Forum Discussion
MEXICOWANDERER
Mar 10, 2016Explorer
A calibration unit IS a Freas unit. NIST qualified. I had one meaning a single refractometer back in '91 It dropped out of my pocket and down 4' onto concrete. Sudden lack of interest in refractometers. I make PVC tube holsters for Freas units. Try a series run of 24-cells like I do with my batteries. A sudden realization will dawn....
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