Unit of sale: One set
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Set of 5 tap waters with wooden box, jars and touchstone. By using this set it is possible to quickly and safely determine the chelation of the piece to be analyzed.
The results can be seen visually, after having performed the analytical process correctly. We recommend the use of protective gloves and goggles, as well as the use of this product in a ventilated place.
For precise results we must perform a test using a testimony contrasted with the touch star (ref TOQ0D0900), an essential element to perform this comparative analysis.
We will draw a line with the touch star, and make a line parallel to the first line with the piece to be analyzed. Next, we draw a third stroke with the touch water that will cross the two lines previously made.
We will wait for a short period of time to allow the action of the waters on the metal lines. The presentation of the jars in different colors facilitates their identification in a simple way.
We must look at the line made with our piece: if it disappears, we must repeat the test with a lower carat of the touch star and the corresponding touch water. If, on the other hand, the trace is maintained, we can determine that its carat is that which corresponds to the water used and to the testimony of the touch star.
The touch of the acid on the Silver should form a milky red precipitate. On the other metals, according to their nature, the trace is completely erased, turns green or remains unchanged.
Observe the test for one minute. The acid should not attack the platinum trace. The trace of white gold alloy, silver-gold, and Osmium-gold alloy, will always be attacked.
Remove the bottle from the tube. With the bottle in vertical position, make a small lateral pressure to break the neck of the vial, put the acid in the bottle.
It is very important to clean the touchstone with a cloth after each use. If traces remain in the stone, platinum acid can be used. It is advisable to use new acids.