Hydrochloric Acid/Nitric Acid Detection Tubes 1/a (1 - 10 ppm HCI)

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Item #: 8101681
MFG: Draeger
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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 RangeHydrochloric Acid 1 to 10 ppm
Nitric Acid 1 to 15 ppm
Number of Strokes (n)Hydrochloric Acid 10
Nitric Acid 20
Time for Measurementapprox. 1.5 min. / approx. 3 min.
Standard Deviation±30 %
Colour Changeblue ─> yellow
Temperature5 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
40 0.3
30 0.4
10 2
Absolute Humiditymax. 15 mg H2O / L
Reaction PrincipleHCl and/or HNO3 + pH indicator ─>
yellow reaction product
Cross Sensitivity50 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 InformationExtension 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