12 Bottles Silver Test Acid Testing Sterling Jewelry Solution Metal Tester The test will help jewelry buyers and sellers to accurately determine the karat value of their jewelry, coins, bars, or scrap and to determine the purity of Silver. Test solution come in sturdy plastic bottles with internal baffle which prevents leaks to maximize safety and allows the user to precisely drop the amount needed. 12 grams. Just scratch the piece of silver you would like to test on a testing stone and place 1 drop on that mark where the stone was scratched.
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