ETL 1110-3-498
24 Feb 99
(4) Filtration System Testing. The filtration system will be field leak tested by an
independent testing agency after installation. The system should also be mechanical leak tested
every 12 months and after replacement of the HEPA filter or adsorber filter. The design must
ensure that adequate filter access is provided.
c. Signage. Doors required to be closed during overpressure will be labeled as such on red
background signage. Doors required to remain open during overpressure will be labeled as such
on green background signage.
d. Training. Training should be conducted for all facility personnel that may be called upon
to operate the CP system.
e. Operating Instructions. Operating instructions and system diagrams for the CP system
will be displayed next to the CP system control panel at eye level. Operating instructions will
describe, in short and concise language, the steps required to operate the CP system. All CP
system control switches and indicators will be clearly marked and identified.
f. Operation and Maintenance Manual. An operation and maintenance manual will be
provided and will contain system operating instructions, emergency operation instructions,
preventive maintenance information, troubleshooting, corrective maintenance, periodic
maintenance recommendations, critical instructions, and a spare parts list.
C-7
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