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简单介绍：
氨气气体检测管3D NH3 Ammonia，Measuring Range 2.5 to 1000 ppm Sampling Hours 0.5 to10 hours Detecting Limit 0.5 ppm (10 hours)氨气气体检测管价格，氨气气体检测管3D NH3 Ammonia
详情介绍：
氨气气体检测管3D NH3 Ammonia Ammonia No.3D
NH3
| Performance |
Measuring Range | 2.5 to 1000ppm |
Sampling Hours | 0.5 to10 hours |
Detecting Limit | 0.5 ppm (10hours) |
Color Change | Purple →Yellow |
Reaction Principle | 2NH3 + H2SO4 → (NH4)2SO4 |
| Coefficient ofVariation | 10%(for 25 to 500 ppm-hr) |
| ShelfLife | 3 Year |
| Correctionsfor temperature & humidity | Temperature correction isnecessary |
| Store the tubes atcool and dark place. | |
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Interference | Change colour byitself to |
Amines,Hydrazine | + | Yellow |
| Aromatic amines | No |
No |
| Othersubstance measurable with this detectortube |
Substance | CorrectionFactor | SamplingTime | MeasuringRange |
Dimethylamine | 0.75 | 0.5 to 10hours | 1.9 to 750 ppm |
N,N-Dimethylethylamine | 1.6 | 0.5 to 10 hours | 4 to 1600 ppm |
Hydrazine | 0.65 | 0.5 to 10 hours | 1.6 to 650 ppm |
Triethylamine | 2.1 | 0.5 to 10 hours | 5.3 to 2100ppm |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 25 ppm | 35ppm | 15 to28% |