Item #: 8103281
MFG: Draeger

Mercaptan Detection Tubes 0.1/a (0/1 - 15 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 Range0,1 to 2.5 / 3 to 15  ppm
Number of strokes n:10 / 2
Time for Measurementapprox. 3 min. / approx. 40 sec.
Standard Deviation± 10 to 15 %
Color Changeyellow  ──>  red
Temperature5 to 40°C
Absolute Humidity2 to 40 mg H2O / L
Reaction Principle2 R-SH + Hg Cl2 ──> Hg (CH3S)2 + 2 HCl
HCl + pH-indicator ──> reddish reaction
Cross SensitivityPropyl mercaptan and tert-butyl-mercaptan
are indicated, but with different sensitivities
4 ppm ethylene, 30 ppm CO, 10 ppm 
tetrahydrothiophene do not affect the
indication, and 100 ppm hydrogen sulfide
do not affect the indication. Hydrogen sulfide
changes the pre-layer to black.