
20
These rings would be rejected at a discrimination setting of number 14 or higher on the dial. Of the
78 rings in this frame, 16 or 21% were gold, 3 were sterling silver and all registered 154 - 160 on
the DTI-II meter.
These rings would be rejected at a discrimination setting of number 15 or higher on the dial. Of the
89 rings, 20 or 22% were gold, 10 were sterling silver, and all registered 161 - 169 on the DTI-II
meter.
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