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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)

CONTENTS

PARAGRAPH

PAGE

SCOPE .......................................................................................................................... 1

1.1

Scope............................................................................................................................. 1

1.2

Classification.................................................................................................................. 1

APPLICABLE DOCUMENTS......................................................................................... 1

2.1

General. ......................................................................................................................... 1

2.2

Government documents. ............................................................................................... 1

2.2.1

Specifications, standards, and handbooks.................................................................... 1

2.2.2

Other Government documents, drawings, and publications. ........................................ 2

2.3

Non-Government publications. ...................................................................................... 2

2.4

Order of precedence...................................................................................................... 3

REQUIREMENTS.......................................................................................................... 4

3.1

Qualification. .................................................................................................................. 4

3.1.1

Re-qualification. ............................................................................................................. 4

3.2

Materials. ....................................................................................................................... 4

3.2.1

Product toxicological data and disposal. ....................................................................... 4

3.2.2

Human exposure toxicology. ......................................................................................... 4

3.2.3

Tracer elements............................................................................................................. 4

3.2.4

Manufacturer internal specification and production quality control documents............. 5

3.3

Age................................................................................................................................. 5

3.3.1

Storage life..................................................................................................................... 5

3.3.2

Storage limit. .................................................................................................................. 5

3.4

Coloring pigments.......................................................................................................... 5

3.5

Marker legibility. ............................................................................................................. 5

3.6

Physical properties and characteristics. ........................................................................ 6

3.7

Performance requirements. ........................................................................................... 6

3.7.1

Fuel immersion. ............................................................................................................. 6

3.7.2

Hydrolytic stability. ......................................................................................................... 6

3.7.3

Explosion suppression and flame arrestor characteristics. ........................................... 6

3.7.4

Corrosion and adhesion................................................................................................. 8

3.7.5

Electrical resistivity permanence. .................................................................................. 8

3.7.6

Fuel compatibility. .......................................................................................................... 8

3.7.7

Electrical resistivity and electrostatic fuel impingement test.......................................... 8

3.7.8

Infrared spectrum analysis............................................................................................. 9

3.7.9

Static charge dissipation test. ........................................................................................ 9

3.7.10

Electrochemical corrosion. ............................................................................................ 9

3.7.11

Aircraft service test. ....................................................................................................... 9

3.7.12

Manufacturing demonstration details............................................................................. 9

3.8

Dimensions and tolerances. .......................................................................................... 9

3.8.1

Optional bun sizes. ...................................................................................................... 10

3.9

Final product identification. .......................................................................................... 10

3.10

Marking. ....................................................................................................................... 10

3.10.1

Additional marking. ...................................................................................................... 10

VERIFICATION............................................................................................................ 11

4.1

Classification of tests. .................................................................................................. 11

4.2

Test conditions............................................................................................................. 11

4.2.1

Temperature and humidity........................................................................................... 11

4.2.2

Test fluids..................................................................................................................... 11

4.2.3

Basic property testing. ................................................................................................. 11

4.2.4

Specimen cutting. ........................................................................................................ 11