24k gold refers to 99.99% ทองคำบริสุทธิ์
1. K: refers to the purity of gold.
2. ความบริสุทธิ์: refers to the vividness of colors. จากมุมมองทางวิทยาศาสตร์, the vividness of a color depends on the single degree of light emitted by this hue. The colors that can be distinguished by the human eye with the characteristics of monochromatic light have a certain degree of vividness. Different hues not only have different brightness, but also different purity. ตัวอย่างเช่น, red in the pigment is the hue with the highest purity, colors such as orange, สีเหลือง, and purple are also higher in the pigment, and blue-green is the hue with the lowest purity in the pigment.
ถาม: Is 24k gold absolutely pure?
คำตอบ: ไม่อย่างแน่นอน, there are still about 0.01% impurities in the 24K gold
ถาม: คุณหมายถึงอะไรโดย “K” in 8K and 24K gold?
คำตอบ: “K” is an international symbol used to indicate the purity of gold (เช่น, เนื้อหาทองคำ)…K gold is divided into 24K gold, 22K Gold, 18K Gold, 9K Gold, ฯลฯ. according to the amount of gold. The most common “18K gold” on the Chinese market has a gold content of 18×4.1666=75%, and the mark on the jewelry should be “18K” or “750”.
24K is a color mark for gold products. 24k gold is often regarded as pure gold, but the actual gold content is 99.99% (จริงๆ แล้ว 99.998%). The purity of gold and its products is called “สี”. There are two types of color markings on the market for gold products: one is percentage, such as G999, and the other is K gold, such as G24K, G22K, and G18K. my country has regulations on the marking and identification of gold products, and generally requires the production company code, material name, content imprint, เป็นต้น, and no imprint is an unqualified product.