UOM: Box
Box Qty: 5
Item #: 6728211
MFG: Draeger
Price: $89.20

Methyl Bromide Detection Tubes 3/a (3 - 100 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 5 tubes
Standard Measuring Range10 to 100 / 3 to 35 ppm
Number of strokes n:5 activation strokes in methyl bromide
free air before testing.
2 / 5
Time for Measurementapprox. 1 min. / approx 3 min.
Standard Deviation± 10 to 15 %
Color Changepale gray green ──>  blue gray
Temperature0 to 40°C
Absolute Humidity5 to 12 mg H2O / L
Reaction Principlea) CH3Br + H2S2O7  ──> gaseous cleavage product
b1) gaseous cleavage product + KMnO4 ──> Br2
b2) Br2 + Diphenylbenzidine ──> blue gray
      reaction product
Cross SensitivityOther chlorinated hydrocarbons are indicated,
but with different sensitivities.
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