Quote:
Originally Posted by NAS
So, when I use it on a day to day basis i just add .03 to it and it's corrected.
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That's how a calibrated glass hydrometer works. With a couple of known solutions measure the standard deviation and then apply that deviation to the observed reading.
So once you know your hydrometer consistently reads +.03, add that to the observed result for an accurate measurement.
Of course by measuring anything you are changing it so you can never have a "TRUE" 100% no questions asked result.
