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Message:: [QUOTE="slackaction1, post: 2314012, member: 107109"]Well Kentucky here is how he does it .. and I quote "I do, REGULARLY, SG tests in just a few seconds. I open and turn on my scale, I get out the vessel I use, (the bottom 2 1/2 inches of a plastic half gallon milk carton,) pour water from an unopened bottle of drinking water that I carry with my scale and the vessel in a Molle bag, put it on the scale, dip the opened paper clip that I use as a coin holder to the depth it will be when testing, then set the tare. This takes seconds. Then I take the coin or bar, immerse it, hold it still long enough to see my 2.97g per troy ounce on the scale. I weight the coin first, then run the test. I DO THIS ON THE COUNTER TOP OF THE LCS. The coin gets wet. Big deal. If it comes to the point that I'm testing for purity, and it passes, I'm buying. I've never had anyone object. Honestly, it's no more complicated than that. The only proviso is that your scale must read accurately to 0.01 grams for the test to be meaningful. This test is DEFINITIVE. The SG is a property of the element, and is extremely difficult to fake. I smart metallurgist can get close, but if you as a technician running the test know what you are doing and why, you won't be fooled. I suppose most people didn't have or pay attention in high school chemistry, but that's all the level of education one needs to do this test with authority.[/QUOTE]