Maksimal temperatur for T1 er 450 grader Celsius, mens minimumstemperaturen for T6 er 85 grader Celsius. Alle temperaturer mellom T6 (85 °C) og T1 (450 °C) er tillatt.
| Gassklassifisering | Temperaturgruppe | |||||
|---|---|---|---|---|---|---|
| - | T1 | T2 | T3 | T4 | T5 | T6 |
| - | T＞450 | 450≥T＞300 | 300≥T＞200 | 200≥T＞135 | 135≥T＞100 | 100≥T＞85 |
| I | Metan | |||||
| IIA | Etan, Propan, Aceton, Fenetyl, Ene, Aminobenzen, Toluen, Benzen, Ammoniakk, Karbonmonoksid, Etylacetat, Eddiksyre | Butan, etanol, propylen, butanol, eddiksyre, butylester, amylacetat, eddiksyreanhydrid | Pentan, heksan, heptan, dekan, oktan, bensin, hydrogensulfid, sykloheksan, bensin, parafin, diesel, petroleum | Eter, Acetaldehyd, Trimetylamin | Etylnitritt | |
| IIB | Propen, acetylen, cyklopropan, koksovnsgass | Epoksy Z-alkan, epoksypropan, butadien, etylen | Dimetyleter, isopren, hydrogensulfid | Dietyleter, dibutyleter | ||
| IIC | Vanngass, hydrogen | Acetylen | Karbondisulfid | Etylnitrat | ||
