Nitrous Gases Detection Tubes 20/a (20 - 500 ppm)
For short-term measurements more than 160 Draeger Tubes are available to measure the so called spot concentrations of specific gases.
A wide range of different gases and vapours can be detected and measured, such as:
- Determining and measuring concentration peaks
- Measuring personal exposure in the inhalation area
- Detecting leaks in pipelines, gas installations etc.
- Air analysis in sewers, shafts and confined spaces
|Standard Measuring Range:
||20 to 500 ppm
|Number of strokes n:
|Time for Measurement:
||approx. 30 sec
||± 10 to 15 %
||gray ──> red brown
||15 to 40 °C
||max. 40 mg H2O / L
||a) NO + CrVI ──> NO2
b) NO2 + o-dianisidine ──> red brown reaction product
||There is no influence of chlorine and ozone, if these gases are in range of their TLVs. Higher concentrations are indicated with different sensitivities.