold and thousands of gold raw materials exceeds the lowest value (the purity of the foot gold reaches 995 ‰, and the purity of thousands of gold reaches 999.5 ‰).
It is 999, The gold content is not less than 999, which is called thousands of gold, which is the highest value of jewelry named names. The mark is thousands of gold, 999 gold, GOLD999 or G999. The mark of gold jewelry includes manufacturers' code, materials and purity, such as: X Gold 990, XAU990, X -foot gold, etc. Among them, the letters X are the manufacturer code. When making jewelry with different materials or different purifications, materials and purity should be represented separately. When the jewelry cannot be printed due to too thin or too small, it should be attached to the logo containing the mark content. 2015 Spring Festival, the National Standardization Management Committee announced GB11887-2012 "Regulations on the Pureth of Purple Metals and Names" No. 1 modification form, and will be implemented on May 4, 2016. It can only be marked as "foot gold", not like "thousands of gold".
There are 999 gold in gold, which is easy to think of. Consulting some common sense before buying gold jewelry. The general purity logo is written on the product label, or engraved on the inside of the ring.
Golden purity refers to the content of gold. Generally, K is used to represent the purity of gold, the highest purity of 24K gold, 18K times, and so on. The name of the gold depends on its purity. You can distinguish gold by looking at color, 、 weight, see hardness, listen to sound, use fire, and see tags and other methods.
This means that the Kra "Kra" of the Gem is directly related. "Clar" comes from French Carat, "K" is taken from French Karat. In French, these two words are read as "carat", which is easy to confuse. In order to distinguish between the two, the weight unit of the gem was "carat", and the golden position symbol was selected "K". However, in the weight of the gem, 1 carat = 200 mg; 1k in the purity unit of gold is 1/24 or converted to 4.1666%, which means that the gold content is 1/24 or 4.1666%.
18k gold indicates that the content of gold is 18/24, which is 75%, and the remaining 25%are other metals. In gold ornaments, copper, silver, and so on. 24K gold means pure gold. Relatively speaking, Chinese consumers have high requirements for gold jewelry, so in the Chinese market, the more common gold jewelry varieties are 24K and 18K.
, in Europe and the United States, people have greater demand for gold jewelry. We can see many low -purity gold jewelry, such as 12K gold, 14K gold, etc. These purity meanings are 50% of the gold content of 50% And 58.33%.
The gold name depends on its purity. For example, the gold with a purity of 99%is called "foot gold", and the gold with a purity of 99.9%is called "Thousands of Gold". The gold with a purity of 99.99% It is 99.999%of gold, which can be called "100,000 enough gold" or "high pure gold". There is an idiom called "Gold is not red, no one is perfect", in fact, 100%of pure gold does not exist. The first reason is that in the refinement technology, the other is that the gold jewelry or gold bars will participate in other substances more or less during the processing process.
If in accordance with the "Regulations and Naming Methods of the Puritan Pure of Jewelry" (National Standard GB/T11887-2002), the minimum value of the purity of the sufficient gold is 990, that is, the purity is not less than 990 ‰; The minimum value is 999, that is, the purity is not less than 999 ‰. In the standards here, the purity range of precious metals in precious metal jewelry does not include welding components, but the finished product content must not be lower than the specified purity range.
regulations on the purity of gold in the national standard refer to the minimum purity value. In most of the domestic market, the purity of most gold and thousands of gold raw materials exceeds the lowest value (the purity of the foot gold reaches 995 ‰, and the purity of thousands of gold reaches 999.5 ‰).
It is 999,
The gold content is not less than 999, which is called thousands of gold, which is the highest value of jewelry named names. The mark is thousands of gold, 999 gold, GOLD999 or G999. The mark of gold jewelry includes manufacturers' code, materials and purity, such as: X Gold 990, XAU990, X -foot gold, etc.
Among them, the letters X are the manufacturer code. When making jewelry with different materials or different purifications, materials and purity should be represented separately. When the jewelry cannot be printed due to too thin or too small, it should be attached to the logo containing the mark content.
2015 Spring Festival, the National Standardization Management Committee announced GB11887-2012 "Regulations on the Pureth of Purple Metals and Names" No. 1 modification form, and will be implemented on May 4, 2016. It can only be marked as "foot gold", not like "thousands of gold".