Description
Gastec P-181-H Permeation Tube Dimethylamine maintaining the integrity of gas detection systems requires a steady reference, and the Gastec P-181-H Permeation Tube Dimethylamine is designed to deliver exactly that. This product works through the principle of molecular diffusion, where the liquefied target gas inside the tube permeates through a specialized membrane at a constant rate when kept at a stable temperature and flow.
By using the Gastec P-181-H Permeation Tube Dimethylamine, facilities can avoid common issues like gas adsorption or concentration decay often found in high-pressure gas containers. This makes it a preferred secondary standard for generating low-concentration gas mixtures. While the standard concentration range is 0.2 – 10.3 ppm, it is important to note that individual tubes may have minor differences in permeation rates, which can lead to slight variations in the actual range that can be controlled.








