1、Comments, suggestions, or questions on this document should be addressed to Defense Supply Center Richmond, ATTN: DSCR-VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616 or e-mailed to STDZNMGTdla.mil. Since contact information can change, you may want to verify the currency of this address
2、information using the ASSIST database at https:/assist.daps.dla.mil. AMSC N/A FSC 6850 METRIC MIL-PRF-6864F 1 June 2010 SUPERSEDING MIL-PRF-6864E 18 May 2005 PERFORMANCE SPECIFICATION CLEANING COMPOUND, SOLVENT, OIL COOLER This specification is approved for use by all departments and agencies of the
3、 Department of Defense. 1. SCOPE 1.1 Scope. This specification covers one type of oil cooler solvent-type cleaning compound. The oil cooler cleaning compound solvent described herein is intended for cleaning either copper or aluminum-alloy aircraft oil coolers. 2. APPLICABLE DOCUMENTS 2.1 General. T
4、he documents listed in this section are specified in sections 3 and 4 of this specification. 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
5、this list, document users are cautioned that they must meet all specified requirements of the documents cited in sections 3 and 4 of this specification, whether or not they are listed. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6864F 2 2
6、.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks 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 (see
7、6.2). DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-A-8625 - Anodic Coatings for Aluminum and Aluminum Alloys. MIL-D-16791 - Detergents, General Purpose (Liquid, Nonionic). MIL-PRF-680 - Degreasing Solvent. (Copies of these documents are available online at https:/assist.daps.dla.mil or from the Standard
8、ization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 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 solicitat
9、ion or contract (see 6.2). THE ALUMINUM ASSOCIATION International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys (Copies of this document are available online at http:/www.aluminum.org or from The Aluminum Association, 1525 Wilson Boulevard, Arlin
10、gton, VA 22209.) ASTM INTERNATIONAL ASTM B 21 - Standard Specification for Naval Brass Rod, Bar, and Shapes. ASTM B 187 - Standard Specification for Copper, Bus Bar, Rod, and Shapes and General Purpose Rod, Bar, and Shapes. ASTM B 272 - Standard Specification for Copper Flat Products with Finished (
11、Rolled or Drawn) Edges (Flat Wire and Strip). ASTM D 92 - Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester. ASTM D 97 - Standard Test Method for Pour Point of Petroleum Products. ASTM B 209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate. ASTM D 46
12、0 - Standard Test Methods for Sampling and Chemical Analysis of Soaps and Soap Products. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6864F 3 ASTM D 3699 - Standard Specification for Kerosine. (Copies of these documents are available onlin
13、e at http:/www.astm.org/ or from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.) INSTITUTE FOR INTERCONNECTING AND PACKAGING ELECTRONIC CIRCUITS (IPC) IPC J-STD-006 - Requirements for Electronic Grade Solder Alloys and Fluxed and Non-fluxed Solid Solders
14、for Electronic Soldering Applications. (Copies of these documents are available online at http:/www.ipc.org/ or from the Institute for Interconnecting and Packaging Electronic Circuits, 2215 Sanders Road, Northbrook, IL 60062-6135.) SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) SAE J1966 - Lubricating Oil,
15、Aircraft Piston Engine (Nondispersant Mineral Oil). SAE AMS-QQ-A-250/4 - Aluminum Alloy 2024, Plate and Sheet. (Copies of these documents are available online at http:/www.sae.org/ or from the Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096-0001.) 2.4 Order of precedenc
16、e. 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.
17、 When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2. 3.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the ma
18、terial meets or exceeds the operational and maintenance requirements and promotes economically advantageous life cycle costs. 3.3 Materials. The cleaning compound shall be a single-phase liquid. It shall be free of silicates (except for ethyl silicate when used as a corrosion preventative) as well a
19、s abrasives, inorganic acids, cyanides, inert fillers, and undissolved material. It shall conform to the applicable requirements as specified herein. 3.4 Toxicity. The material shall contain no compounds whose degree of hazards has not been appraised nor any combination of materials that might be ha
20、zardous to health when used in accordance with the manufacturers recommendations. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6864F 4 3.5 Quantitative requirements. The cleaning compound shall conform to the following requirements when te
21、sted as specified in 4.4: 3.5.1 Moisture content. The moisture content shall be a maximum of 3.0 percent by weight (see 4.4.1). 3.5.2 Specific gravity. The specific gravity at 25/25 C shall be a minimum of 1.20 (see 4.4.2). 3.5.3 Flash point. The flash point shall be a minimum of 26.7 C (see 4.4.3).
22、 3.5.4 Pour point. The pour point shall be a minimum of -29.0 C (see 4.4.4). 3.5.5 Hydrogen ion concentration (pH). The pH in a 1 percent solution, dispersed in water, shall be between 9.3 and 10.0 (see 4.4.5). 3.6 Solubility. The compound shall be soluble to the extent that clear solutions shall fo
23、rm at room temperature when 10 milliliters (mL) portions of the compound are added to 90 mL of dry cleaning solvent, kerosine, and mineral spirits, respectively (see 4.4.6). 3.7 Emulsifiability. A 4 percent by volume mixture of cleaning compound with water shall form a stable emulsion that shall sho
24、w no separation or creaming for at least 6 hours (see 4.4.7). 3.8 Corrosion. The cleaning compound shall cause no visible trace of corrosive attack, oxidation, or discoloration when specimens of copper tubing, brass alloy, soldered ends of copper tubing, polished aluminum alloy, and anodized aluminu
25、m alloy are immersed (see 4.4.8). 3.9 Water tolerance. The cleaning compound shall remain clear and show no thickening when diluted with water equal to 25 percent of its volume (see 4.4.9). 3.10 Carbon removal. The cleaning compound shall show ability and rate of loosening carbon equal to or greater
26、 than that of the control formula (see 4.4.10.2). 3.11 Lacquer removal. The cleaning compound shall effect the removal of hot oil lacquers equal to or better than the control formula (see 4.4.10.3.3). 3.12 Effect on Heresite. The cleaning compound shall show no signs of softening, blistering, or rem
27、oval of Heresite coated surfaces (see 4.4.10.4). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6864F 5 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First artic
28、le inspection (see 4.2). b. Conformance inspection (see 4.3). 4.2 First article inspection. When required (see 6.2), first article inspection shall consist of all of the tests in section 4.4 of this specification. Failure of any test to meet the requirement in section 3 shall be cause for rejection.
29、 The first article sample shall consist of at least 2 liters selected at random from the cleaning compound solvent manufactured or used for filling the contract. 4.3 Conformance inspection. Conformance inspection shall be performed in accordance with inspection provisions set forth herein. The chara
30、cteristics shown in 3.3 through 3.12, when tested in accordance with 4.4, shall constitute minimum inspections to be performed by the supplier prior to government acceptance or rejection of the material. 4.4 Test methods and procedures. 4.4.1 Moisture content. The moisture content of the cleaning co
31、mpound shall be determined in accordance with ASTM D 460. A 25-gram sample of the cleaning compound shall be used to make the determination. 4.4.2 Specific gravity. The specific gravity of the cleaning compound shall be determined by a suitable hydrometer at 25/25 C. 4.4.3 Flash point. The flash poi
32、nt of the cleaning compound shall be determined in accordance with ASTM D 92. 4.4.4 Pour point. The pour point of the cleaning compound shall be determined in accordance with ASTM D 97. 4.4.5 Hydrogen ion concentration (pH). The pH of the specified cleaning compound dispersion shall be determined wi
33、th a suitable pH meter. 4.4.6 Solubility. Ten mL of cleaning compound shall be placed into each of three 100-mL graduated cylinders having ground glass stoppers. To the three cylinders, in consecutive order, add 90 mL of degreasing solvent conforming to type I or II of MIL-PRF-680, 90 mL of kerosine
34、 conforming to ASTM D 3699, and 90 mL of mineral spirits conforming to type III of MIL-PRF-680. Each cylinder shall be stoppered, shaken thoroughly, and the contents examined for conformance to the requirements of 3.6. 4.4.7 Emulsifiability. Four mL of the cleaning compound shall be placed into a 10
35、0-mL glass-stoppered graduated cylinder and diluted to 100 mL by adding distilled water. The cylinder containing the solution shall be stoppered, shaken vigorously for 30 seconds, and allowed to Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF
36、-6864F 6 remain undisturbed at room temperature for 6 hours. The contents shall then be examined for conformance to the requirements of 3.7. 4.4.8 Corrosion. Approximately 1 liter of the cleaning compound shall be placed in a 1-liter wide mouth glass bottle having an air-proof seal. Specimens listed
37、 in table I shall be suspended out of contact with each other and completely immersed in the compound. The bottle shall be sealed and maintained at 25 C for 24 hours. At the end of the specified time, the specimens shall be removed, rinsed with several portions of dry cleaning solvent conforming to
38、MIL-PRF-680 until the surfaces are free of adhering cleaning compounds, and visually examined for conformance to the requirements of 3.8. TABLE I. Corrosion test specimens. Specimen Requirements Copper tubing Conforming to ASTM B 187 Brass alloy Conforming to ASTM B 21 Copper tubing Conforming to AS
39、TM B 187, whose ends have been soldered with solder conforming to IPC J-STD-006, Comp Sn50 Polished aluminum alloy 6951 aluminum conforming to Aluminum Association specification Aluminum alloy 2024 aluminum conforming to ASTM B 209, SAE AMS-QQ-A-250/4 or Aluminum Association specifications, anodized
40、 in accordance with MIL-A-8625 4.4.9 Water tolerance. Seventy-five mL of the cleaning compound shall be placed into a 100-mL glass-stoppered graduated cylinder and diluted to 100 mL by adding distilled water in 5 mL quantities, agitating between each addition. After each addition and agitation, the
41、contents shall be examined for conformance to the requirements of 3.9. 4.4.10 Performance. 4.4.10.1 Control formula. The control formula to be used as a standard of comparison for judging the performance of the manufacturers product shall be compounded in strict conformance with table II. TABLE II.
42、Control formula. Ingredient Percent by weight 95 percent ethyl alcohol 10 Cresol USP 10 Methylene chloride 70 Potassium oleate 8 Wetting agent (Polyethyleneglycol monalkylarylether conforming to MIL-D-16791) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
43、IHS-,-,-MIL-PRF-6864F 7 4.4.10.2 Carbon removal. A used and thoroughly carbon covered tube from an approved oil cooler shall be placed in a suitable test tube. A sufficient amount of the cleaning compound under test shall be added to the test tube to totally immerse the test oil cooler tube. The tes
44、t tube shall be stoppered and placed in a rack without shaking. Another tube from the same oil cooler shall be similarly treated using the control formula product. After soaking for 30 minutes, both oil cooler tubes shall be removed and rinsed under running tap water. If the carbon has not been remo
45、ved sufficiently to make a satisfactory comparison, the 30 minute soaking and rinsing procedure shall be repeated and a visual comparison shall again be made to determine conformance to the requirements of 3.10. 4.4.10.3 Lacquer removal. 4.4.10.3.1 Preparation of test oil. Prepare a quantity of test
46、 oil, sufficient for performance of this test, by heating oil conforming to specification SAE J1966 at 149 C for 1,000 hours while providing constant stirring. 4.4.10.3.2 Preparation of test panels. Two 20 mm X 100 mm X 0.6 mm panels composed of polished copper conforming to ASTM B 272 shall be clea
47、ned by boiling for 1 minute in chemically pure (c.p.) isopropanol and 1 minute in c.p. methylethyl ketone (MEK). Four drops (approximately 8 mg) of test oil shall be evenly placed on one face of each test panel using a clean plastic spatula to uniformly distribute the oil over the entire face of the
48、 test panel. The panels shall then be placed horizontally in a muffle furnace that has been preheated to 316 C for 10 minutes. The panels shall then be removed, cooled to room temperature, and stored in a desiccator until needed. 4.4.10.3.3 Procedure. One panel shall be placed in a 25 mm X 200 mm te
49、st tube containing 30 mL of the cleaning compound under test. The second panel shall be placed in a similar test tube containing 30 mL of the control formula. The tubes shall be corked, sealed by taping, and clamped in a double burette clamp. A horizontal shaft shall connect the burette clamp to an electric stirring apparatus fastened to a ring stand. The tubes shall be rotated at 60 to 65 rpm for 15 minute
