MIL-STD-1622B(SH)
surfaces inaccessible for visual inspection should be cleaned as specified in
5.3 or as otherwise approved by local engineering. Large components such as
flasks shall be cleaned as specified in 5.4 or as otherwise approved (see
6.3).
5.2.2 Material and equipment.
(a)A supply of rinse water and associated equipment such as sinks or spray nozzles.
(b)A supply of compatible cleaner as specified in 4.2 or 4.3, and associated equipment such as brushes, sinks, spray nozzles, ultrasonic tanks, and steam cleaners.
(c)A supply of air or nitrogen if used for drying. (d)A clean area as specified in 5.1.
(e)Equipment to dry clean parts.
(f)Packaging material as specified in 5.16.1.
5.2.3 Clean and rinse. Cleaning and rinsing shall be accomplished in a well ventilated area as follows:
(a)Each component shall be cleaned until it passes the visual inspection as specified in 5.14.1.1. Methods such as ultrasonics, wiping with clean cloths, vacuuming, brushing, and spraying with compressed air or steam have been successfully used.
(b)When applying a compatible cleaner selected as specified in 4.3, use the cleaner in accordance with the process determined as specified in 4.4. If using NOC or TSP, review 5.3.3(f), 5.3.5(a) and 5.3.5(b) for applicable equipment and process procedures.
(c)When removing difficult soils such as heavy waterproof greases, silicone greases, and fluorinated greases, most cleaners will have limited effectiveness if used without agitation in a soak or ultrasonic tank. Hand scrubbing is often the best alternative.
(d)If an aqueous cleaner selected as specified in 4.3 is used, it shall be rinsed as specified in 4.4.5 until all cleaning agent is removed. If using NOC or TSP, rinse as specified in 5.3.5(e), except grade C water may be used. When using multiple cleaners, rinse between each different cleaner application to prevent any harmful reaction which may occur when different cleaning agents are combined.
(e)Rinsing of corrosion resistant metals such as stainless steel, nickel-copper (monel), and copper-nickel may use grade C water provided temperatures are less than 140oF. At higher temperatures, or where municipal water supplies leave undesirable deposits, grade B water should be used.
5.2.4 Dry, reassemble and package. Drying, reassembling, and packaging shall be accomplished in a clean area as follows:
(a)Components shall be dried until no moisture is visible using any method that does not result in loss of cleanliness. Ovens, vacuum ovens, dryers, heat guns, and dry air or nitrogen have been successfully used. Appropriate precautions shall be taken to prevent damaging components and software from excessive heat. For components with inaccessible areas, drying to -20o dew point is acceptable.
(b)During reassembly, use lubricants as specified in 4.7. (c)Components shall be packaged as specified in 5.16.1.
17
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business