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Gastec Polytec System

The Gastec Polytec system consists of the Model GV-110S gas sampling pump and the Polytec tubes. The Polytec tubes are unique detector tubes, each having 1 to 8 reaction layers to determine multiple unknown substances in the sample simultaneously.

When you pull the handle of the pump and wait for a predetermined sampling time, the colour(s) of the Polytec tube’s layer(s) change uniquely according to the contents of the sample.

Five types of Polytec tubes are available:

  1. Polytec I (No.107),
  2. Polytec II (No.25),
  3. Polytec III (No.26),
  4. Polytec IV (No.27), and
  5. Polytec V (No.28)

Detailed descriptions are given in the instruction sheets included with individual Polytec tubes. If you already have the Model GV-110S gas sampling pump, you need only to obtain the desired Polytec tubes.

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Gastec Polytec System

The table below details which substances each Gastec Polytec Tube is designed to measure.

Polytec Tube
Substance
Polytec I
Polytec II
Polytec III
Polytec IV
Polytec V
No. 107
No. 25
No. 26
No. 27
No. 28
Acetone
Acetylene
Ammonia
Benzene
Butane
Carbon Dioxide
Carbon Disulphide
Carbon Monoxide
Chlorine
Diethylamine
Ethylene
Gasoline
Hydrogen
Hydrogen Chloride
Hydrogen Cyanide
Hydrogen Phosphide
Hydrogen Sulphide
LPG (Liquefied Petroleum Gas)
Mercaptans
Methyl Mercaptan
Nitrogen Dioxide
Olefin HCs
Phosgene
Phosphine
Propane
Propylene
Styrene
Sulphur Dioxide
Toluene
Trichloroethylene
Xylene

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