Gastec 17LL 速く検出チューブ化水素HF（0.05〜24ppm）
メーカーGastec(このブランドの他の製品を見る)
Model17LL
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Indicator: 0.1~3.0ppm
Measuring Range:
+ 0.05 to 3.0 ppm, Number of Pump Strokes 5
+ 3.0 to 6.9 ppm, Number of Pump Strokes 3
+ 6.9 to 24 ppm, Number of Pump Strokes 1
Sampling Time: 1 minute per pump stroke
Colour Change: Yellow → Brown
Coefficient of Variation: 10% (for 0.05 to 1.0 ppm), 5% (for 1.0 to 3.0 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 | 1 minute per pump stroke | |||
| Detecting Limit | 0.025 ppm (n=5) | |||
| Colour Change | Yellow → Brown | |||
| Reaction Principle | Hydrogen fluoride reacts with indicator to produce brown stain. | |||
| Coefficient of Variation | 10% (for 0.05 to 1.0 ppm), 5% (for 1.0 to 3.0 ppm) | |||
| Shelf Life | 2 Years | |||
| Corrections for temperature & humidity | Temperature correction is necessary Humidity correction is necessary |
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| Store the tubes at cool and dark place. | ||||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Nitric acid |  1.0ppm |
+ | Pale reddish violet |
| Hydrogen chloride | 0.1ppm |
+ | Reddish violet |
| Hydrogen peroxide | 10ppm | No | No |
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