Frequently Asked Questions - Submethod 55

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Listed below are portions of MIL-STD-2073 covering preservation submethod 55 (formerly Method IId: rigid metal container, sealed). This web page identifies the method, types of materials authorized, a graphic illustration, and a link to the School of Military Packaging Technology's 'How To' web documents. If this material does not enhance your understanding regarding this method of preservation, please use either our feedback form to provide recommendations or contact us directly by E-mail us at:

illustration of preservation submethod 31
  • How should items that require Method 55 preservation be packaged?
    MIL-STD-2073 cites, 'The item, preserved, wrapped, cushioned and desiccated as required, shall be enclosed within a sealed, close fitting, metal container. Any selected type of rigid metal container with machine seamed or welded closure or reusable container with gasketed or threaded closure may be used if the container provides a WVTR not exceeding 0.075 grams per 100 square inches per 24 hours, when tested in accordance with ASTM-D1008, unless a specific type of rigid metal container and closure is specified in the contract or purchase order.'

    • NOTE: The packaging requirements (code) in your contract may specify the exact packaging materials to use to protect the item.

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Last Updated:  14 Oct 2015