Hydrogen Fluoride Detection Tubes 0.5/a (0.5 - 90 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||0.5 to 15 / 10 to 90 ppm|
|Number of Strokes (n)||10 / 2|
|Time for Measurement||approx. 2 min. / approx. 25 sec.|
|Standard Deviation||±20 to 30 %|
|Colour Change||blue violet ─> yellow|
|Temperature||10 to 40° C|
|Absolute Humidity||30 to 80 %|
|Reaction Principle||HF + pH indicator ──> yellow reaction product|
|Cross Sensitivity||Other mineral acids, e.g. hydrochloric acid|
or nitric acid, are indicated. Alkaline gases,
e.g. ammonia, causes minus results or
prevents an indication.