Ending WSK, where you can hide a knot, two pieces makes a whole thing...
Liquids for proof
Gold chloride 585 0,18g , capacity 10ml
Testing liquid for silver, chrome, capacity 10ml
A test stone for verifying the authenticity of precious metal products.The surface should be cleaned of old traces before reuse. After cleaning the stone, apply a uniform trace on the clean surface of the test stone. The test is carried out along the long side of the stone. Dimensions: 100 x 50 x 12 mm.
Gold chloride 585 0,12g , capacity 10ml
Test liquid no 1, to check gold sample 200-400
Test liquid no 2, to check gold sample 400-500
Test liquid no 3, to check gold sample 500-650
Test liquid no 1, to check gold sample 650-850
Test liquid no 5, to check gold sample 820-920
Test liquid no 6, to check gold sample 900-1000
Complete set of test liquids, 10ml each, in set: Test liquid no 1 (200-400) Test liquid no 2 (400-500) Test liquid no 3 (500-650) Test liquid no 4 (650-850) Test liquid no 5 (820-920) Gold chloride 0,18