0005_Attachment_1_C&E_QAPS.pdf

DEFENSE LOGISTICS AGENCY ENERGY

8725 JOHN J KINGMAN ROAD

FORT BELVOIR, VIRGINIA 22060-6222

C16.63 LUBRICATING OIL, STEAM TURBINE AND GEAR (MS-2190 TEP) (LTL) (A QUALIFIED PRODUCT) (DLA

ENERGY NOV 2018)

(a) Steam turbine lubricating oil shall conform to the requirements of specification MIL-PRF-17331K(SH) dated May 7, 2013, as modified below:

(1) The lubricating oil shall be currently as cited in the Qualified Products Database (QPD). To access the information listed in QPD-17331, link to the Assistdocs website at quicksearch.dla.mil

(2) The lubricating oil shall not utilize silicone-based antifoaming agents at time of delivery.

(3) The lubricating oil shall meet the following Thermal Stability requirements using the most recent revision of ASTM

D2070. This test is not a part of conformance testing and is not required on every batch. Results shall be supplied prior to award:

Characteristic Requirement (max) Copper appearance, visual R Steel appearance, visual R Sludge, mg/100mL 25

(R= report value)

(4) The lubricating oil shall meet a minimum Oxidation by Rotating Pressure Vessel results using the most recent revision of ASTM D2272 of 300 minutes to failure. Results shall be supplied prior to award.

(5) The lubricating oil shall meet the oxidation test result requirements listed in Table I of MIL-PRF-17331K after 1500 hours. This test is not a part of conformance testing and is not required on every batch. Results shall be supplied prior to award.

(6) The lubricating oil shall meet Coking Tendency requirements as described in “Panel Coker Test Method for Determining Coking Tendency of MIL-PRF-17331 Lubricating Oil” (attached).

(7) The lubricating oil shall meet a minimum flash point result using the most recent revision of ASTM D93 of 204oC or the most recent revision of ASTM D92 of 234 oC. Results shall be supplied prior to award.

a) ASTM D93 shall be the referee method for the flash point requirement.

(b) SPECIFICATION DEVIATIONS/MODIFICATIONS.

(1) Anti-foam and Demulsifier Additive Tolerance Range: In order to meet specification properties, a tolerance range may be used for both the anti-foam and demulsifier additives versus the exact concentration used at qualification. In order to elect to use a tolerance range, the Contractor must officially submit this request prior to contract award to NAVSEA qualification activity for approval.

(2) Foam Testing (ASTM D892): The use of Option A in ASTM D892 is only allowed if the oil has been blended for at least a week and results are not being used to meet testing requirements at origin. This could include those oils that are being tested at destination or for MIL-STD-3004 requirements.

(3) Paragraph 4.3.1.d of specification MIL-PRF-17331K(SH) dated May 7, 2013 is modified to change the tolerance required of Pour Point to +3°C

(c) QUALIFICATION.

(1) Paragraph 4.2 of specification MIL-PRF-17331K(SH) dated May 7, 2013 applies.

(2) Contact with Naval Sea Systems Command (NAVSEA) is required prior to any qualification or requalification testing. Detailed information on qualification procedures is available from:

COMMANDER NAVAL SEA SYSTEMS COMMAND

ATTN: SEA 05S

1333 ISAAC HULL AVENUE, SE

STOP 5160

WASHINGTON NAVY YARD, DC 20376-5160

DISTRIBUTION STATEMENT – A: APPROVED FOR PUBLIC RELEASE. DISTRIBUTION IS UNLIMITED

PANEL COKER TEST METHOD FOR DETERMINING

COKING TENDENCY OF MIL-PRF-17331 LUBRICATING OIL

A.1. SCOPE

A.1.1 Scope. The panel coker test method, which is based on a modification of method 3462 of Federal Test Method Standard No. 791, is used for determining the tendency of finished oils to form coke (solid decomposition products) when in contact with surfaces at elevated temperatures for relatively short periods. It consists of mechanically splashing the oil for 4 hours against an aluminum test panel heated to 330 °C (626 °F) and determining the weight of coke deposited on the surface of the plate. This Appendix is a mandatory part of the specification.

The information contained herein is intended for compliance.

A.2 APPLICABLE DOCUMENTS

A.2.1 General. The documents listed in this section are specified in this appendix. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in this appendix, whether or not they are listed.

A.2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

ASTM INTERNATIONAL

ASTM B209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

(Copies of these documents are available online at www.astm.org.)

FEDERAL TEST METHOD (FTM) STANDARD

FTM-791-3462 - Coking Tendencies of Lubricating Oils

(Copies of this document are available online at http://www.falexint.com.)

A.3 TEST METHOD

A.3.1 Summary. A test panel of aluminum conforming to ASTM B209 is polished to a dull luster finish, washed in Mineral Spirits, and weighed to the nearest milligram. The test panel is then mounted, polished side down, onto the coker panel test apparatus, preheated to 330 °C (626 °F), and the test apparatus splasher is started at 1000±50 rpm for 4 hours. At the end of the 4-hour test period, the test panel is washed with Mineral Spirits, dried, and reweighed. The weight of coke deposited on the test panel is then recorded as the oil’s coking tendency.

A.3.2 Purpose. In-service MIL-PRF-17331 lubricating oil may be exposed to localized elevated temperatures when used in systems containing electric lube oil heaters. Historical experience has demonstrated a propensity for coking and thermal cracking to occur under certain conditions. This test method will be used to assess the tendency of a qualifying formulation towards the formation of coking deposits.

A.4 TEST APPARATUS

A.4.1 Guidelines. The general guidelines for the design of a satisfactory panel coker test apparatus are provided in the following figures. Customization of these requirements is permitted provided that the material and dimensional test setup requirements depicted on figures A-1 through A-3 are met.

FIGURE A-1. Test setup.

31.24 37.08

87.63

43.69

6.10

THERMOCOUPLE WELL 3.05

1.02 DIA SURFACE GRIND

DIMENSIONS IN MILLIMETERS

TOLERANCE: ±0.25

MATERIAL: ALUMINUM ALLOY (ASTM B209)

FIGURE A-2. Test panel.

TABLE LEVEL

12.70 12.70

DIMENSIONS IN MILLIMETERS

TOLERANCE: ±0.25

MATERIAL: STAINLESS STEEL. 1.57 STOCK THICKNESS

FIGURE A-3. Splash chamber.

A.5 TEST PROCEDURE

A.5.1 Preparation of test panel. The test panel shall be prepared as follows:

a. Polish the ground surface of the test panel (figure A-2) to a dull luster finish using No.1 metallurgical emery paper. Wash the test panel in Mineral Spirits, dry, and weigh to the nearest milligram.

b. Mount the test panel onto the panel coker test apparatus and preheat the test panel to 330±2 °C (626 ±5 °F).

Fill the oil reservoir with 350 milliliters of test oil. Start the oil splasher at 1000±50 rpm and run the test apparatus for 4 hours.

c. At the end of 4 hours, secure the oil splasher and remove the test panel from the test apparatus, being careful that none of the deposits are accidentally removed from the test panel. Photograph the test panel.

Carefully remove any coke deposits from the edges of the panel and then rinse with several portions of Mineral Spirits. Air dry the panel and then reweigh to the nearest milligram.

d. Record the coking tendency as the difference in weight, in milligrams, between the new and used test panel.

WELD OR SOLDER

61.47 25°

6.35 6.35