Gastec 12L シアン化水素クイック測定検出器チューブ HCN（0.5〜150ppm）
メーカーGastec(このブランドの他の製品を見る)
Model12L
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安全なチェックアウト
高品質な対応
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Indicator: 2.5 to 60 ppm
Measuring Range:
+ 0.5 to 1.25 ppm, Number of Pump Strokes 5, 45 seconds per pump stroke
+ 1.25 to 2.5 ppm, Number of Pump Strokes 2, 45 seconds per pump stroke
+ 2.5 to 60 ppm, Number of Pump Strokes 1, 45 seconds per pump stroke
+ 60 to150 ppm, Number of Pump Strokes 1/2, 30 seconds
Colour Change: Yellow →Pink
Coefficient of Variation: 10% (for 2.5 to 20 ppm), 5% (for 20 to 60 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 |
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| Detecting Limit | 0.1 ppm (n=5) | ||||
| Colour Change | Yellow →Pink | ||||
| Reaction Principle | Hydrogen cyanide reacts with the reagent to form intermediate material which stains indicator pink. | ||||
| Coefficient of Variation | 10% (for 2.5 to 20 ppm), 5% (for 20 to 60 ppm) | ||||
| Shelf Life | 2 Years | ||||
| Corrections for temperature & humidity | Temperature correction is necessary | ||||
| Store the tubes at cool and dark place. | |||||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Ammonia |  2.5 ppm |
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No discolouration |
| Hydrogen chloride | 5.0 ppm |
+ | Pink at 5.0 ppm |
| Nitric acid | 10.0 ppm |
+ | Pink at 10.0 ppm |
| Sulphur dioxide | 1.0 ppm |
+ | Pink at 0.8 ppm |
| Nitrogen dioxide | 10.0 ppm |
+ | Pink at 8.0 ppm |
| Hydrogen fluoride | 25.0 ppm |
+ | Pink at 21.0 ppm |
| Hydrogen sulphide | 0.5 ppm | + | Pink at 0.5 ppm |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| Acetone cyanohydrine | 1.0 | 1 | 2.5 to 60 ppm |
| Boron trichloride | 0.9 | 1 | 2.25 to 54 ppm |
| Calibration gas generation | Permeation tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| - | C 4.7 ppm (2014) | 5.6 to 40% |
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