Item #: 6728981
MFG: Draeger

Mercaptan Detection Tubes 0.5/a (0.5 - 5 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 Range0.5 to 5 ppm
Number of strokes n:5
Time for Measurementapprox. 5 min.
Standard Deviation± 10 to 15 %
Color Changewhite ──> yellow
Temperature10 to 40°C
Absolute Humidity3 to 15 mg H2O / L
Reaction Principle2 R-SH + Pd^2+ ──> Pd (RS)2 + 2 H+
Cross SensitivityHigher molecular weight alkyl mercaptans
(e.g. propyl - and butyl mercaptans) are
indicated with approximately the same
sensitivity. 1,000 ppm ethylene, 2,000 ppm
carbon monoxide and 200 ppm hydrogen
sulfide do not affect the indication.
Hydrogen sulfide discolors the pre-layer
black. Dimethyl sulfide: 10 ppm no influence,
but the color of the mercaptan indication
is paler. Dimethyl disulfide: 2 ppm no