
How to Best Use Gold Test Kits | Sciencing
Gold testing kits are used to test the purity of the gold and the 'Karat'. Testing kits can either come in the form of acid testing -- the most popular form -- that can identify the Karat and purity of the gold through acid reactions, electronic testing kits and touchstone testing kits that compare the reaction of real gold to other forms of gold you may have.
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