Testing for silver made simple.
Accurate results from these easy-to-use plastic bottles with secure, color-coded caps.
Use with test stones.

Testing for Silver

You will need the following tools:

• Black acid testing stone that is washed thoroughly with water prior to each test
• Acids
• Gold testing needles with gold tips - used for comparison with test pieces

Place a drop of acid on the object to be tested.

• 90-100% silver, the acid will show a creamy colour
• 77-90% silver, the acid turns a gray colour
• 65-75% silver, then the acid will show a light green colour.