131L 氯乙烯氣體檢測管131L Vinyl chloride
具體成交價以合同協(xié)議為準
- 公司名稱 上海儀在機電科技有限公司
- 品牌
- 型號 131L
- 產地
- 廠商性質 經銷商
- 更新時間 2015/6/7 22:12:35
- 訪問次數(shù) 669
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氯乙烯氣體檢測管131L Vinyl chloride
的詳細介紹
氯乙烯氣體檢測管131L Vinyl chloride
Vinyl chloride 31LCH2:CHCl
Vinyl chloride 31L
CH2:CHCl
| Performance |
| MeasuringRange | 0.1 to 0.2 ppm | 0.2 to 3.0 ppm | 3.0 to 6.6 ppm |
| Number of Pump Strokes | 4 | 2 | 1 |
| CorrectionFactor | 1/2 | 1 | 2.2 |
| SamplingTime | 1.5 minutes per pumpstroke | ||
| DetectingLimit | 0.02 ppm （n=4） | ||
| ColorChange | Yellow → Reddishbrown | ||
| ReactionPrinciple | CH2:CHCl + Cr6+ + H2SO4 → HCl | ||
| Coefficient ofVariation | 10% （for0.2 to 1 ppm）, 5% （for 1 to 4 ppm） | ||
| ShelfLife | 2Years | ||
| Correctionsfor temperature & humidity | Temperature correction is necessary | ||
| Store the tubes inthe refrigerator to keep at 10oC （50oF） orbelow. | |||
| Possible coexisting substances and theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Ethylene | 200 ppm | Minus error | Nodiscoloration |
| Tetrachloroethylene | 1/3 conc. | Plus error | Produce reddishbrown |
| Trichloroethylene | 1/5 conc. | Plus error | Produce reddishbrown |
| Benzene,Toluene | 200 ppm | Minus error | Nodiscoloration |
| Othersubstance measurable with this detector tube |
| Substance | Correction Factor | Pump Strokes | Measuring Range |
| Allylchloride | Factor: 16 | 2 | 3.2 to 48 ppm |
| 1,1,2,2-Tetrachloroethane | Factor: 10 | 2 | 2 to 30ppm |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-S | Explosive range |
| 1ppm | 500ppm | 3.6 to 23% |
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