||MIL-DTL-5624U: TURBINE FUEL, AVIATION, GRADES JP-4 AND JP-5
4.1 Conformance inspection. Conformance inspection shall
consist of all examinations, inspections, and tests of this specification.
4.1.1 Inspection lot. For conformance inspection,
individual lots shall be examined, inspected, and tested as specified herein
to ensure individual lots meet all the requirements specified in section 3.
4.1.2 Sampling plans.
184.108.40.206 Sampling for conformance inspection. Each
bulk or packaged lot (see 6.6) of
material shall be sampled in accordance with ASTM D4057 and ASTM D4177 or
both, except where individual test procedures contain specific sampling
220.127.116.11.1 Sample containers. Examine the sample
container for conformance to ASTM D4306 recommended sample containers
18.104.22.168 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
4.2 Inspection conditions. The fuel shall meet
limiting values in Table I, using the
specified test methods.
4.3 Methods of inspection.
4.3.1 Examination of product.
22.214.171.124 Visual inspection. Samples selected in
accordance with 4.1.1 shall be visually examined for compliance with 3.4.
126.96.36.199 Examination of
empty containers. Prior to filling, each empty unit container shall be
visually inspected for cleanliness and for proper usage in accordance with
188.8.131.52 Examination of filled containers.
Samples taken as specified in 4.1.2 shall be examined for conformance to
MIL-STD-290 with regard to fill, closure, sealing, leakage, packaging,
packing, and markings.
4.3.2 Chemical and physical tests. Tests to determine
conformance to chemical and physical requirements shall be conducted in
accordance with Table I. Requirements
contained in Table I are not subject to corrections for test tolerances. If
multiple determinations are made, results falling within any specified
repeatability and reproducibility tolerances shall be averaged to determine
conformance to Table I. The following applies to all specified limits in
this standard: For purposes of determining conformance with this
specification, an observed value or a calculated value shall be rounded "to
the nearest unit" in the last right-hand digit used in expressing the
specification limit, in accordance with the rounding method of ASTM E29.
184.108.40.206 Thermal stability. The thermal stability test
shall be conducted using ASTM D3241 (JFTOT). The heater tube shall be
rated visually (see Annex A1 of ASTM D3241).
220.127.116.11.1 Test conditions.
Minimum heater tube temperature at maximum point:
Fuel system pressure: 3.45 MPa (500
Fuel flow rate: 3.0 mL/minute
Test duration: 150 minutes
18.104.22.168.2 ASTM D3241 procedure.
a. Record the differential pressure in mm Hg at 150
minutes, or time pressure of 25 mm Hg, whichever comes first.
Record the heater tube deposit code rating at the end of the