Item #: 8101741
MFG: Draeger
Price: $133.00

Benzene Detection Tubes 15/a (15 - 420 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 Range15 to 420 ppm
Number of Strokes (n)20 to 2
Time for Measurementapprox. 4 min.
Standard Deviation ±30 %
Colour Changewhite ─> red brown
Temperature0 to 30° C
Absolute Humiditymax. 30 mg H2O / L
Reaction Principle2 C6H6 + HCHO ─> C6H5-CH2-C6H5 + H20
C6H5-CH2-C6H5 _ H2SO4 ─> p-chinoid compound
Cross SensitivityOther aromatics (toluene, xylene) are
retained in the pre-layer causing a reddish
brown discoloration. If the toluene or xylene
concentrations are too high the entire pre-
layer up to the indicating layer is discolored
making a benzene measurement impossible.
Petroleum hydrocarbons, alcohols and esters
do not affect the indication.
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