Gastec 1L 快速一氧化碳检测管CO(2.2~2000ppm)

Indicator: 50~1000ppm
Measuring Range: 
+ 2.5 to 25 ppm, Number of Pump Strokes 2 to 10
+ 25 to 1000 ppm, Number of Pump Strokes 1
+ 1000 to 2000 ppm, Number of Pump Strokes 1/2
Sampling Time: 1 minutes per pump stroke
Colour Change: Yellow → Blackish brown
Reaction Principle: CO + Na2Pd(SO3)2 → Pd + CO2 + SO2+Na2SO3
Coefficient of Variation: 0% ( 25 ~ 300 ppm), 5% ( 300 ~ 1000 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Manual tube

Performance
Measuring Range
2.5 to 25 ppm 25 to 1000 ppm 1000 to 2000 ppm
Number of Pump Strokes
2 to 10 1 1/2
Correction Factor
1/2 to 1/10 1 2
Sampling Time 1 minute per pump stroke
Detecting Limit 1 ppm (n=10)
Colour Change Yellow → Blackish brown
Reaction Principle CO + Na2Pd(SO3)2 → Pd + CO2 + SO2+Na2SO3
Coefficient of Variation 10% (for 25 to 300 ppm), 5% (for 300 to 1000 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
Acetylene 1/50 time + Dark brown
Ethylene 2000 ppm No Brown (whole layer)
Hydrogen 5000 ppm + Dark brown (whole layer)(1%)
sulphur dioxide 1/10 time + Dark brown
Nitrogen dioxide 40 ppm + Red (60 ppm)
Carbon disulphide 1/50 time + Dark brown
Halogens 1/5 time + Dark brown
Mercaptans 1/5 time + Dark brown
Hydrogen sulphide 1/5 time + Dark brown
Calibration gas generation High pressure gas cylinder method
TLV-TWA TLV-STEL Explosive range
25 ppm (2014) - 12.5 to 74%

 

  • 质量承诺
  • 正品保修
  • 送货到家
  • 交易简单化