Definitions - Continued

DOE-STD-3020-97

Nominal Air Flow Rating

The flow rate at which HEPA filters are identified by the manufacturer and

confirmed at the FTF. Nominal air flow ratings for various size filters are

listed in section 5.2.2, Table 1 of this standard.

Nuclear Facility

A DOE-owned and operated reactor or non-reactor facility in which

radioactive materials are produced or handled to the degree that

environmental protection is required.

Penetration

The downstream test aerosol concentration, expressed as a percentage of

the upstream test aerosol concentration.

Preparing Activity

The DOE organization responsible for issue and interpretation of this

standard.

Qualification Test

A test, often destructive, of a prototype or randomly selected production filter

to establish its capability to meet certain functional and specification require-

ments. 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.