Draeger
Ammonia 0.5%/a, 0.5 - 10 Vol.-%, (CH31901)
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Ammonia 0.5%/a, 0.5 - 10 Vol.-%, Part # CH31901, 10 Tests
Application Range
Standard Measuring Range: 0.5 to 10 vol. %
Number of Strokes n: 1 + 1 desorption stroke in clean air
Time for Measurement: 20 s per stroke
Standard Deviation: ± 10 to 15 %
Color Change: yellow violet
Ambient Operating Conditions
Temperature: 10 to 30 °C
Absolute Humidity: 3 to 12 mg H2O / L
Reaction Principle
NH3 + pH indicator - purple reaction product
Cross Sensitivity
Other basic substances such as e.g. organic amines are indicated as well.
Extension of the Measuring Range
Using n = 10 + 1 desorptionstroke in clean air divide the reading by 10; the measuring range will be 0.05 to 1 % by v