Gastec 1H 快速一氧化碳检测管CO(0.1~10%)

Indicator: 0.2 ~5.0%
Measuring Range: 
+ 0.1 ~ 0.2%, Number of Pump Strokes 2
+ 0.2 ~ 5.0%, Number of Pump Strokes 1
+ 5.0 ~10.0%, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: White → Blackish brown
Reaction Principle: 5CO + I2O5 + H2S2O7 → I2
Coefficient of Variation: 10% (for 0.2 to 1.0 %), 5% (for 1.0 to 5.0 %)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Manual tube

Performance
Measuring Range
0.1 to 0.2% 0.2 to 5.0% 5.0 to10.0%
Number of Pump Strokes
2 1 1/2
Correction Factor
1/2 1 2
Sampling Time 45 seconds per pump stroke
Detecting Limit 0.02% (n=2)
Colour Change White → Blackish brown
Reaction Principle 5CO + I2O5 + H2S2O7 → I2
Coefficient of Variation 10% (for 0.2 to 1.0 %), 5% (for 1.0 to 5.0 %)
Shelf Life 3 Years
Corrections for temperature & humidity Unnecessary
Store the tubes at cool and dark place.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Acetylene 0.3% + Blackish brown
Olefins 2/3 time + Brown
Butane 1% + Pale brown (whole layer)
Propane 20% + No
Hexane 0.3% + Pale brown (whole layer)
Calibration gas generation High pressure gas cylinder method
TLV-TWA TLV-STEL Explosive range
25 ppm - 12.5 to 74%

 

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