
Gastec 126 Quick-measuring Detector tubes Chlorobenzene C6H5Cl (2~500ppm)
Manufacturer: Gastec Model: 126 - Contact
See more: Equipment Calibration-Inspection & Repair Service
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Indicator: 10 to 200 ppm
Measuring Range:
+ 2 to 5 ppm, Number of Pump Strokes 2
+ 5 to 200 ppm, Number of Pump Strokes 1
+ 200 to 500 ppm, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: White → Gray
Reaction Principle: C6H5Cl+ I2O5 + H2S2O7 → I2
Coefficient of Variation: 15% (for 5 to 50 ppm), 10% (for 50 to 200 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
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 | 0.2 ppm (n=2) | |||
Colour Change | White → Gray | |||
Reaction Principle | C6H5Cl+ I2O5 + H2S2O7 → I2 | |||
Coefficient of Variation | 15% (for 5 to 50 ppm), 10% (for 50 to 200 ppm) | |||
Shelf Life | 3 Years | |||
Corrections for temperature & humidity | Unnecessary | |||
Store the tubes at cool and dark place. |
Substance | Concentration | Interference | Change colour by itself to |
Carbon monoxide | ![]() |
No (2 layers) | Pale brown (whole layer) |
Acetylene, Hexane, Ethylene | ![]() |
No (2 layers) | Pale brown (whole layer) |
Alcohols, Ketones | ![]() |
+ | No |
Esters | ![]() |
+ | No |
Aromatic hydrocarbons | + | Gray |
Calibration gas generation | Diffusion tube method |
TLV-TWA | TLV-STEL | Explosive range |
10 ppm(2014) | - | 1.3 to 9.6% |
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