Drager Detection Tubes - Dimethyl Sulphate 0.005/c (Pack of 9)
Drager Detection Tubes - Dimethyl Sulphate 0.005/c (Pack of 9)

Product Code - 6718701

exc VAT £84.35 inc VAT £101.22
Description / Features / Spec


Drager Detection Tubes - Dimethyl Sulphate 0.005/c (Pack of 9)

These short term detection tubes from Drager Safety is for the measurement of Dimethyl Sulphate (0.005/c).  Other substances able to be detected include Diethyl Sulphate and Dimethyl Sulphate.   This particular pack of tubes contains 9 tubes and has a shelf life of 2 years.

Key Features

  • Measurements in hard-to-reach places can be obtained
  • Useful for on-the-spot measurements in particular
  • Readings may take between 10 seconds and 15 minutes depending on both the tube and pump
  • Variations in concentration levels and contamination of breathing areas are two applications which may use tubes and pumps
  • Pre-entry checks in confined space entry applications may use tubes 


Application Range  
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 %
Color Change: white - blue
Ambient Operating Conditions  
Temperature:  15 to 30 °C
Absolute Humidity:  3 to 15 mg H2O / L
Reaction Principle  
Dimethyl sulphate + 4-(4-Nitrobenzyl)-pyridine ä colorless
alkylation product
colorless alkylation product ä blue reaction product
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.

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