Dräger Tubes For Short Term Measurements: Phosgene 0.25/c
Dräger Safety offer a massive range of short-term gas detection tubes for the measurement of various gases. This particular set of tubes is for (Phosgene 0.25/c).
The tubes come in a pack of 10 tubes and have a shelf life of 2 years.
|Standard Measuring Range:||0.25 to 5 ppm|
|Number of Strokes n:||5|
|Time for Measurement:||approx. 1 min|
|Standard Deviation:||± 15 to 20 %|
|Colour Change:||yellow to blue green|
Ambient Operating Conditions:
|Temperature:||5 to 35 °C|
|Absolute Humidity||3 to 15 mg H2O / L|
COCI2 + 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..
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