XRF at C4 上市 Deposited
- From mhodder@theworld.com Wed Nov 06 10:00:44 2002
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Date: Wed, 06 Nov 2002 18:00:42 -0000
To: colonial-coins@yahoogroups.com
Subject: XRF at C4
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From: "mike468hodder" <mhodder@theworld.com>
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When you test your coins at C4 using XRF, be sure to take multiple
readings on each coin, at different spots. Also, be sure the points
tested are clean. With coppers made of three or more different
elements segregation/surface enrichment can be problems.
Just a word to the wise.
Mike H - 2002-11-06
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