Caution for anyone using a refractometer

[Reefer Rob]

Originally Posted by fencer

Don't forget that density is dependent on temperature of your sample. Unless you have a correction factor your salt mix will be off.

The 2 or so drops that you put on your refractometer will go to room temperature pretty quick Has anyone noticed a change in reading as the sample cools on the refractometer? I think the specific gravity may change with temperature, but not the refractive index.