Aliphatic Hydrocarbons Detection Tubes (140 - 6 to 3000 ppm)
Gastec Detector Tube No 140 is used for the detection of Aliphatic Hydrocarbons within the measuring range of 6-3000 ppm.
Measuring Range:
- 6 to 20 ppm - 2 pump strokes - Correction Factor of 0.3
- 20 to 1000 ppm - 1 pump stroke - Correction Factor of 1
- 1000 to 3000 ppm - 1/2 pump stroke - Correction Factor of 3
- Sampling Time: 2 minutes per pump stroke
- Detecting limit: 1 ppm (2 pump strokes)
- Changes from Yellow to Blackish brown
- Corrections for temperature & humidity: Temperature correction is necessary
- Relative Standard Deviation: 10% (for 20 to 1000 ppm)
- 2 Year Shelf Life
- Reaction Principle:
- Aliphatic Hydrocarbons + Cr6+ + H2SO4 → Cr3+
- Store the tubes at a cool and dark place.
Aliphatic Hydrocarbons Detection Tubes (140 - 6 to 3000 ppm)
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