1,200 ppm to PSU

1,200 ppm = 1.206 PSU

ppmPSU
1,185 ppm1.191
1,190 ppm1.196
1,195 ppm1.201
1,2001.206
1,205 ppm1.211
1,210 ppm1.216
1,215 ppm1.221

1200 ppm = 1.206 PSU

Formula

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