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<p>[QUOTE=&quot;-jeffB, post: 1375777, member: 27832&quot;]As best I can tell, you put nitric acid on it, and watch what color it turns. I&#039;m a little suspicious of this test, based on the chemistry I know that&#039;s behind it, but it seems to be the standard.</p><p><br /></p><p>I&#039;ve got a set of employee-reward rounds that I bought on eBay. They weigh 1 ozt (31.1-31.2 g) each, and they&#039;re slightly smaller in diameter but slightly thicker than an ASE. I dug into the edge on one of them, and it looked like it was uniform all the way down. I&#039;m pretty sure they&#039;re .999, or sterling at worst, but I&#039;m going to have to test them, and nitric acid isn&#039;t something you can just pick up at the drugstore any more. I&#039;ve been thinking about making some from drain opener and fertilizer or saltpeter, but haven&#039;t worked up the nerve yet.[/QUOTE]</p><p><br /></p>

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