二氧化氮?dú)怏w檢測(cè)管9DL Nitrogen dioxide
Nitrogen dioxide No.9DL
Performance |
Measuring Range | 0.01 to 3.0ppm |
Sampling Hours | 1 to 24 hours |
Detecting Limit | 0.01 ppm |
Color Change | White→ Green |
Reaction Principle | ABTS +NO2 → Green product |
Coefficient ofVariation | 10%(for 0.01 to 3.0 ppm-hr) |
ShelfLife | 1 Year |
Correctionsfor temperature & humidity | Unnecessary |
Store the tubes inthe refrigerator to keep at 10ºC (50ºF) orbelow. |
Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Carbonmonoxiide | 10ppm | No | No discoloration (10 ppm) |
Chlorine | 0.07 ppm | No | No discoloration(0.07 ppm) |
Ozone | 0.045 ppm |
No | No discoloration (0.045 ppm) |
sulphur dioxide | 0.1 ppm |
| No discoloration (0.1ppm) |
Carbon dioxide | 600 ppm | No | No discoloration (600ppm) |
Formaldehyde | 0.1ppm | No discoloration (0.1ppm) |
Calibration gasgeneration | Diffusion tubemethod |
TLV-TWA | TLV-S | Explosive range |
3 ppm | 5 ppm | - |