Au750 refers to an alloy containing 75% oltin va 25% Boshqa metallar, commonly known as 18K gold. Usually used to make jewelry, the mark is G18K, G750 or Au750 “where G is the meaning of gold content”.
24k gold is often considered pure gold, Ammo haqiqiy oltin miqdori 99.98%. Oltinning tozaligi va uning mahsulotlari deyiladi “rang”. Oltin mahsulotlar bozorida ikki xil rang belgilari mavjud: biri foiz, kabi G999 kabi, ikkinchisi - k oltin, kabi g24k kabi, G22k, va g18k. Mening mamlakatim oltin mahsulotlarni belgilash va identifikatsiya qilish to'g'risidagi nizomga ega, va odatda ishlab chiqarish kompaniyasini talab qiladi, Moddiy nomi, tarkib izi, va hokazo., va hech qanday izoh - bu malakasiz mahsulot emas. The same is true internationally. But for some very fine products, it is allowed not to mark. National standard GB11887-89 stipulates that the gold content per opening (abbreviation of carat in English and karat in German, writing K) bu 4.166%.
Au750 not only has the precious value of gold, but also has the advantages of strong ductility, Yuqori qattiqlik, and variable colors. It is very popular. Because the price of gold fluctuates daily, the price of au750 also fluctuates. The current price of gold is 346 yuan a Gram, au750 price is about 75% of the price of pure gold. The price of gold varies from day to day. Depending on the process and the other 25% gold-containing species, the price of diamonds is also different, and the price of Au750 fluctuates accordingly.
24k gold means 99.99% sof oltin,
Eslatma: 1. K: Oltin tozalikni anglatadi.
Poklik: ranglarning yorqinligini anglatadi. Ilmiy nuqtai nazardan, rangning yorqinligi bu qalpa tomonidan chiqarilgan yorug'likning yagona darajasiga bog'liq. Odam ko'zi bilan ajralib turadigan ranglar monoxromatik nurning xususiyatlari ma'lum darajada yorqinlikka ega. Turli xil ranglar nafaqat turli xil yorqinlikka ega, Ammo har xil poklik. Masalan, pigmentda qizil - bu eng yuqori poklik, to'q sariq rangdagi ranglar, sariq, va binafsha rang pigmentda ham yuqori, va ko'k-yashil - bu pigmentda eng past tozalicha. In the daily visual range, most of the colors seen by the eyes are gray colors, bu, unsaturated colors. With the change in purity, it is so rich in the world. Even if the purity of the same hue changes slightly, it will also bring changes in color personality.
Each open (abbreviation of carat in English and karat in German, often written as “k”) has a gold content of 4.166%, 18k=18*4.166%=74.998%, 24k=24*4.166%=99.984%
24K contains 99% oltin, 22K contains 91.7%, 18K contains 75.1%, 14K contains 58.5%, and 12K contains 50%.