Phosphine Detection Tubes 25/A (25 - 10000 ppm)
For short-term measurements more than 160 Draeger-Tubes are available to measure the so-called spot concentrations of specific gases. 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||200 to 10,000 ppm / 25 to 900 ppm|
|Number of strokes n:||1 / 10|
|Time for Measurement||approx. 1.5 min. / approx. 13 min.|
|Standard Deviation||± 10 to 15 %|
|Color Change||yellow ──> dark brown|
|Temperature||0 to 40 °C|
|Absolute Humidity||<30 mg H2O / L|
|Reaction Principle||PH3 + Au^3+ ──> Au (colloidal)|
|Cross Sensitivity||Arsine and antimony hydride are indicated,|
but with lower sensitivities.
Hydrogen sulfide, ammonia, hydrochloric acid
and mercaptans are retained in the