Live Engineering Dashboard

Well Testing Toolbox

Interactive Tools

Engineering calculators and conversion utilities for field work.

Enter % reading from refractometer

Results in Sodium Chloride (mgNaCl)

Results in ppm Chlorides

* Make sure the refrac has been zeroed before use.

1. Sodium Chloride Concentration:

mgNaCl = Reading (%) × 10,000

$$[NaCl]_{mg/L} = \text{Reading}\% \times 10,000$$

2. Chloride Ions (ppm):

ppm Cl⁻ = mgNaCl ÷ 1.84

$$Cl^-_{ppm} = \frac{[NaCl]_{mg/L}}{1.84}$$