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https://www.technology.matthey.com/resources/view-questions-answers/can-test-metal-platinum/
Answer The simplest tests are heating and discoloration. If the item is heated, for example, in a Bunsen flame, platinum will be more difficult or impossible to melt and the platinum will not discolour. The effect of acid is another basic test.
https://www.leaf.tv/articles/how-to-test-jewelry-gold-platinum-palladium/
Medioimages/Photodisc/Photodisc/Getty Images. Wearing disposable gloves, follow the directions on the test kit. Typically, you'll rub the gold onto a piece of stone, then apply the nitric acid to the stone over the rub mark. The acid will dissolve onto the stone …
https://www.leaf.tv/articles/how-to-identify-a-platinum-ring/
Metal test kits use acid to check for the existence of platinum. Rub the ring on a test stone, and add a drop of acid to the metal streak on the stone. Notice the reaction time of the drop of acid. Unlike many metals, platinum is stable in its chemical makeup and will not react immediately to the acid drops. If it takes awhile for the reaction to occur, there is a strong chance that the metal could be identified as …
https://www.quicktest.co.uk/testing_white_metals.htm
Always start with the Quicktest 9ct acid (the 'WHITE' acid), apply it to the article as described in the instructions, this will tell you if the metal is not gold, 9ct gold or better than 9ct; once you know that it's better than 9ct, move onto the 14-24ct acid (the 'BLUE' acid). This will tell you if the item is 14ct or 18ct (though a white metal could also be steel) or 22ct to 24ct (though gold this pure cannot be white in …
https://www.youtube.com/watch?v=2koNEe6Kdyc
Apr 15, 2017 · How to use gold testing acid to know if gold is real or fakeJewelry loupe on Amazon. https://amzn.to/2xLA5DfGold silver platinum test kit on Amazon. https:...Author: Kendall Todd TheSilverGuy
https://www.ishor.com/scratch-test-instr
Scratch the piece to be tested over the surface of the black stone provided, press well so as to leave a large and thick visible deposit, preferably a line of one to one-half inches long. Transfer a drop of the platinum test solution to the scratch made. Take into consideration that the …
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