Hydrochloric Acid/Nitric Acid Detection Tubes 1/a (1 - 10 ppm HCI)
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||Hydrochloric Acid 1 to 10 ppm|
Nitric Acid 1 to 15 ppm
|Number of Strokes (n)||Hydrochloric Acid 10|
Nitric Acid 20
|Time for Measurement||approx. 1.5 min. / approx. 3 min.|
|Standard Deviation||±30 %|
|Colour Change||blue ─> yellow|
|Temperature||5 to 40° C|
For HNO3 measurements, the tube
scales are applicable only to 20° C.
Where the temperature is different,
the measuring result must be
multiplied as follows:
Temperature °C Factor
|Absolute Humidity||max. 15 mg H2O / L|
|Reaction Principle||HCl and/or HNO3 + pH indicator ──>|
yellow reaction product
|Cross Sensitivity||50 ppm nitrogen dioxide result in almost|
the same reading as 2 ppm nitric acid.
10 ppm hydrogen sulfide or 5 ppm
nitrogen dioxide do not affect the
reading. Chlorine concentrations in
excess of 1 ppm change the entire
indicating layer to a yellow-green.
|Additional Information||Extension of measuring range for|
hydrochloric acid: depending on the
stroke number, multiply the scale
value by the following factor.
| Measuring Range (ppm) Strokes Factor |
10 to 50 2 5
0.5 to 1 20 0.5