MIL-DTL-38219D(USAF)
4.2.1 Sample. One 208-liter (55-gallon) drum of fuel from the first batch that represents the product offered to the
Government under any contract shall be forwarded to AFRL/PRSF, Bldg 490, 1790 Loop Road N, Wright-Patterson
AFB OH 45433-7103. Test data that show the results of tests required by 3.3 and 3.3.1 performed on products
produced or blended in an identical manner to the batch sample shall accompany the 208-liter (55-gallon) sample
forwarded under each contract. The Government will perform tests as necessary to confirm or validate the
contractor's test results. Failure of the storage stability test will render the contractor ineligible for further contract
award, pending assurance by the supplier to the satisfaction of the Air Force Research Laboratory's Fuels Branch
(AFRL/PRSF) that any future product will meet the storage stability requirement. The storage stability test must
then be repeated on the improved product to prove that the product is totally acceptable.
4.3 Conformance inspection. Test for the acceptance of individual lots shall consist of tests for all requirements
specified in section 3, except storage stability. Quality conformance inspection shall include the test requirement
herein. Contractor shall send a 7.08-liter (2-gallon) sample of each batch of fuel produced under any contract to a
designated acquisition activity laboratory for acceptance testing.
4.3.1 Inspection lot. For acceptance purposes, individual lots shall be examined as specified herein and subjected
to tests for all requirements cited in section 3.
4.3.2 Sampling plans
4.3.2.1 Sampling for verification of product quality. Each bulk or packaged lot (see 6.6) of material shall be
sampled for verification of product quality in accordance with ASTM D4057 or ASTM D4177, or both, except where
individual test procedures contain specific sampling instructions.
4.3.2.1.1 Sample containers. A number of jet fuel properties are very sensitive to trace contamination which can
originate from sample containers. Refer to ASTM D4306 for recommended sample containers.
4.3.2.2 Sampling for examination of filled containers for delivery. A random sample of filled containers shall
be selected from each lot. The samples shall be examined in accordance with 4.5.1.3.
4.3.2.3 Special samples. One 208-liter (55-gallon) drum of fuel from the first production lot that represents the
product offered to the Government under an initial contract will be forwarded to the Air Force Research Laboratory
at AFRL/PRSF, Bldg 490, 1790 Loop Road N, WPAFB OH 45433-7103. Test data that shows the results of tests
required by 3.3 shall accompany the 208-liter (55-gallon) sample. The Government will perform tests as necessary
to confirm or validate the company's test results. A complete report of analysis shall be forwarded to the same
address for all lots of fuel produced under any Government contract. Failure of any tests conducted within 12
months after receipt of the fuel sample shall render the contractor ineligible for further contract award, pending
verification of the quality of the product to the satisfaction of the acquisition activity.
4.3.3 Inspection. Inspection shall be performed in accordance with method 9601 of FED-STD-791.
4.3.4 Batch sample. Air Force reserves the right to have a 18.9-liter (5-gallon) sample of each batch of fuel
produced under any contract forwarded to AFRL/PRSF, Bldg 490, 1790 Loop Road N, Wright-Patterson AFB OH
45433-7103. This sample will be stored at Wright-Patterson AFB and will represent a retained sample from each
batch of fuel produced. All specification tests may be performed any time within 12 months from date of
manufacture. Failure of any test will render the contractor ineligible for further contract award, pending verification
of the quality of the product to the satisfaction of Air Force Research Laboratory's Fuels Branch (AFRL/PRSF). The
contracting officer and contractor will be promptly advised of any failures.
4.4 Inspection conditions. The fuel shall comply with the specified limiting values in table I, using the cited test
methods. The specified limiting values must not be changed. This precludes any allowance for test method
precision and adding or subtracting digits. For purposes of determining conformance with the specified limiting
values, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand place
of digits used in expressing the specified limiting value, in accordance with the Rounding-Off Method of ASTM
E29.
4.5 Methods of inspection
4.5.1 Examination of product
4.5.1.1 Visual inspection. Samples selected in accordance with 4.3.1 shall be visually examined for compliance
with 3.7.
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