MIL-P-46183 Plastic Molding And Extrusion Material, Polyetheretherketone PeekThis specification covers polyetheretherketone Peek thermoplastic materials suitable for injection molding or extrusion see 6.1.

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MIL-P-46183

3.3        Form.  The form of the PEEK thermoplastic shall be granules, pellets or powder.        When specified by the procuring activity, the form shall be in the size and shape specified (see 6.2).

3.4  Flammability and burning.

3.4.1        Oxygen index.  The oxygen index for all types of PEEK thermoplastic shall be 35% minimum (see 4.3).  The thickness of the test specimen shall be 3.2 mm.

3.4.2  Specific optical density.  The maximum specific optical density, Dmax, in the flaming mode for all types of PEEK thermoplastic shall be 25 (see 4.3 and

6.3).        The Dmax in the nonflaming mode shall be 5.  Samples for smoke emission tests in accordance with ASTM F 8l4 (see table V) shall be slabs

0.125 in thick x 3 in x 3 in (3.l mm thick x 76.2 mm x 76.2 mm).

3.5  Electrical properties.  The electrical properties of the PEEK thermo- plastic shall be as specified in table IV (see 4.3).

TABLE IV.  Electrical properties of PEEK.

Property                             Minimum Property Values

   Type I           Type II             Type III        

                         (nonreinforced)  (30% glass fiber)  (30% carbon fiber)

                          (15.8 MV/m)      (17.7 MV/m)        

1/  Volume resistivity in ohm-m has a value of 1/100 of the value in ohm-cm.

2/  The thickness of the test specimen shall be 0.125 in (3.1 mm).

4.  QUALITY ASSURANCE PROVISIONS

4.1  Responsibility for inspection.  Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein.  Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government.  The Government reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements.

4.2  Classification of tests.  The examination and testing of the plastic molding and extrusion material shall be classified as follows:

a.  Preproduction tests

b.  Quality conformance tests