Selection of Gases Measured and Instrumentation Available
| SO2 | N20 | Carbon Disulphuride | CALIBRATORS |
| NO-NO2-NOx | HONO | Trimethylbenzene | ZERO AIR GENERATORS |
| CO | TS (Total Sulphur) | Dichlorobenzene | PORTABLE ANALYZERS |
| CO2 | THC | Chlorine Dioxide | OPACITY METERS |
| O3 (Ozone) | M-NMHC | FLOW METERS | |
| BT(E)X | HCHO | and many more | HYDROGEN GENERATOR |
| VOC's | Styrene | OZONE GENERATORS | |
| HCl | Phenol | PERMEATION DRYERS | |
| NH3 | NO3 | GC-FID | |
| H2S | Cresol | GC-PID |
