6 Testing Solutions. Everything you need to appraise 10k, 14k, 18k, 22k, silver and platinum. These are the finest acids made today. Each bottle has 1/2 fl oz of acid. The sturdy plastic bottles maximize safety and allows the user to easily squeeze out one drop at a time. You receive: One bottle of 10k testing acid. One bottle of 14k testing acid. One bottle of 18k testing acid. One bottle of 22k testing acid. One bottle of silver testing acid. One bottle of platinum testing acid. Acid Test Stone. This is natural obsidian, &testing stone, polished to accurately test&10k, 14k, 18k and silver. measures 2×1.5
