Frequently Asked Questions | Goldanalytix
Here you find answers to the most frequently asked questions on all topics related to precious metal testing. The questions and answers are neatly arranged according to key topics - so you can find what you are looking for very quickly.
No. The GoldScreenPen measures the conductivity (like the GoldScreenSensor) and is therefore ideal for counterfeit detection of coins, bars and silverware. Sub-alloys or the exact carat number cannot be measured with a carat number smaller than 21, because the conductance values of these alloys only decrease very slightly with decreasing gold content.
The CaratScreenPen measures the carat number of gold objects, and therefore is the best method to detemine the carat number. The Goldanalytix test acids or the density scale are also methods to determine the carat number.