XRF Technology – Using X-Ray tube technology, the XRF Analysis test is the most accurate precious metals test in the world. There are three main benefits of using this type of modern technology. First, it simultaneously will measure the contents and exact percentage of all the contents of gold being analyzed in a given test. Then, it determines the presence and concentration of alloys that are not apart of the gold. Finally, it also eliminates the nitric acid test that is found to be not only damaging to your merchandise, but not healthy to be around in general.