Oxygen Purity Levels

These are typical purity levels. We are able to supply many other grades, certified gases, mixes and pressures to fit your requirements.

Welding / Industrial Grade

minimum purity 99.5%, Max Moisture 50ppm

Oxygen Extra Dry 2.6

min purity 99.6%, max H2O 10 ppm

Oxygen Zero Grade 2.6

min purity 99.6%, THC < 0.5 ppm

Oxygen Ultra High Purity 4.3

min purity 99.993%, H20 < 3 ppm, N2 < 10 ppm, THC < 1 ppm, Ar < 40 ppm

Oxygen Research 6.0

min purity 99.9999%, H20 < 0.5 ppm, N2 < 0.2 ppm, THC < 0.1 ppm, CO2 < 0.1 ppm, CO < 0.1 ppm, Ar < 0.2 ppm, Kr < 0.1 ppm, Xe < 0.1 ppm, H2 < 0.1 ppm