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简单介绍：
干洗溶剂汽油检测管128 Stoddard Solvent，Measuring Range 50 to 8000 mg/m3 Number of Pump Strokes 1 Correction Factor 1 Sampling，干洗溶剂汽油检测管仪价格，干洗溶剂汽油检测管128 Stoddard Solvent
详情介绍：
干洗溶剂汽油检测管128 Stoddard Solvent
Stoddard Solvent No.128
| Performance |
Measuring Range | 50 to 8000 mg/m3 | |
Number of Pump Strokes | 1 | |
Correction Factor | 1 | |
Sampling Time | 1.5 minutes per pump stroke | |
Detecting Limit | 5 mg/m3 (n=1) | |
Color Change | White → Brown (ring) | |
Reaction Principle | Stoddard Solvent + I2O5 + H2S2O7 → I2 | |
| Coefficient of Variation | 15% (for 50`300 mg/m3), 10% (for 300`8000 mg/m3) | |
| 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 | Result | Change color by itself |
Carbon monoxide | 0.1% | Plus error | Pale brown (whole layer) |
Acetylene, Hexane, Ethylene | 0.2% | No effect | Pale brown (whole layer) |
Alcohols, Ketones,Esters | - | Plus error | Pale brown (whole layer) |
Aromatic hydrocarbons | - | Plus error | Dark green |
| Other substance measurable with this detector tube |
| Calibration gas generation | Vaper pressure method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 100 mg/m3 | - | 0.8 % or higher |