Gastec 5M 二氧化硫检知管SO2(20~3600ppm)

Indicator: 100 to 1800 ppm
Measuring Range: 
+ 20 to 100 ppm, Number of Pump Strokes 4
+ 100 to 1800 ppm, Number of Pump Strokes 1
+ 1800 to 3600 ppm, Number of Pump Strokes 1/2
Sampling Time:  45 seconds per pump stroke
Colour Change: Purple → Yellow
Reaction Principle: SO2 + BaCl2 +H2O → BaSO3 + 2HC, HCl+Base → Chloride 
Coefficient of Variation: 10% (100 ~ 600 ppm), 5% (600 ~ 1800 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
20 to 100 ppm 100 to 1800 ppm 1800 to 3600 ppm
Number of Pump Strokes
4 1 1/2
Correction Factor
1/5 1 2
Sampling Time 45 seconds per pump stroke
Detecting Limit 4 ppm (n=4)
Colour Change Purple → Yellow
Reaction Principle SO2 + BaCl2 +H2O → BaSO3 + 2HCl
HCl+Base → Chloride
Coefficient of Variation 10% (for 100 to 600 ppm), 5% (for 600 to 1800 ppm)
Shelf Life 3 Years
Corrections for temperature & humidity Temperature correction is necessary
Store the tubes at cool and dark place.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Carbon monoxide,
Nitric oxide
  No No
Carbon dioxide   No No
Nitrogen dioxide ≧ 1/10 + White ( ≧ 600ppm)
Hydrogen sulphide ≧ 10 times No
Calibration gas generation High pressure gas cylinder method
TLV-TWA TLV-STEL Explosive range
- 0.25 ppm (2014) -

 

  • 质量承诺
  • 正品保修
  • 送货到家
  • 交易简单化