What are Draeger tubes used for?
Draeger Tubes are colorimetric gas detection tubes that are used to identify and detect different toxic and harmful gases. Every Draeger Tube is a glass vial that is filled with a chemical reagent, that will react with a specific chemical or type of chemical family.
What does a Draeger tube contain?
Draeger tubes contain a chemical color reagent that transforms colorless chemical compounds into colored, and produce consistent results of absorption depending upon the concentration of the compounds they are subjected to. In fact, using Draeger tubes is often easier than describing how they work.
How long are Draeger tubes good for?
2 years
Draeger Tubes have a shelf life of 2 years. To see your Draeger tubes expiration date, check the box your tubes were shipped in, because the expiration dates are stamped on the sides of the boxes when they are shipping out. The Natural Gas Draeger Tube is the only exception to the two year shelf life rule.
How do you use a colorimetric tube?
They’re used with hand pumps that draw a sample of air into the tube. The tubes are sealed at both ends when they come out of the package. When it’s time to sample, the end of the tube is broken off, and the tube is inserted into the pump.
How accurate are Draeger tubes?
Compared against less stringent accuracy criteria of +/- 35 percent, all Photovac GC results were acceptable but about 40 percent of Drager CMS results were not.
How do you read a Drager tube?
For this reason, testing tubes should normally be read directly after measuring. Look at the tube against a bright, neutral-colored background during reading, such as against a piece of white paper. If you are measuring in the dark, place the tube on the reflector of a lit flashlight.
How do you dispose of a Draeger tube?
Disposal – After you’ve used Dräger-Tubes, they become chemical waste, so don’t just toss them into the trash. Consult Dräger Safety for local, state and federal regulations on storing and disposing of the chemicals in the tubes’ reagents (there are 15 of them).
What does a colorimetric tube do?
Colorimetric tube technology has been used for many years to sample for specific gases in a specific area, such as a hazardous leak in an industrial setting. A chemical reagent changes colors to indicate the existence of hazardous vapors. A volume of gas is drawn into the tube via an accompanying pump.
How does a colorimetric CO2 detector work?
Colorimetric CO2 detectors visually indicate the presence of exhaled carbon dioxide. Exhaled gases pass through the chemically treated, pH sensitive paper changing its colour from purple to yellow in a semi-quantitative measure of % ETCO2.
How do you read a Draeger tube?
How do you break a Draeger tube?
The first is to open up the tube. This must be done by breaking off the tips at either end and the casing can help with this. Insert the tube into the slit with the jagged edge. Running the tube up and down the jagged edge will help to weaken the glass and then it should simple enough for the tip to snap off.
What can be measured with a Drager Tube?
Very complex mixtures of substances or cases in which several similar substances are present at the same time can be measured accurately with Dräger Tubes. Dräger-Tubes can be used to measure a large number of different substances.
What is the purpose of Drager diffusion tubes?
The Dräger Diffusion Tubes are direct reading systems used for the determination of time weighted average concentrations over the duration of one to eight hours. The Dräger Flow Check air current indicator produces a harmless cloud of smoke that floats freely and easily, because it has the same density as ambient air.
Can a Drager pump be used with a short term tube?
Furthermore, the easy-to-use Dräger-Tubes have already been calibrated and form a complementary unit with the Dräger-Tube pumps. The Short-term Tubes are used either manually with the Dräger-Tube pump accuro or automatically with the Dräger X-act 5000.