MIL-STD-1330 Precision Cleaning And Testing Of Shipboard Oxygen, Helium, Helium-Oxygen, Nitrogen, And Hydrogen SystemsThis standard provides the requirements for precision cleaning and testing of oxygen or oxygen-enriched systems and components; oxygen generating plants including nitrogen, hydrogen, and demineralized water support systems and components; and helium, helium-oxygen, and hydrogen life support systems and components. Each activity will implement the applicable requirements of this document through a locally prepared and approved procedure. Activities subject to additional quality assurance requirements such as NAVSEA SS800-AG-MAN-010/P-9290 or NAVSEA SS521-AA-MAN-010 will obtain procedure approval from the applicable certifying activity.

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MIL-STD-1330D(SH)

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c.    Intimate packaging.  After performing step (a) or (b), if applicable, place the component in a film bag and gently compress the bag to force out excess air.  Heat seal the bag.  For temporary closures, such as maintaining cleanliness of a component during transport, tape may be used to completely seal the bag opening provided the adhesive does not come in contact with the cleaned component.

d.    Environmental packaging.  After performing step (c), package the component using the same methods as specified in step (c).

5.16.1.3  Internally cleaned items.  If feasible, plugs or external caps should be used.  Film can be used when openings cannot be sealed with caps or plugs.  Film should not be used for flasks because it may not provide an adequate moisture barrier.  The requirements are as follows:

a.    Plugs and external caps.  Plugs and caps shall have the same or higher degree of cleanliness as the item being sealed.  Threaded plugs shall be manufactured from brass, copper-nickel, or nickel-copper.  Mechanically expandable, insert type plugs fabricated from nonshedable rubber in accordance with ZZ-G-710, or equal, are acceptable.  The use of wood or plastic plugs is not permitted.  Caps shall be fabricated from nonshedable plastic or corrosion-resistant metal such as stainless steel, monel, brass, or copper.  Caps shall be secured and sealed by bolting or by taping.  Tape or wood shall not be used as the capping material.  Wood, however, may be used over the

metallic cap for purposes of bolting.

b.    Closure with film.  Apply a double layer of film as specified in Table XI over openings.  Secure each layer of film with a minimum of two tight wraps of tape.  The tape shall not contact the open portions of the item.  If the closure is for other than temporarily maintaining cleanliness, a third layer of packaging material shall be applied in the same manner or, preferably and if practical, completely wrap the item with packaging material as specified in

5.16.1.2.

TABLE XI.  Film for packaging.

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