Ethyl ether |
NO.161L |
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Measuring Range |
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Number of Pump Strokes |
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Correction Factor |
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Sampling Time | 4 minutes per pump stroke | ||
Detecting Limit | 2 ppm (n=2) | ||
Colour Change | Yellow → Pale blue | ||
Reaction Principle | (C2H5)2O+ Cr6+ + H2SO4 → Cr3+ | ||
Coefficient of Variation | 10% (for 10 to 100 ppm), 5% (for 100 to 400 ppm) | ||
Shelf Life | 2 Years | ||
Corrections for temperature & humidity | Temperature correction is necessary | ||
Store the tubes at cool and dark place. |
Substance | Concentration | Interference | Change colour by itself to |
Alcohols td> | + | Pale blue | |
Esters | + | Pale blue | |
Ketones | + | Pale blue |
Calibration gas generation | Diffusion tube method |
TLV-TWA | TLV-STEL | Explosive range |
400 ppm | 500 ppm | 1.9 to 4 8% |