MIL-C-22587B
4.6.3.1 Storage test procedure. Each applicable group of two filled
cartridges with end closures af fixed, shall be placed in weighed 250 cc
beakers, with one of the filled cartridges in an inverted position with
respect to the other filled cartridge, and stored for 6 months at a
temperature of 158° +
The empty control blank shall be placed in a
weighed 250 cc beaker and shall be stored along with the filled cartridges for
the specified time. At the conclusion of the storage period, the cartridges
shall be removed from the beakers and examined for evidence of swelling, any
indication of deformation or deterioration, and any displacement or corrosion
of end closure. oil leakage shall be determined by weighing the beaker before
and after the storage test and calculating the percent of leakage. The
cartridges shall then be subjected to the operation test of 4.6.2. After the
operation test the cartridges and grease will be retained for the
compatibility tests (see 3.5).
4.6.4 Compatibility.
4.6.4.1 Cartridge absorption of grease constituents. One each of the
cartridge pairs used in the storage test (4.6.3) shall be utilized for this
test. A portion of the cartridge material weighing approximately 2 grams
shall be cut from each cartridge, wiped free of grease with a clean, dry cloth
and weighed to the nearest 0.1 milligram. A like sample shall be cut from the
control blank. The inner liner and plies shall be examined for evidence of
swelling, separation of plies or other visible damage. Each sample shall be
extracted three times with 50 cc portions of grease solvent. The three
extracts of each sample of the filled cartridges shall be combined and the
solvent evaporated in a tared container. The control blank shall also be
extracted se arately and the solvent evaporated in a tared container. Each
residue shall be dried for 30 minutes in an oven maintained at 212° + 5°F,
cooled and weighed to 0.1 milligram.. A blank determination shall be-made
using a portion of a cartridge which has not contained grease. The weight of
residue obtained from the sample blank shall be subtracted from the weight of
residue obtained from each extracted sample. Based on the original weight of
the grease contained in the cartridge and the weight of the cartridge empty
(with end closures removed) calculate the percentage of grease constituents
absorbed by the cartridge material (see 3.5). ` "
4.6.4.2 Grease contamination by cartridge constituents. One sample of
each type grease discharged at t he completion of the storage test (4.6.3)
shall be examined for contamination from the cartridge constituents by
analysis and comparing it to an applicable grease blank. This can be done by
test methods ASTM E 168, or ASTM E 334, or ASTM D 128. ASTM E 311 maybe used
for sampling and preparation technique.
5.
PACKAGING
5.1 Empty cartridges. Packaging, packing and marking of empty cartridges
shall be in accordance with MIL-STD-1188.
5.2
Filled cartridges. When cartridges conforming to the requirements
of this specification are to be furnished filled, the acquiring agency shall
specify the specific grease to be furnished (see 6.2). Packaging, packing and
marking of filled cartridges shall be in accordance with MIL-STD-290 in the
levels and quantities specified by the acquiring activity.
8
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business