263 g/kg to PSU

263 g/kg = 264.289 PSU

g/kgPSU
248 g/kg249.215
253 g/kg254.24
258 g/kg259.264
263264.289
268 g/kg269.313
273 g/kg274.338
278 g/kg279.362

263 g/kg = 264.289 PSU

Formula

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