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Gastec Polytec Tubes


Polytec tubes are used in situations where it is unknown which hazardous gases are present. The Polytec tubes take a number of measurements to determine present hazardous substances.

The Polytec tubes are commonly used by firefighting HazMat teams or occupational hygienists going into a situation where they need to quickly establish which gases they are faced with, take a quick reading then use the correct gas detection equipment.

The Gastec Polytec system consists of the Model GV-100S Gas sampling pump and the Polytec tubes.

The Gastec 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), Polytec V (No.28) and Qualitative tubes for fire investigation (No.108). Detailed descriptions are given in the instruction sheets included with individual Polytec tubes.

Gastec Polytec Tubes


Tubes Guide
Tube List

Ordering Information


GAS25 Polytec II Tubes
GAS26 Gastec Polytec III Tubes
GAS27 Gastec Polytec IV Tubes
GAS28 Gastec Polytec V Tubes
GAS107 Polytec I Tubes
GAS108 Qualitative Gastec Polytec Detector Tube for Fire Investigation



Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

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