Quote:
Originally posted by LtPiper
I'd love to have somebody around here provide a test solution so I could get a reading so I could calibrate and have an idea which one is right.
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A standard basically equal to NSW is
3.7 g table salt in 96.3 g ro water= s.g 1.0265/35 ppt at 68 degrees.
You could also check you hydrometers against a calibrated refractometer.