Gastec 9DL Passive Dosl Tubes Nitrogen dioxide NO2 (0.01 ~ 3.0 ppm)
Manufacturer: Gastec Model: 9DL - Request a Quotation
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Indicator: 0.3 to 3 ppm
Measuring Range: 0.01 to 3.0 ppm
Sampling Hours: 1 to 24 hours
Colour Change: White → Green
Reaction Principle: ABTS + NO2 → Green product
Coefficient of Variation: 10% (for 0.01 to 3.0 ppm-hr)
Nr. of tests: 10
Measuring Range | 0.01 to 3.0 ppm |
Sampling Hours | 1 to 24 hours |
Detecting Limit | 0.01 ppm |
Colour Change | White → Green |
Reaction Principle | ABTS + NO2 → Green product |
Coefficient of Variation | 10% (for 0.01 to 3.0 ppm-hr) |
Shelf Life | 1 Year |
Corrections for temperature & humidity | Unnecessary |
Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
Substance | Concentration | Interference | Change colour by itself to |
Carbon monoxiide | ≦ 10ppm | No | No ( ≦ 10 ppm) |
Chlorine | ≦ 0.07 ppm | No | No ( ≦ 0.07 ppm) |
Ozone | ≦ 0.045 ppm | No | No ( ≦ 0.045 ppm) |
sulphur dioxide | No ( ≦ 0.1 ppm) | ||
Carbon dioxide | ≦ 600 ppm | No | No ( ≦ 600 ppm) |
Formaldehyde | No ( ≦ 0.1 ppm) |
Calibration gas generation | Permeation tube method |
TLV-TWA | TLV-STEL | Explosive range |
0.2 ppm(2014) | - | - |
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