Draeger 6718701 Dimethyl Sulfate 0.005/c Detector Tubes (9 tests per box)

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 → 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.