9kt gold testing solution

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Roz

New member
Joined
Feb 21, 2019
Messages
1
I have been using JSP gold testing solution for many years and have never had any quality issues. However they do not produce 9kt solution as 9kt is not sold in the USA.

Does anyone know a formula to make my own 9kt testing solution?
 
If you can source a good piece of 9k preferably with a uk hallmark you can use 14 or 18k test acids, do multiple tests until you come to recognize the stain for 9k, remember these acid tests are only an indicator and will not tell you whether the item been tested is plum.
 
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