Gastec 72 快速乙硫醇测量探测管C2H5SH(0.5-120ppm)

Indicator: 5 to 120 ppm
Measuring Range: 
+ 0.5 to 5 ppm, Number of Pump Strokes 2 to 10
+ 5 to 120 ppm, Number of Pump Strokes 1
Sampling Time: 2 minute per pump stroke
Colour Change: White → Yellow
Reaction Principle: 2C2H5SH + PdSO4 → (C2H5S)2Pd+ H2SO4
Coefficient of Variation: 10% (for 5 to 40 ppm), 5% (for 40 to 120 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Manual tube

Performance
Measuring Range
0.5 to 5 ppm 5 to 120 ppm
Number of Pump Strokes
2 to 10 1
Correction Factor
1/2 to 1/10 1
Sampling Time 2 minutes per pump stroke
Detecting Limit 0.2 ppm (n=10)
Colour Change White → Yellow
Reaction Principle 2C2H5SH + PdSO4 → (C2H5S)2Pd+ H2SO4
Coefficient of Variation 10% (for 5 to 40 ppm), 5% (for 40 to 120 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
Acetylene, Ethylene 2000 ppm + Pale brown (whole layer)
Carbon Monoxide 2000 ppm + Pale brown (whole layer)
Other Mercaptans   + Yellow
Hydrogen sulphide 500 ppm + No
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
0.5 ppm(2014) - 2.8 to 18.2%
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