Ammonia Detection Tubes 5/b (2.5 - 100 ppm)
Drager Short-term Tubes have proven to be a very cost-effective and reliable method for the measurement of gases.
For short-term measurements more than 160 Drager-Tubes are available to measure the so-called spot concentrations of specific gases. Measurement usually takes between 4 seconds and 15 minutes. The tubes are used either manually with the Drager-Tube pump accuro or automatically with the Drager X-act 5000.
A wide range of different gases and vapours can be detected and measured, e.g.: Determining and measuring concentration peaks, Measuring personal exposure in the inhalation area, Detecting leaks in pipelines, gas installations etc., and Air analysis in sewers, shafts and confined spaces.
Contains 10 tubes
|Standard Measuring Range||5 to 100 ppm|
|Number of Strokes (n)||1|
|Time for Measurement||approx. 10 sec.|
|Standard Deviation|| ±10 to 15 %|
|Colour Change||yellow ─> blue|
|Temperature||10 to 50° C|
|Absolute Humidity||< 20 mg H2O / L|
|Reaction Principle||NH3 + pH Indicator ─> blue reaction |
|Cross Sensitivity||Other basic substances such as|
e.g. organic amines are indicated as well
This indicated is not affected by:
300 ppm nitrous fumes
2,000 ppm sulfur dioxide
2,000 ppm hydrogen sulfide
|Extension of the Measuring|
|Using n=2 stroke, multiply the reading|
by 2; the measuring range will be
2.5 to 50 ppm.