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|  MIL-M-85831 (AS)
AMERICAN SOCIETY FOR TESTING AND MATERIALS
Commercial Packaging.
ASTM D 3951
(Application for copies should be addressed to the American Society for
Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.)
2.3 Order of precedence. In the event of a conflict between the text of
this specification and the references cited herein, the text of this
specification shall take precedence. Nothing in this specification, however,
shall supersede appl icable laws and regulations unless a specific exemption
has been obtained.
REQUIREMENTS
3.
3.1 Qualification. Masks furnished under this specification shall be
products which are authorized by the qualifying activity for listing on the
applicable qualified products list at the time set for the opening of bids
(see 4.3 and 6.3).
3.2 First article. When specified in the contract or purchase order, a
sample shall be subjected to first article inspection (see 4.4 and 6.4).
3.3 Selection of specifications and standards. Specifications and
standards for nessesary commodities and services not specified herein shall be
selected as specified in MIL-STD-143.
3.4 Materials. Materials referenced herein shall conform to applicable
specifications and standards. Materials that are not covered by
specifications and that are not specifically described herein shall be the
best quality and the lightest practical weight. Materials shall be corrosion
resistant, or suitably treated to resist corrosion due to fuels, salt spray,
environmental , chemical or biological warfare conditions. All materials used
in the mask shall be comparable with 100 percent oxygen atmospheres and shall
not transfer odor of an obnoxious or unpleasant type.
3.4.1 Aluminum alloy parts. Aluminum alloy parts shall be anodically
treated as specified in MIL-A-8625.
3.4.2 Dissimilar metals. Dissimilar metals shall not be used in intimate
contact with each other. Dissimilar metals are as specified in MIL-STD-889.
3.4.3 Nonmetallic materials. Rubber seals and o-rings shall meet the
requirements as specified in AMS-3238 and the requirements specified herein.
All materials shall be incapable of
3.4.4 Fungus-proof materials.
supporting fungoid growth.
3.4.5 Age Elastomeric components shall be comprised of materials with
expected shelf storage llfe of greater than 5 years as specified in
MIL-HDBK-695 when consistent with the properties required for functional
These components alone or as part of an assembly shall be
suitability.
delivered to the Government with less than 18 months elapsed from date of
cure/manufacture to the date of delivery to the Government.
5
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