Methyl Bromide Detection Tubes 0.2/a (0.2 - 8 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 Range||0.2 to 2 ppm / 2 to 8 ppm|
|Number of strokes n:||5/2|
|Time for Measurement||approx. 8 min. / approx. 4 min.|
|Standard Deviation||± 15 to 20 %|
|Color Change||light color ──> green|
|Temperature||2 to 40°C|
|Absolute Humidity||< 20 mg H2O / L|
|Reaction Principle||CH3 Br + H2S2O7 + chromate ──> Br2|
Br2 + o-Tolidine ──> green reaction product
|Cross Sensitivity||Vinyl chloride or carbon tetrachloride: <2|
ppm no indication. Methyl bromide cannot
be measured in the presence of
perchloroethylene or trichloroethylene.
Sulfuryl fluoride, phosphine, ethylene oxide,
ammonia, hydrocyanic acid, chloropicrin and
formaldehyde below their AGW/TLV values
are not indicated. Ethylene dibromide is
indicated with 1.2 times its sensitivity.