Gastec 71H 快速甲硫醇测量探测管 CH3SH (1000-2700 ppm)

Indicator: 20~1000ppm
Measuring Range: 
+ 20 to 50 ppm, Number of Pump Strokes 2
+ 50 to 1000 ppm, Number of Pump Strokes 1
+ 1000 to 2700 ppm, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: 1000 to 2700 ppm
Reaction Principle: 2CH3SH + PdSO4 → (CH3S)2Pd + H2SO4
Coefficient of Variation: 10% (for 50 to 200 ppm), 5% (for 200 to 1000 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
20 to 50 ppm 50 to 1000 ppm 1000 to 2700 ppm
Number of Pump Strokes
2 1 1/2
Correction Factor
0.4 1 2.7
Sampling Time 45 seconds per pump stroke
Detecting Limit 2 ppm (n=2)
Colour Change White → Yellow
Reaction Principle 2CH3SH + PdSO4 → (CH3S)2Pd + H2SO4
Coefficient of Variation 10% (for 50 to 200 ppm), 5% (for 200 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
Carbon monoxide   No No
Nitrogen dioxide   No No
Hydrogen sulphide 1000 ppm + No
Ethylene   No No
Mercaptans   + Yellow
Other substance measurable with this detector tube
Substance Correction Factor No. of pump strokes Measuring Range
Ethyl mercaptan by scale 1 100 to 3800 ppm
Calibration gas generation Static gas dilution method
TLV-TWA TLV-STEL Explosive range
0.5 ppm - 3.9 to 21.8%
  • 质量承诺
  • 正品保修
  • 送货到家
  • 交易简单化