MIL-PRF-17672E
4.4.2 2,6-Di-tert-butylphenol (DTBP). Analytical data from a NAVSEA-approved laboratory shall be
submitted to document relative absence of DTBP, and if detected, shall not exceed 10 parts per million (see 3.4).
For information on obtaining NAVSEA-approved laboratories, see 6.4.
4.4.3 Toxicity. The hydraulic fluid shall be evaluated by the Navy and Marine Corps Public Health Center
(NMCPHC) using the administrative Health Hazard Assessment (HHA). Sufficient data to permit an HHA of the
product shall be provided by the manufacturer/distributor to the NMCPHC. To obtain current technical information
requirements specified by the NMCPHC, see 6.6.
4.4.4 Hydraulic fluid compatibility. A 1:1 mixture of the hydraulic fluid and each reference hydraulic fluid
shall be subjected to the oxidation (ASTM D943), rust prevention (in the presence of salt water), foam, and
emulsion tests specified in Table I (see 3.6.1). Mixtures meeting the requirements specified in Table I are
considered compatible fluids. The reference hydraulic fluid(s) shall be fluid(s) from the Qualified Products
Database (QPD) associated with this specification. For contact information for obtaining reference hydraulic
fluid(s), see 6.4.
4.4.5 Homogeneity. After determining the pour point of the hydraulic fluid, return the test jar and hydraulic
fluid to the cooling bath, cool to 12 °C (53 °F) below the pour point, and hold at that temperature for three hours.
Remove the test jar from the cooling bath and allow to warm to room temperature. Visually examine the test
hydraulic fluid for sedimentation or separation of insoluble materials. Then, place the test jar and hydraulic fluid in
a heating bath, bring the temperature of the bath to 130±2.8 °C (266±5.0 °F), and hold at that temperature for one
hour. Remove the test jar of hydraulic fluid from the bath and allow to cool in air to room temperature. The test
hydraulic fluid shall be examined visually for sedimentation or separation of insoluble materials (see 3.6.2).
4.4.6 Appearance. Assess the appearance of the hydraulic fluid by filling a clear quart-sized bottle with the
hydraulic fluid and hold the sample in front of a strong light source. Inspect the hydraulic fluid for any cloudiness
or haziness. (see 3.6.3)
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or
order (see 6.2). When 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 hydraulic fluid is intended for use in shipboard hydraulic systems not requiring the use
of a fire-resistant hydraulic fluid.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number, and date of this specification.
b.
Military Symbol required (see 1.2).
c.
Quantity in gallons (litre).
d.
Packaging requirements (see 5.1).
e.
Material safety data sheet (see 6.7).
6.3 General. For purposes of determining conformance with these requirements, an observed value or
calculated value should be rounded off "to the nearest unit" in the last right-hand digit used in expressing the
specification limit, in accordance with the rounding-off method of ASTM E29, Standard Practice for Using
Significant Digits in Test Data to Determine Conformance with Specifications.
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