MIL-PRF-25508H
4.5 Containers of Type I oxygen.
4.5.1 Filling pressure. Containers shall be tested for proper filling pressure by attaching a
calibrated Bourdon-tube gauge or equivalent to the valve outlet and by attaching either a thermocouple or
thermometer to the container wall. The gauge shall have scale divisions not greater than 100 kPa (15
psi). If a thermometer is used, tape or putty shall be applied to the bulb to protect if from extraneous
temperatures. Putty shall not be applied between the bulb and the container wall. The thermometer shall
have scale divisions not greater than 1°C (2°F). The containers shall be stabilized to ambient
temperature. The valve shall then be opened and the internal pressure observed on the gauge. If the
internal pressure differs from the applicable pressure value by more than 100 kPa (15 psi), the container,
and all other containers filled from the same manifold at the same time shall be rejected.
4.5.2 Leakage. Each Type I oxygen container shall be tested for leaks at the neck threads,
stem packing, and safety device of the valve with leak-detection fluid. Valve seat leakage shall be tested
by means of a tube from the valve outlet to a container of liquid.
5.
PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in
the contract or order (see 6.2). When actual packaging of materiel is to be performed by DoD or in-house
contractor personnel, these personnel need to contact the responsible packaging activity to ascertain
packaging requirements. Packaging requirements are maintained by the Inventory Control Point's
packaging activities within the Military Service or Defense Agency, or within the military service's system
commands. Packaging data retrieval is available from the managing Military Department's or Defense
Agency's automated packaging files, CD-ROM products, or by contacting the responsible packaging
activity.
6.
NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not
mandatory.)
6.1 Intended use. The propellant covered by this specification is intended for use as follows.
a. Grade A, type I Purging and pressurization of propellant systems and rocket engines.
b. Grade A, type II Oxidizer.
c. Grade B, type II - Oxidizer.
d. Grade F, types I and II Fuel cell grade that may be used for crew breathing in subsystems
utilizing a common storage for both functions.
6.2 Acquisition requirements. Acquisition documents must specify the following:
a. Title, number, and date of this specification.
b. Type and grade of oxygen required (see 1.2).
c. If required, the specific issue of individual documents referenced (see 2.2.1).
d. When other limits or tests are required (see 3.1).
e. When the particulate test is not required (see Table I).
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