Silver knowledge, identification, maintenance, category, true and false

September 16, 2010
silver knowledge, identification, maintenance, category, true and false:
one, the knowledge about silver
We often hear of Sterlingsilver that weight is 92.5% pure silver. 925 mostly European and American silver, and Japan is 950 sterling silver with 92.5% or higher refers to the proportion of silver. 92.5 for the silver, and the remaining 7.5% is mixed with other alloys, including copper, because silver is too soft, as it hardens to join the copper. Prevent discoloration, then placed in plastic bags with zipper storage, and cut off the outside air, thus preventing the silver sulfide. Water or use a professional cleaning silver wipe.

Second, how to identify silver

1. bending method: silver jewelry, hand-off light, easy to bend easily off high purity; stiff, barely moving off the lower fineness; by bending or struck with a hammer will be split for a few color silver jewelry, can not stand the light off, and easy off for the fakes.
2. throw method: silver jewelry will be thrown down from the board in Taiwan, jumping is not high, smooth voice for the high purity silver jewelry: high jump throw the board in Taiwan, the sound is bright tip fake or low-purity silver jewelry.
3, see color: the higher the purity, the more white and silver, jewelry, shiny surface looks uniform, with polish. If you lead, will be showing a gray jewelry; such as copper, jewelry surface will become rough, the color is not moist feeling.
4, check the hardness: the hardness of silver over copper is low, while the more lead, tin big draw jewelry pin can be used to test inconspicuous place, such as needle skid surface, difficult to leave marks, you can judge for copper jewelry; such as lead, tin texture, then trace it is clear, prominent; such as physical traces but less obvious, can be initially determined for the silver jewelry.
alone and experience the physical properties of silver to test the jewelry is not very ideal. Only silver destroyed chemically in order to test out the pros and cons of silver is true, but it is beyond the reach of consumers. Silver jewelry silver there must be accurately indicate the amount that consumers buy jewelry looks for whether there should be “S925 or 925S” words. “S” is a silver (Silver) for the first letter of the English word, “925″ is the silver content mark. As long as there is “S925 or 925S” can ensure that the purchase is a genuine sterling silver jewelry. Special attention to the time of purchase whether it is fastening fasten and secure. It is time to buy silver chain flat to see whether the link knot or bend. Silver jewelry can be a professional wash silver water. Silver jewelry prices are based on precious metals content, design and artisan skills to determine, and therefore the most important selection criteria for silver is to see if you like.
three silver maintenance
* daily cleaning: a few days squeezing toothpaste on silver top, add water, rub, rinse with water to restore the light.
* 925 silver high silver content, are more flexible, hook to the hair or clothes and other items Do not pull hard.
* bathing, sleeping, swimming is best not to wear, especially in sea water.
* Avoid wearing jewelry or other metal put together to avoid friction.
* Avoid contact with vinegar, bleach, correction fluid and other chemicals.
* If time does not wear, your sealed to avoid contact with air oxidation of black.
* If black oxide, do not worry, you can use silver cleaning cloth or a professional silver wash water soak.
* There is also a little know-how to make silver bright, if you want the new silver bought more light and to avoid the black, can be coated on its surface a thin layer of transparent nail polish, such as To remove nail polish, water-soaked bananas available, can be cleaned with water after.

four silver category
Silver: Silver is second only to gold precious metals, platinum or gold prices, although not so high, but still far more than the price of tin, lead, metal, but silver is too soft and easy deformation, it is usually added to increase hardness of the other alloys, alloys are added countries different, so long as the international standard silver content of 925 ppm to over hundreds identified as silver.
925 Silver: usually sells in the market are all of pure silver, 925 silver, silver instead of 999 because 925 is the addition of other metals silver into a combined gold and silver, so silver in the 925 into the international arena has also been recognized as sterling silver, the ratio of 7.5% and 92.5% of the alloy of silver, so sterling silver jewelry forging a stronger but also more difficult to wear and deformation, The real 999 sterling silver is very soft, like gold, added a silver alloy jewelry made out of durable and will take into account, and will not wear a few days on the surface deformation and wear too much and need constant polishing. 92.5% silver in the air more easily oxidized.
Thai Silver: Thai specialty, the standard is 925 silver content. The appearance of a lack of brightness, the pursuit of a “historic”, “old” and “Old Silver” effect. Outside than 925 silver silver silver, because the public is not wide enough basis, the relative 925 silver, the price to be higher than the bottom number.
Tibetan silver: general non-silver components, are copper-nickel alloy (copper-nickel alloy) Blair said, the traditional Tibetan silver 30% silver with 70% of the copper, but even This traditional process of “Tibetan silver”, is now more common in Xinjiang on the market to sell, fineness rough.
18KGP , 23KGP : is a sign of alloy jewelry simulation. K represents the gold content, the gold content. GP stands for English Gold Plape, commercially known as forging gold. GP is gold or gold jewelry marks, in front of 18K or 23K gold is the outside layer of gold content. 18KGP specifically refers to the gold layer is plated or gold plated or 18K gold jewelry; 23KGP specifically refers to the gold layer is plated or 23K gold plated or gold jewelry.
a variety of deceptive fake silver: with other metal layer of silver plated only to deceive customers. In the jewelry department identification, because the test is only part of the surface, but as a thin layer of plated silver or 925 silver and 999 can easily be identified as 999 or 925 fine silver silver silver. Recommended when testing silver, silver the most reasonable way to cut a section from the middle to detect the innermost part of the middle. However, the implementation of this approach you need to buy it.
five, how to identify genuine 925 silver?
925 silver jewelry do the best
in the market survey found that some 925 silver jewelry using silver, and some 990 silver is used , in the end sterling silver jewelry which is a sign of it? National Quality Supervision and Inspection Center Jewelry Description: national standard 990 silver, 925 silver, 800 silver can be used to make silver jewelry. Now that silver is generally 925 silver. 925 silver jewelry is 92.5% silver content of 7.5% and then adding the alloy, the alloy is added to silver luster, brightness and hardness are improved. And since the 1851 launch of the first set of Tiffany silver content of 92.5% after silver jewelry, 925 silver are more popular, we now have 925 as the identification of whether the silver standard. 925 silver jewelry polished after showing a very beautiful metallic luster, but also has a certain hardness, can be set with precious stones, made of high-end jewelry. 990 fine silver is pure silver content of 99% and 1% of the alloy, because of its hardness is not enough, made into jewelry is easily deformed, so the few manufacturers use it for jewelry, 990 silver and was used in industry more extensive. 800 silver is the silver content of 80% by adding 20% ??of the alloy, due to lower silver purity more easily oxidized, so manufacturers rarely use it for jewelry. Manufacturers to reduce costs, achieve higher profits, doing jewelry mixed cadmium, iron, copper and other cheaper metals. And cadmium on the **** is harmful, according to the provisions of the jewelry is not allowed in the mixed. Mainly in the Ag-doped copper lock in the middle of the supporting frames made, in accordance with state regulations in the supporting frames silver locks should also be silver. As the copper wire hidden in the silver lock inside, so consumers can not see, only time during the test in order to destroy it reflected in its true colors. Only until a long time, rust seeping inside, consumers can be found. Although silver is not expensive, but there are really false, although this phenomenon is not widespread, but consumers should still have some way to identify silver jewelry.
six, why someone would be black with silver, some people are not clear with it?
because each person endocrine structure is different, some people sweat more acid, and some less, some of the ammonia content is high, so wear silver produced different results, acid easy black, not black acid is less easy, strong oil secretion and even some people who will get their shiny shiny silver band. Most silver plated jewelry (except a small part of the true nature of silver jewelry), so please Do not use silver cleaning cloth, preferably daily cleaning with toothpaste, even coating, but also need to take good care of, so you sweat more time, try not to wear a silver-plated jewelry.