Pyridine Detection Tubes 5/A (5 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:
|Number of strokes n:
additional 5 strokes have to be taken in clean air after reopening the second reagent ampoule
|Time for Measurement:
||approx. 20 min
||± 30 %
||white ──> brown red
||10 to 30 °C
||3 to 15 mg H2O / L
||Pyridine + Aconitic acid + Acetic anhydride ──> brown red reaction product
||Ammonia in the TLV range does not interfere
||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.