Ozone 0.05/b, 0.05 - 0.7 PPM, Part # 6733181, 10 Tests 

Application Range

Standard Measuring Range: 0.05 to 0.7 ppm

Number of Strokes n: 10

Time for Measurement: approx. 3 min

Standard Deviation: ± 10 to 15 %

Color Change: pale blue š white

Ambient Operating Conditions

Temperature: 0 to 40 °C

Absolute Humidity: 2 to 30 mg H2O / L

Reaction Principle

O3 + indigo š isatine

Cross Sensitivity

No interference by:

1 ppm sulfur dioxide

1 ppm chlorine

1 ppm nitrogen dioxide

Higher concentrations of chlorine and nitrogen dioxide discolor the indicating layer a diffuse white to pale grey.

Extension of the Measuring Range

Using n = 5, multiply the reading by 2; the measuring range will be 0.1 to 1.4 ppm. Using n = 100, divide the reading by 10; the range of measurement is 0.005 to 0.07 ppm.