Lab Filtration glossary
Upstream
Before the filter positioned in the system.
FAQ Upstream is before the filter positioned in the system. Beta ratio: A 5-micron filter with a beta 10 rating, is expected to have an average of 10 particles greater than 5 microns upstream of a filter for each one particle, five microns or more downstream.
Upstream is before the filter positioned in the system.
Beta ratio: A 5-micron filter with a beta 10 rating, is expected to have an average of 10 particles greater than 5 microns upstream of a filter for each one particle, five microns or more downstream.