Set of ready-to-use gold testing acid solutions.
Includes 6 acid for measuring and differentiating between gold counterfeits using the approximate method on a test stone.

Liquids included: No. 9, 12, 14, 18, 20 and gold chloride.

Acid 9 - 0.200 - 0.400

Acid 12 - 0.400 - 0.500

Acid 14 - 0.500 - 0.650

Acid 18 - 0.650 - 0.850

Acid 20 - 0.820 - 0.920

Gold chloride 585.

Liquids change colour on contact with the test object. Thanks to the gold chloride we can easily determine whether we are in contact with a gold alloy or a counterfeit.

The capacity of each liquid: 10 ml.
The amount of acid in the set: 6.