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|  MIL-F-20627B
5.1.1.2 Fiber elements. - Elements shall be
assembled in a filter case which has been modified
individually packaged in accordance with method
as shown on figure 5 to Permit measurement of pres-
IA-13 of MIL-P-116. Contact preservative will
sure drop across the element(s) only. A viscous
not be required.
fluid or partial restriction of the element with test
contaminant may be used to obtain the required pres-
packaging. - Unit
5.1.1.2.1 Intermediate
sure differential). There shall be no evidence of
quantities in an intermediate container shall be as
permanent deformation or other damage.
specified. Intermediate containers shall conform
to PPP-B-566 PPP-B-676 or PPP-B-636 at the
4.5.6 Pressure test (case) (type I). - One sample
option of the manufacturer. Box closure shall con-
filter assembled with the cover nut tightened to a
form to the applicable box specification or appendix
torque of 15 to 25 pound-feet shall be subjected for a
thereto. Unless otherwise specified the gross
period of 5 minutes to an internal pressure of 150
weight of paperboard boxes shall not exceed 10
p.s.i. for type I, classes 1 and 2 or 100 p.s.i. for
pounds; fiber boxes shall not exceed 20 pounds.
type I, classes 3 and 4. This test shall be made
with Diesel fuel oil at a temperature of 90 to
5.1.2 Level C. - The filter assemblies and
During and after the tests, the sample assembly shall
filter elements shall be packaged in accordance
be examined for any evidence of leakage, permanent
with the manufacturer's commercial practice.
deformation, or any other damage.
5.2 Packing (see 6.2). -
4.5.7 Resistance to shock. - Sample filter assem-
bly (with and without elements) shall be assembled and
5.2.1 Level A. -
the filter filled with diesel fuel oil. The inlet and the
outlet shall be plugged. Sample elements shall have
5.2.1.1 Filter assemblies and filter elements
F. for a
been subjected to a flow of clean oil at
period of not less than 8 hours, and may be those.
of one type packaged as specified shall be packed
in overseas type, wood cleated fiberboard, nailed
used in the media migration test. The assembly shall
wood, wirebound wood, wood cleated veneer paper
be subjected to grade I shock test as specified in MIL-
S-901. When elements only are submitted for test a
overlaid, or wood cleated plywood boxes conform-
filter case furnished by the laboratory shall be used.
ing to PPP-B-591, PPP-B-621, PPP-B-585, PPP-
13-576 or PPP-B-601, respectively at the option of
4.6 Comparison inspection. - When deemed neces-
the contractor. Unless otherwise specified shipping
sary by the Bureau of Ships, sample filter assemblies
containers shall have caseliners conforming to MIL-
and-filter elements shall be selected and forwarded to
L-10547. Caseliners shall be closed and sealed
a laboratory satisfactory to the Bureau of Ships for
in accordance with the appendix to MIL-L-10547.
comparison inspection. The samples shall be sub-
Boxes shall be closed and strapped in accordance
jected to any or all of the tests specified in 4.5 con-
with the applicable box specification or appendix
sidered necessary to determine that the sample is
thereto. The gross weight of wood or wood cleated
equal to the sample upon which qualification approval
boxes shall not exceed 200 pounds.
was based. If an unsatisfactory report is obtained,
the laboratory shall immediately notify the Bureau of
5.2. 1.2 Elements of one size packaged as
Ships.
specified shall be packed in overseas type, wood
cleated fiberboard, nailed wood, fiber, wire-
4.7 Inspection of preservation, packaging, and
bound wood, wood cleated veneer paper overlaid,
packing. - Sample items and packages shall be selected
or wood cleated plywood boxes conforming to PPP-
and respected in accordance with MIL-P-116 to verify
B-591, PPP-B-621, PPP-B-636 class 3, PPP-B-
conformance to the requirements of section 5 herein.
585, PPP-B-576 or PPP-B-601, respectively at the
option of the contractor. Shipping containers shall
5. PREPARATION FOR DELIVERY
have caseliners conforming to MIL-L-15047.
Caseliners shall be closed and sealed in accord-
5.1 Preservation and pa ckaging (see 6. 2). -
ance with the appendix to MIL-L-15047. Case-
liners for boxes conforming to PPP-B-636 may
5.1.1 Level A.-
be omitted provided all joints and corners of the
boxes are sealed with minimum 1-1/2 inch wide
5.1.1.1 Filter assembly. - Interior surfaces of
tape conforming to PPP-T-76. Boxes shall be
filter cases shall be flushed or fog-sprayed with pre-
closed and strapped in accordance with the appli-
servative conforming to type P10, grade 2 of MIL-
cable box specification or appendix thereto, ex-
P-116. Exterior unpainted ferrous surfaces shall be
cept fiber boxes shall be banded with tape conform-
coated with preservative conforming to grade 4 of
ing to type III of PPP-T-97 and the appendix there-
-16173. All openings shall be plugged or sealed
to. The gross weight of wood or wood cleated boxes
to prevent entrance of dirt and moisture. Unit pack-
shall not exceed 200 pounds; fiber boxes shall not
aging shall be in accordance with method I of MIL-P-116. exceed the weight limitations of the applicable box
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