Hydrogen Detection Tubes (0.5 to 2.0%)
Gastec Detection Tube No. 30 measures Hydrogen with a Range of 0.5 to 2%.
- Measuring Range: 0.5 to 2.0%
- Number of Pump Strokes: 1 (100 ml)
- Correction Factor: 1
- Sampling Time: 3 minutes per pump stroke
- Detecting Limit: 0.5% (1 pump stroke)
- Changes from Yellow to Yellowish Brown
- Corrections for temperature & humidity: Unnecessary
- Reaction Principle: H2 + Na2Pd(SO3)2 → Pd + Na2SO3 + H2SO3
- 3 Year Shelf Life
- Store the tubes at cool and dark place.
Possible coexisting substances and their interferences:
| Substance |
Interference |
Changes color by itself to |
| Acetylene |
Two Layers
(yellowish brown & dark brown) |
Blackish brown |
| Carbon monoxide |
Two Layers
(yellowish brown & dark brown) |
Blackish brown |
| Hydrogen sulfide |
Two Layers
(yellowish brown & dark brown) |
Blackish brown |
| Ethylene |
+ |
Yellowish brown |
Hydrogen Detection Tubes (0.5 to 2.0%)
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