GAS2A Carbon Dioxide Gastec Airtec Tubes 250 – 3000ppm

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GAS2A Carbon Dioxide Compressed Breathing Air Detector Tubes – Gastec Airtec Tubes

Used in conjunction with the a1-cbiss Breathing Air Quality Kit, Gastec Airtec Tubes are a convenient and simple system for testing air quality within gas cylinders, compressed breathing air and air lines in compliance with EN12021

When self-contained breathing apparatus are used for respiratory protection, the quality of the breathing air requires special attention.

Contaminants generated by the compressor or cylinder can be harmful to the worker and respiratory equipment.

Shelf Life – a1-cbiss will never dispatch detector tubes with less than 3 months remaining before expiry. a1-cbiss employ a stock rotation policy of first in, first out. Specific shelf life requirements must be identified at the point of order placement (use the comment box in the checkout process). The expiry date is printed clearly on the front of the detector tube packet.

Measuring Range 250 to 3000 ppm
Sampling Rate 100ml/min (500ml)
Correction Factor 1
Sampling Time 5 minutes
Colour Change Orange Yellow         Yellow
Reaction Principle CO2 + 2KOH           K2CO3 + H2O
Coefficient of Variation 10% (for 250 to 1000 ppm), 5% (for 1000 to 3000 ppm)
Shelf Life Up to 2 years from point of manufacture
Corrections for
temperature & humidity
Store the tubes at cool and dark place.
Calibration gas generation High pressure gas cylinder method

Additional Information

Weight 0.1 kg
Multi Gas Tags

Gas Range



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