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NPFC - MIL-STD-202-112

TEST METHOD STANDARD METHOD 112, SEAL

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Organization: NPFC
Publication Date: 18 April 2015
Status: active
Page Count: 19
scope:

Purpose. The purpose of this test method is to determine the effectiveness of the seal of a component part which has an internal cavity which is either evacuated or contains air or gas. A defect in any portion of the surface area of a sealed part can permit entrance of damaging contaminants which will reduce its effective life. This test will detect leaks due to the use of inferior sealing materials, or to the manufacturing processes used to form the seal. The degree of completeness of the seal can be verified by testing in the "as received" condition or after submission to other environmental or physical-characteristics tests, such as thermal shock, physical shock, or vibration. This test method does not include the many existing versions of lesser-sensitivity seal tests now appearing in some specifications, which verify such requirements as "water tightness", "moisture proofness", etc. In those lesser-sensitivity seal tests, parts are submerged to various depth in water, heated water, water or alcohol with a vacuum, water with a wetting agent, etc; all these tests depend on observation of bubbles as the criterion for failure.

Document History

January 21, 2020
Method 112, Seal
A description is not available for this item.
MIL-STD-202-112
April 18, 2015
TEST METHOD STANDARD METHOD 112, SEAL
Purpose. The purpose of this test method is to determine the effectiveness of the seal of a component part which has an internal cavity which is either evacuated or contains air or gas. A defect in...

References

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