Salifert Refracto Check is a calibration fluid for a refractometer
This Is NOT a refractometer
10ml of 35ppt / 1.026 SG calibration fluid.
The proper way to calibrate a refractometer is using a calibration fluid
at a salinity close to the levels that you'd expect not using freshwater.
Salifert Refract Check Solution
35 0/00 solution for refractometers only.
Before each use, shake the bottle, remove and salt scale from the nozzle, and discard the first 3 drops. Cap the bottle tightly after each use otherwise the value will increase it due to evaporation.
The content is sufficient for up to 100 testings