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https://blog.esslinger.com/how-to-test-for-platinum/
Jun 12, 2014 · Apply a drop of your platinum testing acid across the streak on your testing stone. Note: If you will not be testing platinum often, you can use 22 karat gold acid to test for platinum. However, if you plan to be testing platinum with any sort of regularity, you will want to invest in a platinum testing acid. …
https://www.leaf.tv/articles/how-to-test-jewelry-gold-platinum-palladium/
To test for platinum, use a magnet. This is the simplest way to test platinum jewelry without causative acids. If the magnet sticks, there is iron in the piece, and the piece is not pure.
https://www.quicktest.co.uk/testing_white_metals.htm
You are now ready for the final test (for white metals), which uses the 14-24ct acid (the 'BLUE' acid) and the Platinum (Green) acid and a strip of test-paper. In summary: if there is no reaction at all when the acid is placed on the metal (it stays clear, just as if it were water), and no reaction at all when you soak up the spot of acid with ...
https://www.mgsrefining.com/blog/2020/11/25/how-to-test-for-platinum/
Nov 25, 2020 · Even before any precious metal testing, there are a couple of ways to tell if a metal is platinum. The first way is to use visual cues. Pure platinum jewelry, or jewelry that is at least 50% platinum, is typically marked with a stamp (also known as a hallmark).Estimated Reading Time: 3 mins
https://www.ishor.com/scratch-test-instr
Shor International sells tools and supplies for precious metal refining, jewelry making, silversmithing, polishing, weapons cleaning, and much more. Call us at 1-800-295-6320 Log In Quick Order Cart
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