Gastec 163 Quick-measuring Detector tubes Ethylene oxide C2H4O (0.05 ~ 3.0%)
ManufacturerGastec(View more products from this manufacturer)
Model163
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Indicator: 0.1 ~ 3.0%
Measuring Range: 0.05 ~ 3.0%, Number of Pump Strokes 1
Sampling Time: 45 seconds per pump stroke
Colour Change: Orange → Green
Reaction Principle: C2H4O+ Cr6+ + H2SO4 → Cr3+
Coefficient of Variation: 10% (for 0.05 to 1.0 %), 5% (for 1.0 to 3.0 %)
Nr. of tests: 10
Pump: GV-100S/110S
Performance
| Measuring Range | (0.05 ) to 3.0% |
| Number of Pump Strokes | 1 |
| Correction Factor | 1 |
| Sampling Time | 45 seconds per pump stroke |
| Detecting Limit | 0.02% (n = 1) |
| Colour Change | Orange → Green |
| Reaction Principle | C2H4O+ Cr6+ + H2SO4 → Cr3+ |
| Coefficient of Variation | 10% (for 0.05 to 1.0 %), 5% (for 1.0 to 3.0 %) |
| Shelf Life | 3 Years |
| Corrections for temperature & humidity | Unnecessary |
| Store the tubes at cool and dark place. | |
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Aromatic HCs | + | Green | |
| Alcohols, Esters, Ethers | + | Green |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| 1,4-Dioxane | Factor: 2.0 | 1 | 0.1 to 6.0% |
| Propylene oxide | Factor: 1.3 | 1 | 0.065 to 3.9% |
| Calibration gas generation | Static gas dilution method |
| TLV-TWA | TLV-STEL | Explosive range |
| 1 ppm(2014) | - | 3.0 to 100% |
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