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:
- Polytec I (No.107),
- Polytec II (No.25),
- Polytec III (No.26),
- Polytec IV (No.27), and
- 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.
The table below details which substances each Gastec Polytec Tube is designed to measure.
| 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 | |||||