MIL-DTL-5020E
d. Ensure that no more than one minute has elapsed between removing the compass
liquid sample from the low temperature storage and completing the test.
4.4.5 Fluorescence. The following measuring procedures shall be performed using an
illuminometer or low-brightness photometer capable of accurately measuring ultraviolet light in
the spectral region of 365 nanometers (nm). The illuminometer or photometer shall have the
capability of taking brightness or luminance measurements at a 45-degree angle of incidence, or
the manufacturer of the test system shall provide an equivalent method for brightness
measurement.
a. Place the sample in an absorption cell constructed of non-fluorescent glass having a
10 mm light path through the liquid and an inside diameter of 32 mm.
b. Measure the brightness at a 45-degree angle to the plane of the flat surface at the
absorption cell. The illumination shall be incident at a 45-degree angle to the plane of the flat
surface of the absorption cell and shall approach the sample at right angles to the direction of
observation. A non-fluorescent white paper backing may be used behind the cell to create better
field uniformity.
c. Excite the specimen in this position with ultraviolet light of 365 nm wavelength until
it reaches a constant brightness. The proper intensity of the light source and specimen shall be
determined with the aid of a pre-calibrated reference standard designed for ultraviolet light
intensity calibration. The method of calibrating the light source intensity shall be one acceptable
to the customer. The luminance or brightness value shall be reported in mcd/m2 as referenced in
ASTM E2072.
4.4.6 Examination of filled containers. Each sample container shall be examined for
defective construction, evidence of leakage, and net content.
4.5 Tests. Tests shall be performed in accordance with the applicable methods specified
in table III to determine conformance with the requirements specified in 3.3.
TABLE III. Test methods for inspections.
Characteristic
ASTM International
FED-STD-791
Copper corrosion
ASTM D130
-
Flash point
ASTM D56
-
Distillation
ASTM D86
-
Reaction after oxidation
-
5101
Color
ASTM D156
-
Kinematic viscosity
ASTM D445
-
Aromatic content
ASTM D1319
-
7
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