Item #: 6718701
MFG: Draeger
Price: $146.00

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 Range0.005 to 0.05 ppm
Discoloration compared to color standard.
Number of Strokes (n)200
Time for Measurementapprox. 50 min.
Standard Deviation±30 %
Colour Changewhite ─> blue
Temperature15 to 30° C
Absolute Humidity3 to 15 mg H2O / L
Reaction PrincipleDimethyl sulphate + 4-(4-Nitrobenzyl)-pyridine
> colorless alkylation product

colorless alkylation product > blue
reaction product
Cross SensitivityPhosgene 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 InformationAfter 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.
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