of the properties as specified in paragraph entitled "Elastomer." Required
repair materials shall be readily available from the fender manufacturer.
2.4
SOURCE QUALITY CONTROL
2.4.1
Fender Compression Test
Compress fender along its diameter between two parallel flat plate surfaces
to a compressed dimension of [40] [_____] percent of its original diameter.
Record load and the corresponding deflection at 25 mm one inchincrements
and plot as a graph of load versus deflection. The load-deflection curve
shall then be integrated to generate an energy-deflection curve for the
fender. The fender shall meet the energy and force performance
requirements of the paragraph entitled "Performance Requirements." After
compression of the fender to [40] [_____] percent of its original diameter
([60] [_____] percent compression) the fender shall rebound to [90] [_____]
percent of its original diameter within two minutes after the load is
removed, and to 95 percent of its original diameter within 30 minutes after
the load is removed.
2.4.2
Fender Cyclic-Compression Test
Compress the fender along its diameter between two parallel flat plate
surfaces to a compressed dimension of 40 percent of its original diameter.
Release the load and recompress as before. Repeat the compression and
release cyclic loadings for a minimum of 10 full cycles of compression.
Permanent deformation, cracking, or tearing of the fender skin, fender
core, or end fittings shall constitute failure of this test.
2.4.3
Fender Sustained-Load Test
Apply a [667,200] [_____] N [150,000] [_____] pound compressive load as in
paragraph entitled "Fender Compression Test," and hold this load for 24
hours. Record load and deflection each hour. Immediately after release of
the load, measure rebound of the fender. Continue to record fender rebound
for 24 hours. Failure of the fender or foam core to rebound to 90 percent
of its original diameter after 24 hours shall constitute failure of this
test. If the foam core is not bonded to the skin of the fender, devise and
execute a means for measuring rebound of the foam core and for measuring
the void between the foam core and the skin. The maximum rate of
compression per minute shall be 20 percent of the total reaction force at
60 percent compression. The full compression cycle, not including rebound,
shall take a minimum of 5 minutes.
2.4.4
Fender Pull-Through Test
Devise and perform a test which will measure the resistance of the end
fittings and internal chain to pull through the longitudinal axis of the
fender. Failure of the chain, end fittings, or skin to resist at least
[177,920] [_____] N [40,000] [_____] pounds of pull-through tension shall
constitute failure of this test. After loading, evidence of permanent
deformation, cracking, or tearing of the fender or end fittings shall also
constitute failure of this test.
2.4.5
Elastomeric Skin Thickness Test
**************************************************************************
NOTE: The suggested number of fenders that should
be tested is as follows:
SECTION 02396
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