Gastec 1LK 快速一氧化碳测量探测管CO(5~600ppm)

Indicator: 5 to 100 ppm
Measuring Range: 
+ 5 to 100 ppm, Number of Pump Strokes 3
+ 100 to 300 ppm, Number of Pump Strokes 1
+ 300 to 600 ppm, Number of Pump Strokes 1/2
Sampling Time:  2 minutes per pump stroke
Colour Change: white → Pale brown / Pale green (dual layers) 
Reaction Principle: 5CO + I2O5 + H2S2O7 → I2
Coefficient of Variation: 10% (for 5 to 20 ppm), 5% (for 20 to 100 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
5 to 100 ppm 100 to 300 ppm 300 to 600 ppm
Number of Pump Strokes
3 1 1/2
Correction Factor
1 3 6
Sampling Time 2 minutes per pump stroke
Detecting Limit 0.5 ppm (n=3)
Colour Change white → Pale brown / Pale green (dual layers)
Reaction Principle 5CO + I2O5 + H2S2O7 → I2
Coefficient of Variation 10% (for 5 to 20 ppm), 5% (for 20 to 100 ppm)
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
Hydrogen 10% No
Ammonia   No No
Carbon dioxide   No No
Hydrogen sulphide   No No
Nitrogen oxides   No No
sulphur dioxide   No No
Calibration gas generation High pressure gas cylinder method
TLV-TWA TLV-STEL Explosive range
25 ppm - 12.5 to 74%

 

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