Gastec 2H 二氧化碳检测管CO2(0.5-20%)

Indicator: 1 ~ 10%
Measuring Range: 
+ 0.5 to 1%, Number of Pump Strokes 2
+ 1 to 10%, Number of Pump Strokes 1
+ 10 to 20%, Number of Pump Strokes 1/2
Sampling Time:  45 seconds per pump stroke
Colour Change: White → Purple
Reaction Principle: CO2 + N2H4 → NH2NHCOOH
Coefficient of Variation: 10% (for 1 to 3 %), 5% (for 3 to 10 %)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Manual tubes

Performance
Measuring Range
0.5 to 1% 1 to 10% 10 to 20%
Number of Pump Strokes
2 1 1/2
Correction Factor
1/2 1 2
Sampling Time 45 seconds per pump stroke
Detecting Limit 0.1% (n=2)
Colour Change White → Purple
Reaction Principle CO2 + N2H4 → NH2NHCOOH
Coefficient of Variation 10% (for 1 to 3 %), 5% (for 3 to 10 %)
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
Ammonia   No No
Carbon Monoxide   No No
Chlorine   No No
Hydrogen sulphide   No No
Hydrogen chloride   No No
Nitrogen oxides   No No
sulphur dioxide   No No
Amines   No No
Organic solvents   No No
Calibration gas generation High pressure gas cylinder method
TLV-TWA TLV-STEL Explosive range
5000 ppm(2014) 30000 ppm(2014) -

 

  • 质量承诺
  • 正品保修
  • 送货到家
  • 交易简单化