MIL-DTL-17111E
ASTM D974
- Standard Test Method for Acid and Base Number by
Color-Indicator Titration.
ASTM D1500
- Standard Test Method for ASTM Color of Petroleum
Products (ASTM Color Scale).
ASTM D2266
- Standard Test Method for Wear Preventive Characteristics
of Lubricating Grease (Four-Ball Method).
ASTM D4057
- Standard Practice for Manual Sampling of Petroleum and
Petroleum Products.
ASTM D4177
- Standard Practice for Automatic Sampling of Petroleum
and Petroleum Products.
ASTM D5621
- Standard Test Method for Sonic Shear Stability of
Hydraulic Fluids.
(Copies of these documents are available online at https://www.astm.org/ or from ASTM
International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.)
2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a
conflict between the text of this document and the references cited herein, the text of this document
takes precedence. Nothing in this document, however, supersedes applicable laws and regulations
unless a specific exemption has been obtained.
3. REQUIREMENTS
3.1 First article. When specified (see 6.2), a sample shall be subjected to first article
inspection in accordance with 4.3.
3.2 Performance requirements. The power transmission fluid shall satisfy the following
performance requirements.
3.2.1 Materials. The fluid shall consist of mineral oil products plus approved additive
materials for improving the finished product with respect to the anti-wear properties, viscosity-
temperature and lubricating characteristics, resistance to oxidation, and protection of metal parts
against corrosion.
3.2.1.1 Material exclusion. Tricresyl phosphate shall not be used in this fluid.
3.2.2 Suitability. The fluid shall be suitable for use in hydraulic systems involving
mechanical or fibrous type filters or centrifugal purification. It shall be noncorrosive to bearings
and hydraulic systems and shall not cause clogging of oil screens or valves. The fluid shall
remain homogeneous over the temperature range of -40 °C to 121 °C.
3.2.3 Physical and chemical requirements of base stock. The properties of the petroleum
base stock used in compounding the finished fluid shall conform to physical and chemical
requirements as shown in table I.
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