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, such as:
- Determining and measuring concentration peaks
- Measuring personal exposure in the inhalation area
- Detecting leaks in pipelines, gas installations etc.
- Air analysis in sewers, shafts and confined spaces
|Standard Measuring Range:
||0.005 to 0.05 ppm
Discoloration compared to color standard.
|Number of Strokes (n):
|Time for Measurement:
||approx. 50 min
||white ─> blue
||15 to 30° C
||3 to 15 mg H2O / L
||Dimethyl sulphate + 4-(4-Nitrobenzyl)-pyridine
──> colorless alkylation product
colorless alkylation product ──> blue reaction product
||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.
||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 minute waiting period.