MIL-P-2447 (SHIPS)
4 .1.1
The inspection requirements shall consist of the following:
Qualification (see 4.2).
Tests (see 4.3). To be conducted in a simulated saltwater sewage source.
(1) Shop tests. To be conducted on each pump supplied under the contract
or order (see 4.3.1).
(2) Performance evaluation tests. To be conducted on one pump of each
design and size on each contract or order (see 4.3.2).
(3) Design evaluation tests. To be conducted on one pump of each design
and size (see 4.3.3).
4.1.2 Inspection system. The supplier shall provide and maintain an inspeciton system
acceptable to the Government--for supplies and services covered by this specification. The
inspection system shall be in accordance with MIL-I-45208 (see 6.1 and 6.2).
4.1.3 When specified (see 6.1), intended use makes it mandatory that the pump shall
be free of all mercury contamination. During the manufacturing process, tests and examina-
tion , the product to be offered for acceptance shall not come in direct contact with mercury
or any of its components nor with any mercury containing device employing a single boundary
of containment. The manufacturer shall certify that the product, when shipped, is free from
mercury contamination.
Tests shall be performed at a laboratory satisfactory to
4.2 Qualification
NAVSEC on each design and size pump for which qualification is desired. Either horizontal
or vertical units may be submitted. The several qualification tests on one pump design may
be conducted concurrently, if practicable. The tests shall fully establish that the product
has the reliability and performance capability specified herein. The following tests shall
be performed:
(a) The performance evaluation tests specified in 4.3.2 through 4.3.2.3.
(b) The design evaluation tests specified in 4.3.3 through 4.3.7.4.
4.2.1 The potential supplier desiring qualification of a specific design and size pump
shall submit design data and calculations, as specified in 3.7 through 3.7.4 to NAVSEC for
review and design acceptance as a prerequisite to the performance of the qualification tests
specified herein. The design record as specified in 3.8 through 3.8.2 shall be submitted
upon completion of the qualification tests.
4.3 Tests. The procuring agency and Government representatives shall have the right
to inspect the test facilities at the suppliers' plants and at the suppliers' subcontractors'
plants, and to witness all tests specified herein. All failures, deficiencies and dis-
crepancies revealed during the performance of the specified tests and the corrective measures
taken shall be recorded and fully documented in the applicable test records and test reports.
After correction of deficiencies, tests shall be repeated to the extent necessary to ascertain
acceptability of the modified pump. Major failures indicative of the design deficiency (as
distinguished from shop error or faulty workmanship) shall be reported to the procuring agency
(Government or shipbuilder), before a correction is made. Except where specifically required
herein to be tested with the actual driver, tests may be conducted using a substitute driver,
provied the actual driver separately passes the tests required by its applicable specifica-
tion.
4.3.1 Shop tests. Shop tests shall be performed on each pump being supplied (and
subcomponents of each pump if applicable). Each shop test shall be fully documented by a
prescribed test procedure and a written record of the performance and findings of each test.
A compilation of the documentation of all the shop tests performed on each pump shall be
furnished in duplicate to the cognizant Government quality assurance office and to the pro-
curing agency (Government or shipbuilder) . The following shop tests shall be performed on
each Dump:
(a) Hydrostatic pressure test (see 4.3.1.1).
(b) Over-speed test (see 4.3.1.2).
(c) Mechanical soundness and capacity test (see 4.3.1.3).
(d) Noise test (to be performed only when specified (see 6.1) (see 4.3.1.4).
Application for Qualification tests shall be made in accordance with `Provisions Governing
Qualification SD-6" (see 6.4 and 6.4.1).
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