Gastec 174 快速1,3-丁二烯检测检测管 CH2:CHCH:CH2(50~800 ppm)

Indicator: 50 ~ 800 ppm
Measuring Range: 50 ~ 800 ppm, Number of Pump Strokes 1
Sampling Time:  per pump stroke
Colour Change: 
Reaction Principle: 
Coefficient of Variation: 
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range 50 to 800 ppm
Number of Pump Strokes 1
Correction Factor 1
Sampling Time 1.5 minutes per pump stroke
Detecting Limit 10 ppm (n=1)
Colour Change Pale yellow → White
Reaction Principle

CH2:CHCH:CH2 + (NH4)2MoO4 + PdSO4 → White product

Coefficient of Variation 10% (for 50 to 200 ppm), 5% (for 200 to 800 ppm)
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
Acetylene, Carbon monoxide 10 ppm + Blue
Ammonia, Hydrogen cyanide   + White
Hydrogen 20% + Blue (whole layer)
Hydrogen sulphide 10 ppm + Black
Ethylene 1 ppm + Blue
Styrene   + Pale blue
Other substance measurable with this detector tube
Substance Correction Factor No. of pump strokes Measuring Range
1,3-Pentadiene 5.0 1 250 to 4000 ppm
Calibration gas generation Static gas dilution method
TLV-TWA TLV-STEL Explosive range
2 ppm(2014) - 2.0 to 12%
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