Ammonia Detection Tubes 2/a (2 - 30 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||2 to 30 ppm|
|Number of Strokes (n)||5|
|Time for Measurement||approx. 1 min.|
|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 product|
|Cross Sensitivity||This tube indicates other basic gases|
(e.g. organic amines).
No interference by 300 ppm nitrous fumes
2,000 ppm sulphur dioxide or 2,000 ppm