Gastec 9D 二氧化氮被动发现管NO2(0.1~30 ppm)
制造商: Gastec Model: 9D - 报价要求
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Indicator: 0.1 ~ 30 ppm
Measuring Range: 0.1 ~ 30 ppm
Sampling Hours: 1 to 10 hours
Colour Change: White → Yellow
Reaction Principle: NO2 + o-Toluidine → Yellow product
Coefficient of Variation: 10% (for 1 to 30 ppm-hr)
Nr. of tests: 10
Measuring Range | 0.1 to 30 ppm |
Sampling Hours | 1 to 10 hours |
Detecting Limit | 0.05 ppm (10 hours) |
Colour Change | White → Yellow |
Reaction Principle | NO2 + o-Toluidine → Yellow product |
Coefficient of Variation | 10% (for 1 to 30 ppm-hr) |
Shelf Life | 1 Year |
Corrections for temperature & humidity | Temperature correction is necessary |
Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
Substance | Concentration | Interference | Change colour by itself to |
Bromine,Chlorine | + | Yellow | |
Ammonia Carbon monoxide Nitric oxide sulphur dioxide Organic gases and vapour |
No | No |
Calibration gas generation | Permeation tube method |
TLV-TWA | TLV-STEL | Explosive range |
0.2 ppm(2014) | - | - |
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