Common thresholds for chemical concentrations in indoor air
Formaldehyde 100μg/m3 (0.08 ppm)
Toluene 260μg/m3 (0.07 ppm)
Xylene 870μg/m3 (0.20 ppm)
p-dichlorobenzene 240μg/m3 (0.04 ppm)
Automatic gas sampler
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Features
- A flow volume of 50-250mL/min can be set for the inserted detector tube
- The fixed flow function automatically regulates load changes
- Real-time flow volume and integrated flow volume are automatically corrected to the values for 20ºC
- Automatic start enables sampling to begin after a preset time
- Automatic stop at preset time / volume, with total flow and transpired time calculations
- Ventilation system configured for uninterrupted sampling
- Compact and lightweight; 10 hrs. continuous operation on 2 AA batteries
- Specially-suited detector tubes for continuous workplace sampling (10 min.)
- Formaldehyde tubes 91P,91PL can be used
- Activated carbon and other solid-collecting detector tubes can be utilised
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| Gas Type |
Detector Tube Type |
Measurement Range |
| Formaldehyde |
91PL |
0.01-0.80 ppm |
| Formaldehyde |
91P |
0.02-1.44 ppm |
| Toluene |
122P |
100-7000μg/m3 |
| p-dichlorobenzene |
127P |
100-3000μg/m3 |
