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Gastec 152 Quick-measuring Detector tubes Methyl ethyl ketone CH3COC2H5 (0.02 ~ 0.6%)

Indicator: 0.02 ~ 0.6%
Measuring Range: 0.02 ~ 0.6%, Number of Pump Strokes 2
Sampling Time: 1.5 minute per pump stroke
Colour Change: Orange → Dark green
Reaction Principle: CH3COC2H5 + Cr6+ + H2SO4 + → Cr3+
Coefficient of Variation: 10% (for 0.02 to 0.2 %), 5% (for 0.2 to 0.6 %)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Catalog

Manual

Performance
Measuring Range 0.02 to 0.6%
Number of Pump Strokes 2
Correction Factor 1
Sampling Time 1.5 minutes per pump stroke
Detecting Limit 0.002% (n=2)
Colour Change Orange → Dark green
Reaction Principle CH3COC2H5 + Cr6+ + H2SO4 + → Cr3+
Coefficient of Variation 10% (for 0.02 to 0.2 %), 5% (for 0.2 to 0.6 %)
Shelf Life 3 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
sulphur dioxide 500 ppm + Green(500 ppm)
Hydrogen sulphide 500 ppm + Dark green(500 ppm)
Alcohols, Esters, Ketones   + Dark green
Propane 0.2% Yes Dark green (whole layer)(0.2%)
Aromatic HCs. 500 ppm + Dark green(500 ppm)
Calibration gas generation Static gas dilution method
TLV-TWA TLV-STEL Explosive range
200 ppm (2014) 300 ppm (2014) 1.7 to 11.4%

 

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