Description
Gastec P-91-H-5 Permeation Tube Formaldehyde Maintaining the integrity of gas detection systems requires a steady and traceable source of test gas. The Gastec P-91-H-5 Permeation Tube Formaldehyde achieves this by utilizing advanced permeation technology to release a controlled amount of Formaldehyde vapor. Unlike traditional gas cylinders that can suffer from concentration decay or adsorption, this permeation tube offers a constant mass flow rate when maintained at a stable temperature and flow.
This method is essential for low-concentration applications where precision is paramount. Because individual permeation tubes may have unique characteristics in their diffusion rates, each unit is calibrated to ensure high-fidelity performance. This reliability makes the Gastec P-91-H-5 a superior choice for secondary standard testing and long-term calibration stability in various technical environments.








