Gastec 9L 二酸化窒素クイック測定検出器チューブ NO 2（0.5〜125ppm）
メーカーGastec(このブランドの他の製品を見る)
Model9L
お問い合わせ
安全なチェックアウト
高品質な対応
簡単な交換・返品
配送対応可能
Indicator:
Measuring Range:
+ 0.5 to 30 ppm, Number of Pump Strokes 2
+ 30 to 125 ppm, Number of Pump Strokes 1
Sampling Time: per pump stroke
Colour Change: White → Yellowish Orange
Reaction Principle: NO2 + o-Tolidine → Yellowish orange product
Coefficient of Variation: 10% (for 0.5 to 3 ppm), 5% (for 3 to 30 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Performance
| Measuring Range |
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| Number of Pump Strokes |
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| Correction Factor |
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| Sampling Time | 30 seconds per pump stroke | ||
| Detecting Limit | 0.1 ppm (n=2) | ||
| Colour Change | White → Yellowish Orange | ||
| Reaction Principle | NO2 + o-Tolidine → Yellowish orange product | ||
| Coefficient of Variation | 10% (for 0.5 to 3 ppm), 5% (for 3 to 30 ppm) | ||
| Shelf Life | 3 Years | ||
| Corrections for temperature & humidity | Unnecessary | ||
| Store the tubes at cool and dark place. | |||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Ammonia | No | No | |
| Carbon monoxide | No | No | |
| Carbon dioxide | No | No | |
| Nitric oxide | 50 ppm | Unclear demarcation | Pale red |
| Bromine, Chlorine | 1/5 times | + | Yellowish orange |
| sulphur dioxide | 10 ppm |  (Bleaching) |
No |
| Organic solvents | No | No |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| Iodine | 0.4 | 2 | 0.2 to 12 ppm |
| Calibration gas generation | Permeation tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.2 ppm(2014) | - | - |
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