Draeger 6728651 Pyridine 5/a Detector Tubes (10 tests per box)

Application Range:

• Standard Measuring Range: 5 ppm
• Number of Strokes n: 20 additional 5 strokes have to be taken in clean air after opening the second reagent ampoule.
• Time for Measurement: approx. 20 min
• Standard Deviation: ± 30 %
• Color Change: white → brown red

Ambient Operating Conditions:

• Temperature: 10 to 30 °C
• Absolute Humidity: 3 to 15 mg H2O / L

Reaction Principle:

• Pyridine + Aconitic acid + Acetic anhydride → brown red reaction product

Cross Sensitivity:

• Ammonia in the TLV range does not interfere.

Additional Information:

• Before carrying out the measurement the lower reagent ampoule must be broken and the liquid transferred to the indication layer so that it is saturated.
• After performing 20 pump strokes, the upper reagent ampoule must be broken.
• The granular contents must be shaken out of the broken ampoule by gently tapping the side of the tube.
• The tube must be held vertically with the inlet of the tube up during the 5 additional pump strokes.