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A number of folks have told me that the ATC refractometer that they've gotten from you says it should be calibrated at 68 deg F.
What possible reason could there be for doing that?
If the ATC works, it won't matter what temp you use for calibration, and if it isn't working perfectly, you'd want to calibrate at the same temp that you measure.
Can you clarify what these directions mean?
TIA
What possible reason could there be for doing that?
If the ATC works, it won't matter what temp you use for calibration, and if it isn't working perfectly, you'd want to calibrate at the same temp that you measure.
Can you clarify what these directions mean?
TIA