Gastec Polytec Detection Tubes

Gastec Polytec Tubes

Gastec Polytec tubes are used to quickly check for the presence of multiple gases and their general concentrations with a single tube. Each of the Polytec tubes can identify and provide a semi-quantitative analysis for 9 to 15 different gases simultaneously, providing a cost effective analysis system for unknown gases.

Each Polytec tube contains 1 to 7 reaction layers that respond to gases and their concentrations. The colors of the different reaction layers respond individually to the gases, allowing the user to determine the presence of a specific gas and either the lower limit of its concentration level or a range.

Polytec Tube Gases and Ranges

Polytec I (1 layer)
Acetone ≥1000 ppm
Acetylene ≥10 ppm
Benzene ≥20 ppm
Carbon Disulphide ≥1 ppm
Carbon Monoxide ≥10 ppm
Ethylene ≥70 ppm
Gasoline ≥100 ppm
Hydrogen Sulphide ≥1 ppm
Propane ≥100 ppm
Propylene ≥100 ppm
Styrene ≥10 ppm
Toulene ≥10 ppm
Trichloroethylene ≥15 ppm
Xylene ≥10 ppm
Polytec II (4 layers)
Ammonia ≥0.5, ≥5 ppm
Carbon Monoxide ≥10 ppm
Chlorine ≥1 ppm
Hydrogen ≥10000 ppm
Hydrogen Chloride ≥5 ppm
Hydrogen Sulphide ≥10 ppm
Olefin HC’s ≥10000 ppm
Mercaptans ≥10 ppm
Nitrogen Dioxide ≥3 ppm
Sulphur Dioxide ≥1, ≥2 ppm
Polytec III (3 layers)
Ammonia ≥0.5, ≥5 ppm
Butane ≥500 ppm
Chlorine ≥1 ppm
Gasoline ≥2, ≥20 ppm
Hydrogen Chloride ≥5 ppm
Hydrogen Sulphide ≥0.5, ≥2 ppm
LPG ≥5000 ppm
Nitrogen Dioxide ≥3 ppm
Sulphur Dioxide ≥2 ppm
Polytec IV (7 layers)
Acetylene ≥200, ≥2000 ppm
Ammonia ≥25, ≥250 ppm
Carbon Dioxide ≥500, ≥20000 ppm
Carbon Monoxide ≥25, ≥100 ppm
Chlorine ≥5, ≥20 ppm, ≥50 ppm
Diethylamine ≥25, ≥150 ppm
Ethylene ≥10000 ppm
Hydrogen ≥50000, ≥100000 ppm
Hydrogen Chloride ≥5, ≥150 ppm
Hydrogen Sulphide ≥10, ≥120, ≥200, ≥800 ppm
Methyl Mercaptan ≥200, ≥1000 ppm
Nitrogen Dioxide ≥5, ≥30 ppm
Phosphine ≥50, ≥700 ppm
Propylene ≥10000, ≥50000 ppm
Sulphur Dioxide ≥10, ≥50 ppm

Gastec Polytec Multiple Gas Detection Tubes

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  • Part Number/Description
  • Price
  • 107Gastec Polytec I multiple gas detection tubes12
  • $75.50
  • 25Gastec Polytec II multiple gas detection tubes13
  • $79.50
  • 26Gastec Polytec III multiple gas detection tubes14
  • $83.50
  • 27Gastec Polytec IV multiple gas detection tubes15
  • $76.50

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