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- Apr 3, 2020
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I have a refractometer and 2 bottles of calibration solution. I calibrated it to 35 with one and tested the other and got 33. What should I do?
I could split the difference, buy a third bottle, go with the newer bottle, etc but I'm surprised the two are off that much. One is Brightwell and one is Fritz, both 335 ppt.
I could split the difference, buy a third bottle, go with the newer bottle, etc but I'm surprised the two are off that much. One is Brightwell and one is Fritz, both 335 ppt.