Certain situations might cause odorant to reduce to an undetectable level, a phenomenon known as odor fade. Physical and chemical processes, such as adsorption, absorption, and oxidation, diminish the concentration of odorant in a gas, causing the odor to fade.
Most odor reduction happens in new pipe installations instead of the old pipe. It is particularly prominent in modern, larger-diameter, longer-length steel pipes. Nevertheless, it can also occur in plastic tubing and more minor and shorter pipe installations. Before new pipeline installations or extensions are implemented, the pipe may require conditioning to avoid odor fading. We have years of experience reviewing the odorant testing process from a litigation perspective.