Avoiding Dilution and Agglomeration Errors in PSL Filter Leak Testing
An unexpected particle spike during a downstream HEPA scan rarely points to damaged filter media or loose frame gaskets. More often, the failure originates in the fluid reservoir long before the aerosol reaches the ductwork. When standard concentrate bottles are diluted into poor-quality feed water or subjected to high-shear agitation, uniform microspheres bind into dense […]
