Gastec 103 快速碳氢化合物检测管C2~C7(0.05-2.4%)

Indicator: 0.1 to 1.2%
Measuring Range: 
+ 0.05 to 0.1%, Number of Pump Strokes 2
+ 0.1 to 1.2%, Number of Pump Strokes 1
+ 1.2 to 2.4%, Number of Pump Strokes 1/2
Sampling Time: 2 minute per pump stroke
Colour Change: Yellowish brown → Greenish brown
Reaction Principle: Hydorocarbon (C2 + C7) + Cr6+ + H2S2O7 → Cr3+
Coefficient of Variation: 10% (0.1 ~ 1.2 %)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Manual tube

Performance
Measuring Range
0.05 to 0.1% 0.1 to 1.2% 1.2 to 2.4%
Number of Pump Strokes
2 1 1/2
Correction Factor
1/2 1 2
Sampling Time 2 minutes per pump stroke
Detecting Limit 0.01% (n=2)
Colour Change Yellowish brown → Greenish brown
Reaction Principle Hydorocarbon (C2 + C7) + Cr6+ + H2S2O7 → Cr3+
Coefficient of Variation 10% (for 0.1 to 1.2 %)
Shelf Life 2 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
Methane, Ethane   No No
Organic solvents   + Greenish brown
Other substance measurable with this detector tube
Substance Correction Factor No. of pump strokes Measuring Range
Acetylene 1.5 1/2, 1, 2 0.075 to 3.6%
Butane, Heptane, Isobutane 0.7 1/2, 1, 2 0.035 to 1.68%
Ethylene 7.0 1/2, 1, 2 0.35 to 16.8%
Hexane 0.5 1/2, 1, 2 0.025 to 1.2%
Isopentane 0.9 1/2, 1, 2 0.045 to 2.16%
Pentane 0.75 1/2, 1, 2 0.0375 to 1.8%
Propane 1.0 1/2, 1, 2 0.05 to 2.4%
Calibration gas generation High pressure gas cylinder method
TLV-TWA TLV-STEL Explosive range
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