UFC 4-390-01
23 July 2003
Operator(s)
1. The organization, agency,
or firm having responsibility for the
operation, repair, and maintenance of
the pressure vessel system.
2. The personnel who
physically control the operating
parameters of the pressure vessel
system.
Penetration
The assembly, component shaft
packing gland, seal, or other device
which penetrates the pressure
resistant structure (e.g., pressure
vessel or hard structure).
Pressure vessel
See definition of Unmanned
Pressure Test Facility.
Procedural adequacy
The procedures used in the
operation and maintenance of the
pressure vessel system, suitable and
sufficient to provide for the safety
of the occupants and operators of the
system, before, during, or after any
credible operational or emergency
evolution.
Procedures
Instructions, checklists, and
maintenance guides, prepared in a
manner that provides the occupants and
operators a detailed, safe sequence of
operations of the pressure vessel
system in all of its various normal
and emergency operating modes.
Re-certification
A new certification for system
adequacy of a pressure vessel system
fabricated, assembled, and performance
tested in accordance with acceptable
engineering principles.
Repair
A restoration to the original
condition or replacement that does not
change the original material,
configuration, or performance, using
procedures previously approved.
Replacement-in-kind
Replacement with parts or
components meeting original
specification requirements.
Scope of Certification
A list defining those systems,
(SOC)
subsystems, components, portions of
the pressure vessel system,
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