MIL-PRF-87260 Foam Material, Explosion Suppression, Inherently Electrostatically Conductive, For Aircraft Fuel TanksThis document covers the requirements for an electrically conductive open-celled foam material that will be used for explosion suppression in aircraft fuel.

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MIL-PRF-87260B(USAF)

covered by this specification. Information pertaining to qualification of products may be

obtained from Mr. Alan Fletcher, AFRL/MLSA, 2179 12th Street, Wright-Patterson AFB OH

6.3.1 Qualifying activity.

The organization responsible for qualification approval for material covered by this specification:

Air Force Research Laboratories

ATTN: AFRL/MLSA

2179 12th Street, B652 R142

Wright-Patterson AFB, OH 45433-7718

6.3.2 Qualification tests.

The qualification tests contained in this specification are considered adequate to insure that the

explosion suppression material procured under this specification is satisfactory for the intended

purpose provided the materials are similar to polyurethane reticulated foam. The qualifying

activity may specify additional testing on materials submitted for qualification approval with

chemical and mechanical properties not anticipated in the preparation of this specification.

These tests may include, but will not necessarily be limited to, the following: ballistic response

(gunfire), fuel flow and pump down, venting, icing, and fuel system compatibility.

6.4 Supersession data.

The inherently electrically conductive explosion suppression materials conforming to this

specification supersedes all previous non-conductive explosion suppression foam baffle

materials governed by MIL-DTL-83054, for new procurement applications.

6.5 Definitions.

For the purpose of this specification, the following definitions will apply:

6.5.1 Run of material.

Any continuous batch of product or a machine run produced over any continuous time period,

the maximum run time being a 4-hour period. When production is interrupted for 2 or more

hours, this will constitute a new run.

6.5.2 Test section width.

The standard width direction on a bun (40 or 44 inches).

6.5.3 Direction of rise.

The height direction relative to the standard bun (the 4, 8, or 12-inch direction).

6.5.4 Machine direction.

The lengthwise direction during production or the longest dimension relative to the standard bun

size.