fashion design jewelry wholesale 9999 silver bracelet pure. Because the purity of the silver jewelry is: S925, the most common sterling silver jewelry, the purity is 92.5%, S990, foot silver, purity 99%, S999, thousands of silver, purity 99.9%, 9999, 10,000 foot silver, the purity is 99.99999999999999999.999 is 99.9999.99999 is 99.9999.9.99 is 99.99. %, The highest. but 99.99 million foot silver did not get national permission, that is, there was no certification standard. Pucting information: This Silver Jewelry Tips: 1. Seeing the logo The national gold and silver jewelry logo management regulations: "Each gold and silver jewelry should have the logo." The logo includes materials, names and gold content, silver content, and brand names, such as "S925", "S990", and refers to the silver content of 92.5%and 99%, respectively; gold and silver jewelry without logo are unreliable. 2, see color the higher the purity, the white the silver, the surface of the jewelry, the surface of the jewelry looks uniform and bright, and the color is moisturized. If it contains lead, the jewelry will show blue and gray; such as copper, the surface of the jewelry will appear rough, and the color is not moisturized. Observations with your eyes, look white, shiny, work well, and printed 925 markers on the jewelry, which are high -colored silver jewelry; Jewelry; poor color, mostly downed ones are fake silver jewelry. 3, the color of the color From the appearance, the silver surface is slightly yellow -white, bright and strong, and a soft metal luster. Darkness and imitation products will not be black. 4, 量 weight The density of the silver is 10.53/cubic centimeter. Small than platinum, gold, and handless feel, but heavier than other metals of imitation silver. Generally speaking: "Light aluminum, heavy silver, and copper are not light and not heavy." Therefore, the weight can make a preliminary judgment on whether it is silver. If the jewelry is large and the quality is light, it can be preliminarily determined that the jewelry is other metals. 5, check hardness The silver hardness is lower than that of copper, and it is larger than that of lead and tin. Copper jewelry; if it is a lead and tin texture, the traces are obvious and prominent; if there are traces of the physical objects and not obvious, it can be initially determined as silver accessories. This bending the silver jewelry with the hand, soft and waxy, easy to bend and not easy to break; stiffness, or barely fold, and some can even be bent with fingers. A few times will be cracked for silver jewelry; it cannot be bent, and it is easy to break. 6, listening to sound rhyme general standard silver jewelry is dull and not bounce after landing; if it is copper, its sound is high and sharp; Short, no elasticity.
fashion design jewelry wholesale 9999 silver bracelet pure. Because the purity of the silver jewelry is: S925, the most common sterling silver jewelry, the purity is 92.5%, S990, foot silver, purity 99%, S999, thousands of silver, purity 99.9%, 9999, 10,000 foot silver, the purity is 99.99999999999999999.999 is 99.9999.99999 is 99.9999.9.99 is 99.99. %, The highest.
but 99.99 million foot silver did not get national permission, that is, there was no certification standard.
Pucting information:
This Silver Jewelry Tips:
1. Seeing the logo
The national gold and silver jewelry logo management regulations: "Each gold and silver jewelry should have the logo." The logo includes materials, names and gold content, silver content, and brand names, such as "S925", "S990", and refers to the silver content of 92.5%and 99%, respectively; gold and silver jewelry without logo are unreliable.
2, see color
the higher the purity, the white the silver, the surface of the jewelry, the surface of the jewelry looks uniform and bright, and the color is moisturized. If it contains lead, the jewelry will show blue and gray; such as copper, the surface of the jewelry will appear rough, and the color is not moisturized.
Observations with your eyes, look white, shiny, work well, and printed 925 markers on the jewelry, which are high -colored silver jewelry; Jewelry; poor color, mostly downed ones are fake silver jewelry.
3, the color of the color
From the appearance, the silver surface is slightly yellow -white, bright and strong, and a soft metal luster. Darkness and imitation products will not be black.
4, 量 weight
The density of the silver is 10.53/cubic centimeter. Small than platinum, gold, and handless feel, but heavier than other metals of imitation silver. Generally speaking: "Light aluminum, heavy silver, and copper are not light and not heavy." Therefore, the weight can make a preliminary judgment on whether it is silver. If the jewelry is large and the quality is light, it can be preliminarily determined that the jewelry is other metals.
5, check hardness
The silver hardness is lower than that of copper, and it is larger than that of lead and tin. Copper jewelry; if it is a lead and tin texture, the traces are obvious and prominent; if there are traces of the physical objects and not obvious, it can be initially determined as silver accessories.
This bending the silver jewelry with the hand, soft and waxy, easy to bend and not easy to break; stiffness, or barely fold, and some can even be bent with fingers. A few times will be cracked for silver jewelry; it cannot be bent, and it is easy to break.
6, listening to sound rhyme
general standard silver jewelry is dull and not bounce after landing; if it is copper, its sound is high and sharp; Short, no elasticity.