MIL-DTL-5020E
TABLE II. Classification of defects.
Examination
Defect
Major
Contamination
Contamination is visible in the liquid
101
Color and precipitation
Saybolt color scale minimum value less than +21
102
determination for light stability
Precipitation is present after light stability test
103
Color and reaction determination
Color and reaction not as specified
104
for oxygen stability
Precipitation is present after oxygen stability test
105
Freezing point and cloudiness
Gelling, crystallization, or solidification of the
106
liquid is present
The turbidity of the compass liquid sample is
107
greater than that of the turbidity standard
Fluorescence exceeds 3.183 mcd/m2
Fluorescence
108
Filled container
Construction is defective
109
Container is leaking
110
Container is not filled to proper level
111
4.4 Examinations.
4.4.1 Test preparation. Measure two quarts of the liquid in accordance with the method
described in ASTM D4057.
4.4.2 Color and precipitation determination for light stability. The following test
procedures shall be performed.
a. Fill a Vycor® test tube, or an equivalent high temperature test tube, measuring
approximately 25 millimeters (mm) outside diameter and 200 mm long with compass liquid.
b. Enclose the compass liquid in a Corex D® globe, or equivalent filtering globe, and
expose it to the light of a 13-ampere carbon arc lamp using Atlas Fade-Ometer® No. 70 and
No. 20 carbons, or equivalent.
c. Place the test tube in a vertical position 1 foot from the arc, or a distance recommended
by the manufacturer of the test instrument as applicable, and in approximately the same horizontal
plane. Make color determinations after exposure of 1, 4, and 18 hours.
d. Examine the sample for precipitation after the light stability test has been performed.
There shall be no precipitation.
4.4.3 Color and reaction determination for oxygen stability. The following test
procedures shall be performed.
5
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