MIL-STD-1622B(SH)
TABLE VIII. Inspection requirements.
Application |
Inspection & criteria |
Critical (diver's life support) (oxygen-nitrogen producer air supply) |
Ultraviolet light: No evidence of fluorescence from oil, grease, ink, dye, particulate or fibers. White light: No evidence of oil, grease, ink, dye, particulate or fibers. Swipe: No evidence of oil, grease, ink, dye, particulate or fibers. |
Emergency breathing air |
Ultraviolet light: No evidence of fluorescence from oil, grease, ink, or dye. White light: A degree of cleanliness where internal surfaces are free of foreign material except visual trace particles including tap water residue are acceptable. Adherent light superficial rust on non- corrosion resistant surfaces, such as carbon steel, caused by exposure to the atmosphere is acceptable. Swipe: Not applicable. |
High-pressure air Medium-pressure air Nitrogen Low pressure vital air Electronics dry air |
Ultraviolet light: Not applicable. White light: A degree of cleanliness where internal surfaces are free of foreign material. A light film coating of oil is acceptable. A light film coating, which is about 0.1 mil thick, is that which remains on the surface when an oil-coated surface is wiped off with a rag. Tap water residue leaving visual trace particles is acceptable. Adherent light superficial rust on non-corrosion resistant surfaces, such as carbon steel, caused by exposure to the atmosphere is acceptable. Swipe: Not applicable. |
Low pressure air systems (not specified above) Bleed air Deballast air |
Ultraviolet light: Not applicable. White light: A degree of cleanliness where internal surfaces are reasonably free of foreign material and any remaining residue on the surface does not interfere with system operations. Adherent light superficial rust on non-corrosion resistant surfaces, such as carbon steel, caused by exposure to the atmosphere is acceptable. Swipe: Not applicable. |
5.14.2 Shake test. A half-full capped sample container shall be vigorously agitated for not less than 5 seconds, then allowed to stand undisturbed for 15 minutes. Any evidence of bubbles remaining on the surface shall be cause for rejection. The shake test is useful in detecting the presence of some soluble organic contaminants such as hydrocarbon surfactants
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