Catalyst Activity Value Testing Service (AVTS™)

Chemical washing of catalysts (sometimes known as catalyst washing) is a proven method of extending the lifespan of a catalyst. However, there are circumstances where washing cannot restore sufficient activity to bring an engine into compliance. The AVTS™ is a non-destructive test that isolates a portion of the catalyst and creates stable, repeatable conditions where the coating should respond to a standardized reference compound being passed through the cells. Several sections of a catalyst element are evaluated to determine a picture of the overall condition of the catalyst. The data gathered during the process is used to calculate the Activity Value Index (AVI ™) which is a simple, numerical score of the catalyst element’s health.