Gastec 137LA 速い検出チューブクロロホルム CHCl3 (0.5~30ppm)
メーカーGastec(このブランドの他の製品を見る)
Model137LA
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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 to 12 ppm
Measuring Range:
+ 0.5 to 2 ppm, Number of Pump Strokes 4
+ 2 to 12 ppm, Number of Pump Strokes 2
+ 12 to 30 ppm, Number of Pump Strokes 1
Sampling Time: 2 minute per pump stroke
Colour Change: White → Pale purple
Reaction Principle: CHCl3 + I2O5 + H2S2O7 → Cl2, Cl2 + (CH3C10H5NH2)2→ Pale purple products
Coefficient of Variation: 10% (for 2 to 4 ppm), 5% (for 4 to 12 ppm)
Nr. of tests: 5
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 | 2 minutes per pump stroke | |||
| Detecting Limit | 0.2 ppm (n=4) | |||
| Colour Change | White → Pale purple | |||
| Reaction Principle | CHCl3 + I2O5 + H2S2O7 → Cl2 Cl2 + (CH3C10H5NH2)2→ Pale purple products |
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| Coefficient of Variation | 10% (for 2 to 4 ppm), 5% (for 4 to 12 ppm) | |||
| Shelf Life | 1 Year | |||
| Corrections for temperature & humidity | Temperature correction is necessary | |||
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. | ||||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Chlorine | No | No | |
| Bromine | No | No | |
| Iodine | No | No | |
| Unsaturated halogenated HCs | + | Pale purple | |
| Saturated halogenated HCs | + | Pale purple |
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 10 ppm | - | - |
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