Gastec Airtec Tubes

For measuring the quality of compressed breathing air

The Airtec Tube is a convenient, economical system for testing the quality of compressed breathing air. Measurement is quick and simple and does not require user training or calibration. Just snap off both pre-scored ends of the tube, insert the tube into the tube holder with the directional arrow pointing down, and adjust the flowmeter to the specified flow rate. After the required time, note where the colour stain stops and immediately take the measurement from the direct-reading tube.

Tubes are supplied in packs of 10.

A kit for measuring compressed breathing air for impurities is available, using the carbon monoxide, carbon dioxide, water vapour and oil mist Airtec tubes.

ChemicalTube NameMeasuring RangeFlow Rate (mL/min)Sampling Time (min)Part Number
Carbon monoxide

CO
Carbon monoxide Airtec tube5 ppm – 50 ppm1003GST_1A
Carbon dioxide

CO2
Carbon dioxide Airtec tube250 ppm – 3000 ppm1005GST_2A
Carbon dioxide

CO2
Carbon dioxide Airtec tube200 ppm – 3000 ppm1001.5GST_2AG
Water vapour

H2O
Water vapour Airtec tube500 ppm – 5000 ppm3001GST_6AH
Water vapour

H2O
Water vapour Airtec tube20 mg/m3 – 80 mg/m31005GST_6A
Water vapour

H2O
Water vapour Airtec tube150mg/m3 – 3000 mg/m33001GST_6AG
Nitrogen oxides

NO + NO2
Nitrogen oxides Airtec tube0.06 ppm – 2 ppm1002GST_11A
Nitrogen oxides

NO + NO2
Nitrogen oxides Airtec tube0.02 ppm – 0.7 ppm1005
Oil mistOil mist Airtec tube0.2 mg/m3 – 5 mg/m3100020GST_109AD
Oil mistOil mist Airtec tube0.3 mg/m3 – 1.5 mg/m3100060GST_109A