MIL-DTL-83054C
4.6.11 Flammability test. Five specimens shall be tested in accordance with the procedures specified in
ASTM D-4986. Specimen size shall be 6x2x05 inches. Flammability specimens shall be taken from
the upper half of the test section, and the orientation shall be such that the 6-inch dimension is in the
machine direction (length) and the 1/2 inch dimension is in the direction of rise (height). All test values
shall be reported and the average flammability shall be calculated in inches per minute.
4.6.12 Extractable material test. The extractable material test shall be conducted on one test specimen.
The specimen size shall be 1x1x2 inches and cut by means of a saw or die. Preconditioning of the
specimen shall include drying at 90°C (194°F) for 15 minutes and then cooling the specimen in a
desiccator for a minimum of 30 minutes. Immediately following the preconditioning, the specimen shall
be weighed to the nearest 0.10 milligram. The specimen shall then be placed in a 60 ml volume Soxhlet
extraction tube which is connected to a water-jacketed condenser. Several standard boiling stones and
0.125 ml of type III test fluid conforming to ASTM-D471 shall be added to a 250 ml florence flask and
the flask attached to the extraction tube. The heating unit shall be activated and the fluid allowed to
reflux for a period of 3 hours. Following reflux, the specimen shall be removed, dried at 194°F (90°C)
for 15 minutes, cooled in a desiccator for 30 minutes and then weighed. The percentage of extractable
material shall be calculated as follows:
Percent extractables = (original specimen weight - final weight)x100
original specimen weight
4.6.13 Volume swell test. One specimen for each test fluid shall be tested for volume changes after
immersion for 24 hours at 75+5°F (23.9°+2.8°C) in type I test fluid conforming to ASTM-D471, type
III test fluid conforming to ASTM-D471 and grade JP-4 turbine fuel conforming to MIL-DTL-5624.
Sample size shall be 6x6x6 inches. The samples shall be taken from the same approximate location in
the test section as the retention test specimens specified (see 4.6.10). Dry and wet measurements shall
be made on the test specimens in accordance with ASTM-D3574. Following immersion, the
specimens shall be removed and immediately measured wet for the final volume. All values for the
specimen including original and wet volumes shall be reported and the percentage volume increase from
the original and wet measurements shall be calculated.
4.6.14 Low temperature flexibility test. Three 2x0.5xl2 inch specimens shall be preconditioned in air
along with a 3-inch diameter rod to a temperature of -55°F (-48.3°C) for 1 hour. Each specimen shall
be cut such that the 12-inch dimension is in the machine direction. At the end of the conditioning period
and without removing the specimens from the chamber, each specimen shall be bent around the rod.
Any evidence of breaking or cracking of foam strands shall be cause for failure.
4.6.15 Entrained solid contamination tests. Solid contamination tests shall be conducted on a hot-wire-
cut cylindrical specimen having dimensions of 9.25 inches in diameter and 8 inches in height. The 8-inch
dimension shall be cut in the direction of rise (bun height). For material having more than 8 inches in bun
height, the specimen shall be taken from the lower portion of the test section. Testing shall be
conducted using a U.S. Testing Company model 6523 dry cleaning machine having a tumbler rotation
speed of 45 rpm. The specimen shall be positioned in the center of the tumbler. The test cycle shall be
14
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business