Complete Gold Testing Kit Inside Wood Storage Box – High Plains Prospectors

Includes the 10k, 14k, and 18k testing acids along with the 2 inch x 1 1/2 inch test stone, wood storage box, and instructions. Compartments conveniently hold everything is perspective spot. Stainless steel hinges with magnetic closure.
Includes the 10k, 14k, and 18k testing acids along with the 2 inch x 1 1/2 inch test stone, wood storage box, and instructions. Storage Box Wooden box for holding precious metal testing solutions such as gold, silver, platinum and testing stone. Compartments conveniently hold everything is perspective spot. Stainless steel hinges with magnetic closure.  3 Acid Bottle Compartments 1¼x1¼x2-1/8 1 Gold Testing Stone Compartment 2x1 1 Gold Testing Needle Compartment 2x1 Box Dimension 5x4x3-1/8 Magnetic Closure CAUTION Use extreme care when handling gold and silver testing kit solutions as they are corrosive acids. In case of skin contact, flush with large amounts of water. Then treat affected area with sodium bicarbonate or baking soda. If swallowed, contact a physician or hospital at once. In case of spills. treat with water and then sodium bicarbonate or baking soda. TESTING FOR GOLD Scratch the piece to be tested over the surface of the black stone provided, press well so as to leave a visible deposit, preferably a line of one to one-half inches long. For the most accurate testing it is recommended that the user becomes familiar with comparative testing using standard gold testing needles. For highest sensitivity place a scratch line with a gold test needle next to the scratch line of the metal you are testing. Compare the speed at which the scratches dissolve. If the test scratch dissolves more quickly than the needle scratch, it is a lower karat than the needle. Transfer a drop of the 10K solution to the scratch made. If the solution dissolves the scratch on the stone. it means the object is less than 10K gold or not gold at all. If the, solution leaves the scratch intact, it means the object being tested is 10K or greater than 10K. The scratching and testing is repeated with the 14K solution. If the Solution dissolves the scratch on the stone, it means the object is less than 14K gold (if the scratch dissolves slowly and leaves rusty color particles, it is probably 12k gold). If the solution leaves the scratch intact, it means the object being tested is 14K or greater than 14K. (CAUTION: Many objects are marked 14K, but were fabricated prior to 1982 when it was legal to mark items 14K, but in reality the gold was 13.5K. When testing 13.5K gold, the 14K solution will not dissolve the scratch, but it will make it lose its brightness and it will turn it into a yellow-rusty color). The scratching and testing is repeated with the 18K solution and the 22K solution (if available) until the karat of the object is determined. Remember that when the solution being used dissolves the scratch slowly and leaves rusty color particles it is probably two karats lower than the solution being used. On items of heavy weight and volume such as chains, coins, etc, where plating could hide the true metal, it is recommended that a deep notch in the test piece be made and the testing be made with the metal inside the piece TESTING FOR SILVER Scratch the piece to be tested over the surface of the black stone provided, press well so as to leave a LARGE AND THICK visible deposit, preferably a line of one to one-half inches long. Transfer a drop of the silver solution to the scratch made, The color reaction of the solution with the metal scratch will be as follows: (Take into consideration that the background of the test stone is black). • .925 silver and above, the acid will turn red. • 70-89% silver, the acid will turn green/brown. NOTE: With the silver solution, it is possible to test directly on the piece being tested, however, the solution will dull the polishing of the piece, and leave a mark where the acid was placed. TESTING FOR PLATINUM AND WHITE GOLD Scratch the piece to be tested over the surface of the black stone provided, press well so as to leave a LARGE AND THICK visible deposit, preferably a line of one to one-half inches long. Transfer a drop of the platinum test solution to the scratch made. (Take into consideration that the background of the test stone is black). The material on the stone is platinum, it should keep its white, bright color. Platinum test liquid can also be used for 18k and 14K white gold. In the case of 18K, the material on the stone should start changing to a light bronze color in about 3 minutes. For 14K white gold, the material on the stone should disappear in about 15 seconds.

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