Phosgene Detection Tubes 0.25/c (0.25 - 15 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 vapors 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:
||0.25 to 5 ppm
|Number of strokes n:
|Time for Measurement:
||approx. 1 min
||± 15 to 20 %
||yellow ──> blue green
||5 to 35 °C
||3 to 15 mg H2O / L
||COCl2 + Ethylaniline + Dimethylaminobenzaldehyde ──> blue green reaction product
||No interference by up to 100 ppm hydrochloric acid. Carbonyl bromide and acetyl chloride are indicated, but with different sensitivities. It is impossible to measure phosgene in the presence of carbonyl bromide or acetyl chloride.