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11S 氮氧化物检测管
点击次数：319发布时间：2012/3/20 10:25:58
更新日期：2012/9/21 14:20:45
所 在 地：其它
产品型号：11S
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简单介绍
11S 氮氧化物检测管 Nitrogen oxides，11S氮氧化物快速检测管 Nitrogen oxides NO+NO2，Measuring Range 5 to 10 ppm 10 to 250 ppm 250 to 625ppm，一氧化碳、氨气、、二氧化氮、二氧化硫、甲醛、硫酸二甲酯、氟化氢、硫化氢、氯化氢、、汞蒸气、苯、甲苯、二甲苯、甲醇、乙醇、乙烯、乙炔、、汽油、光气
11S 氮氧化物检测管 Nitrogen oxides
的详细介绍11S 氮氧化物检测管 Nitrogen oxides
Nitrogen oxides No.11S
NO+NO2
| Performance |
| Measuring Range | 5 to 10 ppm | 10 to 250 ppm | 250 to 625 ppm |
| Number of PumpStrokes | 2 | 1 | 1/2 |
| CorrectionFactor | 1/2 | 1 | 2.5 |
| Sampling Time | 1 minute per pumpstroke | ||
| Detecting Limit | 2 ppm （n=2） | ||
| Color Change | White → Palegreen | ||
| Reaction Principle | NO + Cr6++ H2SO4→NO2 | ||
| Coefficient ofVariation | 10% （for 10 to 40ppm）, 5% （for 40 to 250 ppm） | ||
| ShelfLife | 2Years | ||
| Correctionsfor temperature & humidity | Unnecessary | ||
| Store the tubes at cool ａnd darkplace. | |||
| Possible coexisting substances ａnd theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Hydrogenchloride | 50 ppm | Faintdemarcation | Produce Bluishpurple |
| Ozone | 80 ppm | Faintdemarcation | Pale brown |
| Sulfur dioxide, | 1/1 | Plus error | Nodiscoloration |
| Methanol | 400 ppm | Minus error | Nodiscoloration |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | NO2:Permeation tube method NO:High pressure gas cylinder method | |
| TLV-TWA | TLV-STEL | Explosive range |
| NO2:3ppm NO:25ppm | NO2:5ppm | - |
