Gastec 161L 便携式气体检测管乙醚检测管(C2H5)2O(10~1200ppm)

Indicator: 10 to 400 ppm
Measuring Range: 
+ 10 to 400 ppm, Number of Pump Strokes 2
+ 400 to 1200 ppm, Number of Pump Strokes 1
Sampling Time: 2 minute per pump stroke
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)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
10 to 400 ppm 400 to 1200 ppm
Number of Pump Strokes
2 1
Correction Factor
1 3
Sampling Time 2 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   + Pale blue
Esters   + Pale blue
Ketones   + Pale blue
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
400 ppm(2014) 500 ppm(2014) 1.9 to 36%
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