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1,3-丁二烯气体检测管174 1,3-Butadiene 1,3-Butadiene No.174
CH2:CHCH:CH2
| Performance |
MeasuringRange | 50 to 800 ppm |
Number of Pump Strokes | 1 |
CorrectionFactor | 1 |
SamplingTime | 3 minutes per pumpstroke |
DetectingLimit | 10 ppm (n=1) |
ColorChange | Paleyellow |
ReactionPrinciple | 1,3-Butadiene reactswith palladium sulfate and ammonium |
| Coefficient ofVariation | 10% (for 50 to 200ppm), 5% (for 200 to 800 ppm) |
| ShelfLife | 3 Years |
| Correctionsfor temperature & humidity | Temperature correction is necessary |
| Store the tubes at cool and darkplace. | |
White| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Acetylene, Carbonmonoxide | 10 ppm | Plus error | Discolor toblue |
Ammonia, Hydrogencyanide | - | Plus error | Discolor towhite |
Hydrogen | 20% | Plus error | Discolors to blue forwhole layer |
Hydrogensulfide | 10 ppm | Plus error | Discolors toblack |
Ethylene | 1 ppm | Plus error | Discolors toblue |
Styrene | - | Plus error | Discolor to paleblue |
| Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
1,3-Pentadiene | 5.0 | 1 | 250 to 4000ppm |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 2ppm | - | 2.0 to 12% |