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简单介绍：
72乙硫醇检测管C2H5SH Ethyl mercaptanMeasuring Range 0.5 to 5 ppm 5 to 120 ppm Number of Pump Strokes 2 to 10 1 Correction Factor 1/2 to 1/10 1 Sampling Time 2 minutes
详情介绍：
72乙硫醇检测管C2H5SH Ethyl mercaptan
Ethyl mercaptan No.72
C2H5SH
| Performance |
Measuring Range | 0.5 to 5 ppm | 5 to 120 ppm |
Number of Pump Strokes | 2 to 10 | 1 |
Correction Factor | 1/2 to 1/10 | 1 |
Sampling Time | 2 minutes per pumpstroke | |
Detecting Limit | 0.2 ppm (n=10) | |
Color Change | White → Yellow | |
Reaction Principle | 2C2H5SH + PdSO4 → (C2H5S)2Pd+ H2SO4 | |
| Coefficient ofVariation | 10% (for 5 to 40ppm), 5% (for 40 to 120 ppm) | |
| ShelfLife | 3Years | |
| Correctionsfor temperature & humidity | Temperature correction is necessary | |
| Store the tubes at cool and darkplace. | ||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Acetylene,Ethylene | 2000 ppm | Plus error | Discolor pale brownto whole layer |
CarbonMonoxide | 2000 ppm | Plus error | Discolor pale brownto whole layer |
OtherMercaptans | - | Plus error | Discolor yellowstain |
HydrogenSulfide | 500 ppm | Plus error | Nostain |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.5ppm | - | 2.8to 18.2% |