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简单介绍：
氰化氢检测管12H Hydrogen cyanide，Measuring Range 0.05 to 1.6% Number of Pump Strokes 1 Correction Factor 1 Sampling Time 1 minute per pump stroke Detecting，氰化氢气体检测管价格
详情介绍：
氰化氢检测管12H Hydrogen cyanide Hydrogen cyanide No.12H
HCN
| Performance |
Measuring Range | 0.05 to 1.6% |
Number of Pump Strokes | 1 |
Correction Factor | 1 |
Sampling Time | 1 minute per pump stroke |
Detecting Limit | 0.005% (n=1) |
Color Change | Yellow → White |
Reaction Principle | HCN+Na2Pd(SO3)2 → White reaction product |
| Coefficient of Variation | 10% (for 0.05 to 0.4 %), 5% (for 0.4 to 2 %) |
| Shelf Life | 3 Years |
| Corrections for temperature & humidity | Temperature correction is necessary |
| Store the tubes at cool and dark place. | |
| Possible coexisting substances and their interferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Carbon monoxide | - | Plus error | Produces blackish brown |
Hydrogen sulfide | - | Plus error | Produces blackish brown |
Ethylene | - | Plus error | Produces blackish brown |
| Other substance measurable with this detector tube |
| Calibration gas generation | High pressure gas cylinder method | |
| TLV-TWA | TLV-STEL | Explosive range |
| - | C 4.7 ppm | 5.6 to 40% |