Phosphine Detection Tubes 0.01/a (0.01 - 1.0 ppm)
For short-term measurements more than 160 Draeger-Tubes are available to measure the spot concentrations of specific gases. Measurement usually takes between 4 seconds and 15 minutes. The tubes are used either manually with the Draeger-Tube Accuro Pump or automatically with the Draeger X-act 5000.
A wide range of different gases and vapors 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
Phosphine Detection Tubes 0.01/a (0.01 - 1.0 ppm)
Standard Measuring Range: |
0.1 to 1.0 ppm / 0.01 to 0.3 ppm |
Number of strokes n: |
3 / 10 |
Time for Measurement: |
approx. 2.5 min / approx. 8 min |
Standard Deviation: |
± 10 to 15 % |
Color Change: |
yellow ??> red |
Temperature: |
2 to 40 °C |
Absolute Humidity: |
< 20 mg H2O / L |
Reaction Principle: |
PH3 + HgCl2 ??> HCl + Hg-Phosphide HCl + pH Indicator ??> red reaction product |
Cross Sensitivity: |
Arsine is indicated with different sensitivity. Up to 6 ppm sulfur dioxide or 15 ppm hydrochloric acid does not interfere, but higher concentrations cause plus errors. More than 100 ppm ammonia leads to minus errors. 30 ppm hydrocyanic acid does not affect the 3 stroke test, but with the 10 stroke test minus errors of up to 50 % can occur. |
Phosphine Detection Tubes 0.01/a (0.01 - 1.0 ppm)
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