Description
Gastec P-74-H Permeation Tube Dimethyl Sulphide utilizes advanced membrane technology to provide a reliable method for generating calibration gas mixtures. Inside the tube, the target substance is kept in a liquefied state; when maintained at a constant temperature, the gas permeates through the tube walls at a highly predictable and constant rate.
This method is highly valued in industrial instrumentation because it eliminates common issues such as gas adsorption or concentration decay often found in high-pressure containers. By integrating the Gastec P-181-H into a compatible gas generation system, engineers can achieve the precise ppm levels necessary for strict safety audits and environmental monitoring. It is important to note that while the standard concentration range is 0.04 to 6.3 ppm, individual tubes may exhibit minor variations in permeation rates, allowing for specific fine-tuning of the actual controllable range for each unit.
