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https://www.leaf.tv/articles/how-to-test-jewelry-gold-platinum-palladium/
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. Other tests for platinum are the scratch-test method (similar to the one for gold); a melting-point test that looks for tarnish when flame is applied to the metal; and a density test, which involves weighing the platinum.
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://scottgramantiques.com/how-to-test-gold-platinum-and-silver-purity/
May 14, 2020 · To test for platinum or white gold use the following steps: Step one: Take out your kit and layout the stone. Step two: Take out the bottle to test for platinum gold. Step three: Take the jewelry and scratch it against the stone until there is a clear mark on the stone from the jewelry. Step four: Place a drop of the platinum solution on the mark. Watch what happens!Location: 14630 N Hana Maui Dr, Phoenix, 85022, Arizona
https://www.leaf.tv/articles/how-to-identify-a-platinum-ring/
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.specialtymetals.com/blog/2016/6/9/how-to-recognize-platinum-when-you-see-it
Jun 09, 2016 · Not so. Platinum might be a “modern” metal, but has been used to make jewelry – and cigarette cases and other items – for many years. Not Sure What You Have? Send It to Us for Testing. If you have a silver-toned item that could be made of platinum, call us at 800-426-2344 and ask us to test it for you. When you do, ask about shipping costs.
https://www.etsy.com/market/test_platinum
Gold and Silver Test Kit 10K 14K 18K 22K Platinum Jewelry w/ stone 24K Scrap Bars Real Fake Check Testing Precious Metal Sterling Solutions GOLDTESTINGEQUIPMENT. From shop GOLDTESTINGEQUIPMENT. 5 out of 5 stars (12) 12 reviews $ 16.99 FREE shipping Favorite Add to ...
https://blog.esslinger.com/how-to-test-for-palladium/
Jun 12, 2014 · Observe the reaction of the streak to the acid. If the metal has palladium content, it will very slowly turn a yellowish green color. If there is no palladium content, the …
https://www.esslinger.com/test-acid-12-grams-for-gold-silver-and-platinum/
To Test For Platinum Scratch the test item on the stone and apply platinum acid. If the material is platinum, it should keep its white, bright color. The same procedure can be used for 18k white gold.
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