refractor calibration

[Craig]

what's the most accurate method for calibrating a refractometer?

 

[tosiek]

using the calibration fluid that came with your refractometer. If not R/O.

 

[masterswimmer]

If you can get your hands on a laboratory standard you'll be in good shape.

Shaun provided a bunch of us with some lab standard calibrated to 35ppm.

Maybe if you ask nice, beg, plead and offer him your first born, he'll come through again. :biggrin:

swimmer