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环氧乙烷气体检测管163L Ethylene oxide，Measuring Range 0.4 to 1 ppm 1 to 100 ppm 100 to 350 ppm Number of Pump Stroke 4 2 1 Correction Factor 环氧乙烷气体检测管163L Ethylene oxide C2H4O
详情介绍：
环氧乙烷气体检测管163L Ethylene oxide
Ethylene oxide No.163L
C2H4O
| Performance |
MeasuringRange | 0.4 to 1 ppm | 1 to 100 ppm | 100 to 350 ppm |
Number of PumpStroke | 4 | 2 | 1 |
CorrectionFactor | 0.4 | 1 | 3.5 |
SamplingTime | 3 minutes per pumpstroke | ||
DetectingLimit | 0.1 ppm (n=4) | ||
ColorChange | Yellow → Reddishbrown | ||
ReactionFormula | C2H4O → 2HCHO | ||
| Coefficient ofVariation | 15% (for1 to 20 ppm), 10% (for 20 to 100 ppm) | ||
| ShelfLife | 1Year | ||
| Correctionsfor temperature & humidity | Temperature correction is necessary | ||
| Store the tubes inthe refrigerator to keep at 10oC (50oF) orbelow. | |||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Aldehydes,Ketones | - | Plus error | Produce reddish brownstain |
| Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
Epichlorohydrin | 1.2 | 2 | 1.2 to 120 ppm |
Propyleneoxide | 1.0 | 1 | 1 to 100ppm |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Permeation tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 1ppm | - | 3.6 to 100% |