MIL-DTL-5020E
3.4 Liquid performance. The performance of the compass liquid shall conform to the
following requirements.
3.4.1 Freezing point and cloudiness. When tested as specified in 4.4.4, the compass liquid
shall not gel, crystallize, or solidify after being maintained at a temperature at or below -53.9 ºC
for a time period of 30 minutes. At the end of the test, the turbidity or haze of the liquid shall not
be greater than the turbidity standard for barium sulfate suspension as determined in 4.4.4.1.
3.4.2 Fluorescence. The fluorescence of the compass liquid shall not exceed 3.183
millicandela/m2 (mcd/m2) as determined in accordance with 4.4.5.
3.5 Toxicity. The compass liquid shall have no adverse effect on the health of personnel
when used for its intended purpose. The compass liquid shall not contain elements that produce
noxious vapors or irritate personnel during formulation or use under conditions of adequate
ventilation. Caution shall be exercised to avoid prolonged contact with the skin. Occupational
Safety and Health Administration (OSHA) standards and guidelines shall be observed in
accordance with 29 CFR 1910. Questions pertaining to any toxic effects of the liquid shall be
referred by the procuring activity to the appropriate departmental medical service that will act as
an advisor to the procuring activity.
3.6 Workmanship. The compass liquid shall be uniform in quality and shall meet all
requirements of this specification.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are
classified as follows:
a. First article inspection (see 4.2).
b. Conformance inspection (see 4.3).
4.2 First article inspection. When first article inspection is required (see 3.1 and 6.2), the
number and type of units shall be specified. Each submitted unit shall undergo the examination
for defects specified in table II, the examinations specified in paragraphs 4.4.1 through 4.4.6, and
the tests specified in 4.5. Any unit displaying any major defect shall be rejected. Any unit
failing any of the tests in 4.5 shall be rejected.
4.3 Conformance inspection. Conformance inspection shall consist of the visual
examination for defects listed in table II as well as the examinations of paragraphs 4.4.1 through
4.4.6. Unless otherwise specified (see 6.2), the manufacturer shall select the type of sampling plan
(attribute, variable, or continuous) in accordance with MIL-STD-1916. The sample size shall be
selected in accordance with verification level I of MIL-STD-1916.
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