20 JSP Gold Test Acids- 10k, 14k, 18k, 22k * 5 bottles of each karat. 5 of each 10k, 14k, 18k, 22k Gold Test Acids. (20 total) original JSP Brand Acids 1/2 oz. Testing bottles!! only 1 drop needed to test the gold. Also includes Gold Testing instructions so you can start right away. Only one drop needed for testing. Each 1/2 ounce bottle contains enough acid to test up to 500 pieces of gold.