3LA 氨氣氣體檢測管3LA Ammonia NH3
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- 公司名稱 上海儀在機電科技有限公司
- 品牌
- 型號 3LA
- 產(chǎn)地
- 廠商性質(zhì) 經(jīng)銷商
- 更新時間 2018/5/13 21:51:06
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氨氣氣體檢測管3LA Ammonia NH3
的詳細(xì)介紹
氨氣氣體檢測管3LA Ammonia NH3 Ammonia No.3LA
NH3
| Performance |
| Measuring Range | 2.5to 5ppm | 5 to 100 ppm | 100 to 200ppm |
| Number of PumpStrokes | 2 | 1 | 1/2 |
| Correction Factor | 1/2 | 1 | 2 |
| Sampling Time | 30 seconds per pumpstroke | ||
| Detecting Limit | 0.5ppm （n=2） | ||
| Color Change | Purple →Yellow | ||
| Reaction Principle | 3NH3 + H3PO4 → （NH4）3PO4 | ||
| Coefficient ofVariation | 10% （for5 to 20 ppm）, 5% （for 20 to 100 ppm） | ||
| ShelfLife | 3Years | ||
| 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 |
| Carbondioxide | 1% | Minuserror（20%） | - |
| Hydrazine | - | Plus error | Produce yellowdiscoloration |
| Amines | 1/15 | Plus error | Discolors at 5ppm（Yellow） |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-S | Explosive range |
| 25ppm | 35ppm | 15 to 28% |
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