item | Teknikal na Ari-arian |
Mataas na kadalisayan ng helium | |
Helium He purity (volume fraction)/10-2≥ | 99.999 |
Neon (Ne) content (volume fraction)/10-6≤ | 4 |
Hydrogen (H2) nilalaman (volume fraction)/10-6 ≤ | 1 |
Oxygen (O2) nilalaman (volume fraction)/10-6 ≤ | 1 |
Nilalaman ng Argon (Ar) (volume fraction)/10-6 ≤ | |
Nitrogen (N2) nilalaman (volume fraction)/10-6 ≤ | 2 |
Nilalaman ng carbon monoxide (CO) (volume fraction)/10-6≤ | 0.5 |
Carbon dioxide (CO2) nilalaman (volume fraction)/10-6≤ | 0.5 |
Methane (CH4) nilalaman (volume fraction)/10-6≤ | 0.5 |
Tubig H2O nilalaman (volume fraction)/10-6≤ | 3 |
Kabuuang nilalaman ng magazine/10-6≤ | 10 |