Colorimetric Gas Detector Tubes / Gas Detection Tubes

Colorimetric gas detector tubes for over 350 different gases. AFC supplies tubes from Uniphos, Nextteq and Honeywell by Rae Systems. Uniphos offers both the MSA KwikDraw Tubes (8mm) and 5mm style Uniphos detector tubes. Trade in your old tube pump and purchase 10 boxes of tubes and receive either a KwikDraw Tube Pump or Piston Style Tube Pump. Nextteq offers a pump trade out also, contact AFC for more information.

Quick Links: Choose the letter that corresponds to the chemical you would like to detect with colorimetric gas detector tubes.

KwikDraw (MSA) Gas Detector Tubes:

A | B | C | D | E | F | Gasoline | H | I | Industry Action | J | K | L | M | MultiGas | N | O | P | Q | R | S | Smoke Tubes | T | U | Vinyl Chloride | Water Vapor | Xylene | Y | Z

Nextteq Gas Detector Tubes:

A | Airteq |B | C | Continuous Sampling | D | E | F | Gasoline | H | I | Irritant Smoke |J | Kerosene | L | M | N | O | P | Polytec | Q | R | S | T | U | Verifit Smoke Tube | V | W | Xylene | Y | Z

Rae Systems by Honeywell Tubes

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y |

Uniphos Gas Detector Tubes:

A | B | C | D | E | F | Gasoline | H | I | J | K | L | M | N | O | P | Q | R | S | Smoke | T | UMDH | Vinyl Chloride | Water Vapor | Xylene | Y | Z

Gas detector tubes are designed to reveal the presence of specific gases by changing color when they react with the airborne compound they’re manufactured to detect. Due to the color changing these tubes are sometimes referred to as colorimetric tubes. The glass tubes come sealed at both ends and with a reactive chemical inside. When it’s time to use a gas detector tube, you break off both of its ends and place it in a specially designed gas sampling hand pump. The pump then draws a specific volume of air across the interior of the tube — typically for one to three minutes — where, if the gas in question is present, it will react with the detecting reagent inside the tube. The change in color is measured on a pre-calibrated scale printed on the tube. The color change then proceeds along the length of the tube to indicate the concentration of the gas.

Gas detector tubes are an easy to use, safe and relatively inexpensive way of detecting the concentrations of specific gases. Whether it’s flammable and toxic gases or other pollutants and vapors, the need to quickly detect certain gases — especially in the field without specialized equipment, specially-trained operators or long waits for laboratory analysis— is why gas detector tubes are often the first choice for professionals who are responsible for air quality issues.