Draeger CH31901 Ammonia 0.5%/a Detector Tubes (10 tests per box)

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 vol.