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简单介绍：
异丙醇检测管113LL Isopropyl alcohol，Measuring Range 20 to 200 ppm 200 to 400 ppm，氨气、氯气、二氧化氮、二氧化硫、甲醛、硫酸二甲酯、氟化氢、硫化氢、氯化氢、砷化氢、汞蒸气、苯、甲苯、二甲苯、甲醇、乙醇、乙烯、乙炔、乙醚、汽油、光气、氰化氢、丙烯腈、磷化氢等几十种
详情介绍：
异丙醇检测管113LL Isopropyl alcohol
Isopropyl alcohol No.113LL
| Performance |
MeasuringRange | 20 to 200 ppm | 200 to 400 ppm |
Number of PumpStrokes | 2 | 1 |
CorrectionFactor | 1 | 2.2 |
SamplingTime | 3 minutes per pumpstroke | |
DetectingLimit | 5 ppm (n=2) | |
Color Change | Pink → Paleblue | |
Reaction Principle | CH3CH(OH)CH3 + Cr6++ H2SO4 → Cr3+ | |
| Coefficient ofVariation | 15% (for50 to 200 ppm), 10% (for 200 to 800 ppm) | |
| ShelfLife | 2 Years | |
| 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 |
Alcohols |
| + | Pale blue |
Esters,Ketones |
| No | No |
| Aliphatic hydrocarbon | No | No | |
| Aromatic hydrocarbon | No | No |
| Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
Ethylene glycolMEE | 0.76 | 2 | 15.2 to 152ppm |
1-Methoxy-2-propanol | 0.76 | 2 | 15.2 to 152ppm |
Propylalcohol | 0.68 | 2 | 13.6 to 136ppm |
Ethylene glycolMBE | 1.15 | 2 | 23 to 230 ppm |
Ethylene glycolMME | 1.0 | 2 | 20 to 200ppm |
| Calibration gasgeneration | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 200ppm | 400ppm | 2 to12.7% |