Mercury Vapor Detection Tubes (0.05 to 13.2mg/m3)
Gastec Detection Tube No. 40 measures Mercury Vapor with a Range of 0.05 to 13.2 mg/m3.
- Measuring Range:
- 0.05 to 0.25 mg/m3
- 0.25 to 6.0 mg/m3
- 6.0 to 13.2 mg/m3
- Number of Pump Strokes: 5, 1, 1/2
- Correction Factor: 1/5, 1, 2.2
- Sampling Time: 1.5 minutes per pump strokes
- Detecting Limit: 0.01 mg/m3 (5 pump strokes)
- Changes from White to Pale Orange
- Corrections for temperature & humidity: Unnecessary
- 3 Year Shelf Life
- Reaction Principle: Hg + 2Cu2I2 → Cu2(HgI4) + 2Cu
- Relative Standard Deviation: 10% (for 0.25 to 2 mg/m3), 5% (for 2 to 6 mg/m3)
- Store the tubes at cool and dark place.
Possible coexisting substances and their interferences
| Substance |
Interference |
Changes color by itself to |
| Hydrogen sulfide |
+ |
Pale orange (whole layer) |
| Chlorine |
+ |
Pale orange |
| Nitrogen dioxide |
+ |
Pale orange |
Mercury Vapor Detection Tubes (0.05 to 13.2mg/m3)
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