Application Range
Standard Measuring Range: 0.1 to 2ppm
Number of Strokes n: 15
Time for Measurement: approx. 37.5min
Standard Deviation: ±20 to 30%
Color Change: yellow -› blue green
Ambient Operating Conditions
Temperature: 0 to 40°C
Absolute Humidity: 1 to 20mg H2O / L
Reaction Principle
CCl3NO2 + H2S2O7 ->COCl2
COCl2 +diethylaniline+dimethylaminobenzaldehyde ->bluish-green reaction product
Cross Sensitivity
The indication is not affected by:
50 ppm ammonia
10 ppm hydrocyanic acid
1 ppm ethylene oxide
1 ppm phosphine
5 ppm methyl bromide
15 ppm sulfuryl fluoride
10 ppm formaldehyde
10 ppm chloroform
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