Gastec 13 快速二硫化碳测量探测管CS2(0.63~100ppm)

Indicator: 5 to 50 ppm
Measuring Range: 
+ 0.63 to 1.25 ppm, Number of Pump Strokes 4
+ 1.25 to 2.5 ppm, Number of Pump Strokes 2
+ 2.5 to 50 ppm, Number of Pump Strokes 1
+ 50 to 100 ppm, Number of Pump Strokes 1/2
Sampling Time: 3 minutes per pump stroke
Colour Change: Blue → Yellow
Reaction Principle: 
+ CS2 + CrO3 + H2S2O7 → SO2 + CO2;
+ SO2 + BaCl2 + H2O → BaSO3 + 2HCl;
+ HCl + Base → Chlorides
Coefficient of Variation: 10% (for 2.5 to 10 ppm), 5% (for 10 to 50 ppm)
Nr. of tests: 5
Pump: GV-100S/110S

Detail

Catalog

Manual

Manual tube

Performance
Measuring Range
0.63 to 1.25 ppm 1.25 to 2.5 ppm 2.5 to 50 ppm 50 to 100 ppm
Number of Pump Strokes
4 2 1 1/2
Correction Factor
1/4 1/2 1 2
Sampling Time 3 minutes per pump stroke
Detecting Limit 0.3 ppm (n=4)
Colour Change Blue → Yellow
Reaction Principle CS2 + CrO3 + H2S2O7 → SO2 + CO2
SO2 + BaCl2 + H2O → BaSO3 + 2HCl
HCl + Base → Chlorides
Coefficient of Variation 10% (for 2.5 to 10 ppm), 5% (for 10 to 50 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
Ammonia   No No
Hydrogen cyanide 200 ppm No No
sulphur dioxide 1/ 5 time + Yellow
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
1 ppm (2014) - 1.3 to 50%
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