separators for use in removing undissolved water and solid contaminants from petroleum fuels.

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MIL-PRF-52666F

a. First article inspection (see 4.2).

b. Conformance inspection (see 4.3).

4.2 First article inspection. First article inspection shall be performed on complete F/S

unit(s), as specified in 6.3, when a first article sample is required (see 3.1). The inspection shall

include the examinations of 4.5.1 and the tests in 4.5.2. When specified (see 6.2), first article

inspection shall include a user evaluation inspection to include one or more of the examinations

and tests included in this document.

4.3 Conformance inspection.

4.3.1 Examination. The F/S shall be examined for the defects specified in 4.5.1. The

presence of one or more defects shall be cause for rejection.

4.3.2 Testing. The F/S shall be tested as specified in 4.5.2.3. Failure of this test shall be

cause for rejection.

4.4 Inspection conditions. The appendix describes an acceptable facility and general

requirements for testing the F/S. The manufacturers testing facility shall be subject to approval

by the Government. The facility shall contain calibrated and certified measuring equipment.

4.4.1 Test fuel. The test fuel shall be Jet A or Jet A-1 fuel conforming to ASTM D 1655 or

equivalent.

4.4.2 Test fuel temperature. Unless otherwise specified (see 6.2), the test fuel temperature for

each test shall be in the range of plus 40�F (5�C) to plus 86�F (30�C). The temperature shall not

vary greater than plus or minus 5�F (�3�C) from the starting temperature of any individual test

set or test series.

4.4.3 Test contaminants. Fresh tap water with an undissolved solids content of less than

1.0 mg/L, and having a surface tension of not less than 65 dynes/cm at 24�C, shall be used. The

acidity-alkalinity value (pH) shall be between 5 and 8.

4.4.4 Test sampling procedures and data. The test sampling procedures shall be in

accordance with the first article and conformance inspection instructions provided by the

Government. Figure 4 is an example of a typical test report form.

4.5 Inspection procedures.

4.5.1 Examinations. The F/S shall be examined as specified for the defects cited in table III.