Gastec 7J ホスフィンクイック測定検出器チューブ PH 3（2.5〜1000 ppm）
メーカーGastec(このブランドの他の製品を見る)
Model7J
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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: 50 to 500 ppm
Measuring Range:
+ 2.5 to 25 ppm, Number of Pump Strokes 2 to 10
+ 25 to 500 ppm , Number of Pump Strokes 1
+ 500 to 1000 ppm, Number of Pump Strokes 1/2
Sampling Time: 1 minutes per pump stroke
Colour Change: White → Pale yellow
Reaction Principle: 2PH3 + 6HgCl2 + 3H2O → Hg3P2 3HgCl23H2O+6HCl
Coefficient of Variation: 10% (for 2.5 to 100 ppm), 5% (for 100 to 500 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 | 1 ppm (n = 10) | |||
| Colour Change | White → Pale yellow | |||
| Reaction Principle | 2PH3 + 6HgCl2 + 3H2O → Hg3P2 3HgCl23H2O+6HCl |
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| Coefficient of Variation | 10% (for 2.5 to 100 ppm), 5% (for 100 to 500 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 |
| Arsine | 1/3 time | + | Brown |
| Hydrogen selenide | 1/5 time | + | Brown |
| Hydrogen sulphide | 1/5 time | + | Dark brown |
| Calibration gas generation | High pressure gas cylinder method |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.3 ppm (2014) | 1 ppm (2014) | - |
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