Nuclear Facility - doe-std-3020-20050007

DOE-STD-3020-2005

perpendicular direction outward from the centerline of the upstream inside side face of the

filter or conversely inward.

Enclosed (Encapsulated) Filters : A filter that is completely enclosed on all sides and

both faces except for reduced end connections or nipples for direct connection into a duct

system.

Nuclear Facility: A reactor or nonreactor nuclear facility where an activity is conducted for

or on behalf of DOE and includes any related area, structure, facility, or activity to the extent

necessary to ensure proper implementation of the requirements established by 10 CFR 830.

Penetration: The downstream test aerosol concentration, expressed as a percentage of the

upstream test aerosol concentration.

Qualification Test: A test, often destructive, of a prototype or randomly selected production

filter to establish its capability to meet certain functional and specification requirements. The

results of the test are considered to typify individual items or model numbers which are of the

same design and are manufactured by the same process.

Rated Airflow: The designated airflow capacity of a HEPA filter in ACFM.