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简单介绍：
邻二氯苯气体检测管127 O-Dichlorobenzene，Measuring Range 2.5 to 300 ppm Number of Pump Strokes 2 Correction Factor 1 Sampling Time 1.5 minutes，，邻二氯苯气体检测管127 O-Dichlorobenzene
详情介绍：
邻二氯苯气体检测管127 O-Dichlorobenzene
O-Dichlorobenzene No.127
C6H4Cl2
| Performance |
MeasuringRange | 2.5 to 300 ppm |
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Number of Pump Strokes | 2 |
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Correction Factor | 1 |
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SamplingTime | 1.5 minutes per pumpstroke | ||
DetectingLimit | 1 ppm (n=2) | ||
ColorChange | White → Lightbrown | ||
ReactionPrinciple | C6H4Cl2 + I2O5 + Cr6+ + H2S2O7 → I2 | ||
| Coefficient ofVariation | 10% (for2.5 to 10 ppm), 5% (for 30 to 300 ppm) | ||
| ShelfLife | 3Years | ||
| Correctionsfor temperature & humidity | Temperature correction is necessary | ||
| Store the tubes atcool and dark place. | |||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color byitself |
Aromatichydrocarbons |
| Plus error | Light brown |
Acetylene | 0.2% | Plus error | Light brown |
Carbonmonoxide | 0.1% | No effect |
|
Ethylene,Esters | 0.2% | No effect |
|
| Hexane | 0.2% | ||
| Alcohols, Ketones | 1% | No |
| Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
m-Dichlorobenzene | 1.0 | 2 | 2.5 to 300 ppm |
p-Dichlorobenzene | 1.0 | 2 | 2.5 to 300ppm |
| Calibration gasgeneration | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 25 ppm | 50ppm | 2.2 to 12% |