二氧化碳檢測管2D Carbon dioxide CO2，Measuring Range 0.02 to 12% Sampling Hours 0.5 to 10 hours Detecting Limit 0.02 ppm (12 hours) Color Change Pale Red → Yellow Reaction Principle二氧化碳檢測管價格
二氧化碳檢測管2D Carbon dioxide CO2的詳細介紹
二氧化碳檢測管2D Carbon dioxide CO2
Carbon dioxide No.2D
CO2
Performance
Measuring Range
0.02 to 12%
Sampling Hours
0.5 to 10hours
Detecting Limit
0.02 ppm (12hours)
Color Change
Pale Red →Yellow
Reaction Principle
CO2 + 2KOH → K2CO3 + H2O
Coefficient ofVariation 10%(for 0.2 to 8 %-hr)
ShelfLife 2 Year
Correctionsfor
temperature & humidity Temperature correction isnecessary
Store the tubes atcool and dark place.
Possible coexisting substances and theirinterferences (NOTE)
Substance
Concentration
Interference
Change color by itself to
Ammonia
500 ppm
No
No discoloration upto 500ppm
Hydrogenchloride
300 ppm
No
No discoloration upto 300ppm
Chlorine
10 ppm
No
No discoloration upto 5ppm
Hydrogencyanide
50 ppm
No
No discoloration upto 30ppm
Sulfurdioxide
15 ppm
No
No discoloration upto 15ppm
Nitrogendioxide
10 ppm
No
No discoloration upto 10 ppm
Hydrogensulfide
50 ppm
No
No discoloration upto 30 ppm
Calibration gasgeneration Diffusion tubemethod
TLV-TWA TLV-STEL Explosive range
5000 ppm 30000ppm -
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