3H 氨气气体检测管3H Ammonia NH3
具体成交价以合同协议为准
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- 型号 3H
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- 更新时间 2018/5/16 6:28:21
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氨气气体检测管3H Ammonia NH3
的详细介绍
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-S | Explosive range |
| 25ppm | 35ppm | 15 to 28% |
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