using salinity calibration fluid?

[drillsar]

Im calibrating my refractometer the first time, Im using pinpoint calibration fluid, do I use 1 drop and what should it read? Thanks

[kau_cinta_ku]

use 3 drops to cover the prizm and set it to 35ppt or 1.026

[snorvich]

I agree with above except 1.0264 which may be hard to see; I know it is for me, so set it just above 1.026

[drillsar]

Ok I did it, man mine was at 1.030. How long does it usually have to recalibrate?