This calculator can be used to convert back and forth between the most common units for measuring salinity. Some electronic probes has automatic temperature correct, if this is the case the display will show the conductivity at 77°F (25°C). Hydrometers might be calibrated for a different temperature than your water sample, in such cases use the correction calculator before converting the value measured.

Some of the calculations above are approximations, therefore the last decimal might vary from other similar calculations.

EQUATION OF STATE - CHAPTER III Code 10 - CONVERSION BETWEEN CONDUCTIVITY AND PSS-78 SALINITY

Different brands of hydrometers are calibrated differently. Therefore the measured specific gravity might need to be corrected according to the actual temperature in the aquarium vary more then a few degrees from the calibration temperature of the hydrometer.

EQUATION OF STATE - CHAPTER III

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