UFC 4-390-01
23 July 2003
operates safely as designed. Upon satisfactory completion of
these tests, the applicant should request an on-site
certification survey.
a) Factory acceptance tests (FAT). This category
covers testing performed by an equipment or component
manufacturer to ensure that the material functions in accordance
with specified limits. FATs should be required on all material
where operation is of such a critical nature that failure to
perform within the specified limits would jeopardize the safety
of the operators. Testing of this material at the factory is
usually required in cases where material/component testing is of
such a specialized nature that the unmanned pressure test
facility fabricator may not have the necessary test apparatus.
Acrylic for view ports is an example of material that requires a
FAT.
b) Prototype/first article testing (PFT). This
category of test may be required to prove the design of critical
components or entire systems that are developmental in nature.
Performance of materials, components and systems that are unique
or untried in a similar environment and are within the Scope of
Certification (SOC) must be demonstrated by such tests. PFTs
will often incorporate life cycle testing to verify that a
component or system will operate within design limits and will
not fail prematurely.
c) Pre-installation and Pre-operational tests. Pre-
installation tests (PIT) are those tests that are performed on
components prior to installation in a system (often referred to
as bench tests). Hydrostatic and bench seat tightness testing of
valves are examples of PIT level testing. Pre-operational tests
(POT) are those tests performed at the system level, but prior to
operating the system. Insulation resistance and continuity tests
and mechanical system tightness tests are examples of POT level
testing. These tests should normally be conducted on each system
produced.
d) System operational and system integration tests.
System operational tests (SOT) are required to verify that
separately each subsystem operates satisfactorily within its
design parameters. System integration tests (SIT) are performed
to verify that all subsystems can be operated concurrently, as
designed. SITs are also used to verify that the system operating
procedures can be used to operate the system safely prior to
conducting operational testing.
General Requirements for Test Procedures. The
3.5.2
applicant should submit an index of all FATs, PFTs, PITs, POTs,
SOTs and SITs test procedures to the SCA, indicating those within
the Scope of Certification. The design agent should approve all
SOTs and SITs test procedures. Once the test procedures have
been approved, the test director is authorized to modify them to
41
Previous Page
