4,315 ppm to PSU

4,315 ppm = 4.336 PSU

ppmPSU
4,300 ppm4.321
4,305 ppm4.326
4,310 ppm4.331
4,3154.336
4,320 ppm4.341
4,325 ppm4.346
4,330 ppm4.351

4315 ppm = 4.336 PSU

Formula

1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation)