Inspection Items |
Unit |
Standard |
|
Appearance |
|
Colourless and Pungent Smell Gas |
|
Purity |
% |
≥99.99 |
|
Impurity Content |
Hydrogen |
ppm |
≤100 |
Nitrogen |
ppm |
≤85 |
|
Oxygen |
ppm |
≤10 |
|
Carbon Dioxide |
ppm |
≤400 |
|
Water |
ppm |
≤5 |