Draeger CH20701 Chlorine 50/a Detector Tubes (10 tests per box)

Application Range:

• Standard Measuring Range: 50 to 500 ppm
• Number of Strokes n: 1
• Time for Measurement: Approx. 20 sec
• Standard Deviation: ± 10 to 15 %
• Color Change: Grey Green → Orange Brown

Ambient Operating Conditions:

• Temperature: 10 to 40 °C
• Absolute Humidity: < 40 mg H2O / L

Reaction Principle:

• Cl2 + o-tolidine → orange brown reaction product

Cross Sensitivity:

• Bromine is indicated with the same sensitivity, but with a higher standard deviation ± 25 to 30 %.
• Chlorine dioxide and nitrogen dioxide are indicated as well, but with different sensitivities.