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- Aug 24, 2016
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You could do a 1/10 dilution or so.I like CHEMetrics because I feel it's accurate. What I don't like about the high range is that instead of having the comparator in tenths like the low range it's in whole numbers. This leaves a lot more guess work. Guessing between 1 & 2 or 2 & 3 is tricky.
With cupramine, I could use the low range in tenths. A lot easier. Either way, the test still shows around 2 ppm or more.