MIL-PRF-17331K(SH)
3.7 Toxicity. When evaluated in accordance with 4.4.3 [the Health Hazard Assessment (HHA)], the lubricating
oil shall have no adverse effect on the health of personnel when used for its intended purpose (see 4.4.3 and 6.7).
3.8 Off-gassing. The lubricating oil shall be tested for off-gassing in accordance with the requirements of
4.4.2. The Navy will review the results and assign a usage category. The required usage category is "Permitted" or
3.9 Ozone depleting substances (ODS). The use of ODS in the composition of the lubricating oil under this
specification directly or referenced in any federal test method is hereto prohibited. Environmentally safe and
non-ODS alternative solvents shall be substituted in test methods for any previously specified ODS such as
1,1,1-trichloroethane, tri-chlorofluoroethane, perchloroethane, or other chlorofluorocarbons (CFC). A dehydrated
mixture of primary alcohol such as ethanol or isopropyl alcohol and non-aromatic hydrocarbon solvent resulting in a
minimum flash point of 60 °C (140 °F) plus adequate solvent action shall be used as an alternative for any ODS.
3.10 Tri-cresyl phosphate (TCP). If TCP is used as an antiwear additive, not more than 1.0 percent of the
additive shall be the ortho isomer (see 6.8.2).
3.11 2,6-Di-tert-butylphenol (DTBP). The addition of DTBP (Chemical Abstract Service Number 128-39-2) in
any lubricating oil produced under the military symbol 2190 and NATO symbol 0-250 is prohibited; this applies to
both surface ships and submarine use. DTBP shall not be intentionally added to the oil. The level of DTBP, if
detected, shall not exceed 10 parts per million (see 4.4.4).
3.12 Appearance. The lubricating oil shall be free of haze or cloudiness (see 4.4.6).
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a.
Qualification inspection (see 4.2).
b.
Conformance inspection (see 4.3).
4.2 Qualification inspection. Qualification tests shall be conducted at a laboratory acceptable to NAVSEA.
Qualification inspection shall consist of all of the tests specified herein to satisfy the requirements in section 3 and
table I. A minimum sample size of 30 gallons is required for qualification testing.
4.2.1 Change approval. A change in product composition, formulation, or ingredients used in the manufacture
of lubricating oil, which has been qualified, shall require written approval of NAVSEA. Incorporation of any
changes, which have not been so approved, shall require requalification of item in question.
4.2.1.1 Requalification. Unless otherwise approved by NAVSEA, requalification shall consist of the tests
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