| Test | Requirement |
| Particle Count | ISO 8573-1 (QA Requirement) |
| Humidity (Pressure Dewpoint) | ISO 8573-1 (QA Requirement) |
| Oil Mist | ISO 8573-1 (QA Requirement) |
| Particle Count | GMP for food / medical, HTM for Medical Gas Pipeline |
| Humidity (Pressure Dewpoint) | GMP for food / medical, HTM for Medical Gas Pipeline |
| Oil Mist | GMP for food / medical, HTM for Medical Gas Pipeline |
| Microbiological (Total Bacteria / Total Fungus) | GMP for food / medical, HTM for Medical Gas Pipeline |
| Breathing Air | Singapore Standard 548, OSHA Standard 29 CFR 1019.134 Grade D, Various CGA Standards |
| Gas Purity Test (N2, H2, CH4, CO, CO2, O2, Ar, and etc) | As per customer requirement |
| Gas Contamination Test (N2, H2, CH4, CO, CO2, O2, Ar, and etc) | Molecular Acids, Bases, Condensables, Dopants, as per customer requirement |