产品展示
氟化氢气体检测管17
点击次数：241发布时间：2012/3/20 11:12:40
更新日期：2012/9/21 14:20:27
所 在 地：其它
产品型号：17
相关标签：
优质供应
详细内容
简单介绍
氟化氢气体检测管17 Hydrogen fluoride，Measuring Range 0.25 to 0.5ppm 0.5 to 20 ppm 20 to 100 ppm Number of Pump Strokes 7 4 1 Correction Factor 1/2 1 5 Sampling
氟化氢气体检测管17 Hydrogen fluoride
的详细介绍氟化氢气体检测管17 Hydrogen fluoride
Hydrogen fluoride No.17
HF
| Performance |
| MeasuringRange | 0.25to 0.5ppm | 0.5 to 20 ppm | 20 to 100 ppm |
| Number of Pump Strokes | 7 | 4 | 1 |
| CorrectionFactor | 1/2 | 1 | 5 |
| SamplingTime | 45 seconds per pumpstroke | ||
| DetectingLimit | 0.1ppm （n=7） | ||
| ColorChange | Yellow → BrownishPink | ||
| ReactionPrinciple | Hydrogen fluoridereacts with indicator to produce brownish pink colour. | ||
| Coefficient ofVariation | 10% （for 0.5 to 5ppm）, 5% （for 5 to 20 ppm） | ||
| ShelfLife | 3Years | ||
| Correctionsfor temperature & humidity | Humidity correction is necessary | ||
| Store the tubes at cool ａnd darkplace. | |||
| Possible coexisting substances ａnd theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Hydrogen chloride,Nitric acid | 1/5 time | Plus error | brownish pinkstain |
| Chlorine, Nitrogendioxide | 1/10 time | Plus error | brownish pinkstain |
| Othersubstance measurable with this detector tube |
| Substance | CorrectionFactor | PumpStroke | Temperature | AbsoluteHumidity | ColorChange |
| Fluorine | 2.5 | 1 | 20oC（68oF） | 9 mg/l | Produces brownstain |
| 1.0 | 1 | 20oC（68oF） | 3mg/l |
| Calibration gasgeneration | Permeation tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| - | C3ppm | - |
