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氨气气体检测管3H Ammonia NH3，Measuring Range 0.2 to 1% 1 to 16% 16 to 32% Number of Pump Strokes 5 - 2 1 1/2 Correction Factor 1/5 to 1/2 1 2 Sampling Time 1 minute per pump stroke Detecting，氨气气体检测管价格，
详情介绍：
氨气气体检测管3H Ammonia NH3
Ammonia No.3H
NH3
| Performance |
Measuring Range | 0.2 to 1% | 1 to 16% | 16 to 32% |
Number of PumpStrokes | 5 - 2 | 1 | 1/2 |
Correction Factor | 1/5 to 1/2 | 1 | 2 |
Sampling Time | 1 minute per pumpstroke | ||
Detecting Limit | 0.05% (n=5) | ||
Color Change | Purple →Yellow | ||
Reaction Principle | 3NH3 + H3PO4 → (NH4)3PO4 | ||
| Coefficient ofVariation | 10% (for1 to 4 %), 5% (for 6 to 16 %) | ||
| ShelfLife | 3Years | ||
| Correctionsfor temperature & humidity | Unnecessary | ||
| Store the tubes at cool and darkplace. | |||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Hydrazine | - | Plus error | Discolor to yellowstain |
Carbondioxide | 1% or higher | Minus error | Nodiscoloration |
Amines other thanaromatic amines | - | Plus error | Discolor to yellowstain |
| Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
Dimethylamine | 1.2 | 1 | 1.2 to19.2% |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 25ppm | 35ppm | 15 to 28% |