Ethyl ether

NO.161L
(C2H5)2O
Performance
Measuring Range
10 to 400 ppm 400 to 1200 ppm
Number of Pump Strokes
2 1
Correction Factor
1 3
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.
Possible coexisting substances and their interferences (NOTE)
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%


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