Dimethyl Sulfate Detection Tubes 0.005/c (0.005 - 0.05 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||0.005 to 0.05 ppm|
Discoloration compared to color standard.
|Number of Strokes (n)||200|
|Time for Measurement||approx. 50 min.|
|Standard Deviation||±30 %|
|Colour Change||white ─> blue|
|Temperature||15 to 30° C|
|Absolute Humidity||3 to 15 mg H2O / L|
|Reaction Principle||Dimethyl sulphate + 4-(4-Nitrobenzyl)-pyridine|
──> colorless alkylation product
colorless alkylation product ──> blue
|Cross Sensitivity||Phosgene and chloroformates cause a yellow|
discoloration of the indicating layer, and it
is impossible to perform a dimethyl sulphate
measurement. Alcohols, ketones, aromatics
and petroleum hydrocarbons in the TLV
range do not affect the indication.
|Additional Information||After carrying out the required 200 pump|
strokes the reagent ampoule must be
broken, the liquid transferred onto the
indicating layer and carefully drawn through it
using the pump. Wait five minutes before
evaluating the indication. The tube must
not be exposed to direct sunlight during
the 5 minutes waiting period.