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https://blog.esslinger.com/how-to-test-for-platinum/
Jun 12, 2014 · Step 3. 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.amazon.com/PuriTEST-SILVER-PLATINUM-TESTING-JEWELRY-LOT-LOUPE/dp/B00OC2WRLM
Gold Silver Platinum Testing KIT Acid Test Jewelry-LOT-LOUPE 4.2 out of 5 stars 69 ratings 6 answered questions Price: $24.99 & FREE Shipping: Single Bottle each of 10k, 14k, 18k, and 22k Gold PuriTEST Testing Solutions4.2/5(69)
https://www.amazon.com/Silver-Platinum-Testing-Stone-Jewelers/dp/B000OVHWLK
JSP Gold Jewelry Acid Test 10K 14K 18K 22K Platinum Silver Testing Kit. ... acid One bottle of 18k testing acid One bottle of 22k testing acid One bottle of silver testing acid One bottle of platinum testing acid Acid Test Stone This is a new PuriTEST acid testing stone This stone is used to test 10k, 14k, 18k, 22k platinum and silver Use this ...4.5/5(1.1K)
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 ...
https://www.mgsrefining.com/blog/2020/11/25/how-to-test-for-platinum/
Nov 25, 2020 · Pure platinum jewelry, or jewelry that is at least 50% platinum, is typically marked with a stamp (also known as a hallmark). Usually, this mark will include a number like 850 followed by “plat or “pt”, which indicates the piece is 85% pure. If the piece you’ve acquired is marked with the word “platinum”, it is most likely 90-95% pure.Estimated Reading Time: 3 mins
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.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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