
| Chinhu | Zvivakwa zveUnyanzvi | ||
| Okisijeni yakachena | Okisijeni yakachena kwazvo | Okisijeni yakachena kwazvo | |
| Okisijeni (O2)2) kuchena (chikamu chevhoriyamu)/10-2≥ | 99.995 | 99.999 | 99.9999 |
| Hydrogen (H)2) zviri mukati (chikamu chevhoriyamu)/10-6≤ | 1 | 0.5 | 0.1 |
| Zviri mukati meArgon (Ar) (chikamu chevhoriyamu)/10-6≤ | 10 | 2 | 0.2 |
| Nitrogen (N)2) zviri mukati (chikamu chevhoriyamu)/10-6≤ | 20 | 5 | 0.1 |
| Kabhoni dhayokisaidhi (CO2)2) zviri mukati (chikamu chevhoriyamu)/10-6≤ | 1 | 0.5 | 0.1 |
| Huwandu hwehydrocarbon (chikamu chevhoriyamu) (yakaverengerwa nemethane)/10-6≤ | 2 | 0.5 | 0.1 |
| Mvura (H)2O) zviri mukati (chikamu chevhoriyamu)/10-6≤ | 3 | 2 | 0.5 |
Nzvimbo yekushandisa: inonyanya kushandiswa mukugadzirira musanganiswa wegesi wakajairika, kutsvagisa kwesainzi, kugadzirwa kwemasekete akabatanidzwa uye zvishandiso zve semiconductor, uye mimwe minda ine zvinodiwa zvakanyanya zvekuchena kweokisijeni.