1、MIL-F- 81912 (AS) i4 February 1973 MILITARY SPECIFICATION FUEL, EXPENDABLE TURBINE ENGINE This specification has been approved by the Naval Air Systems Command, Department of the Navy. 1. SCOPE This specification covers one grade of aviation turbine fuel (See 6.1 2. APPLICABLE DOCUMENTS 2.1 The foll
2、owing documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of this speci- fication to the extent specified herein. STANDARDS Federal Fed. Test Method Std. No. 791 Lubricants, Liquid Fuels, and Related Products ; Methods of Testing . Military MIL-STD-1
3、05 Sampling Procedures and Tables for Inspection by Attributes MIL-STD-290 Packaging, Packing and Marking of Petroleum and Related Products (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement functions sho.uld be obtained fro
4、m the procuring activity or as directed by the contracting ozficer . ) a “ ,- . FSC 9130 Licensed by Information Handling ServicesMIL-F- 81912(AS) 2.2 Other mblcations. The following documents form a part of this specification to the extent specified herein. indicated, the issue in effect on date of
5、 invitation for bids or request for proposal shall apply. Unless otherwise American Society for Testing and Materials Publications ASTM Standards Parts 17 and 18 (Copies of ASTM publications may be obtained from the American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pennsylv
6、ania 19103 O 3.1 Materials. Except as otherwise specified herein, the fuel shall consist completely of hydrocarbon compounds. 3.2 Chrmical and phvsical requirements. The chemical and physical Requirements contained herein are not subject to corrections for test requirements of the finished fuel shal
7、l conform to those listed in Table I. tolerances. If multiple determinations are made, results falling within any specified repeatability and reproducibility tolerances may be averaged. TABLE I. Chemical and Physical Requirements and Test Methods. Test Method Standards Requirements Fuel ASTM Distill
8、ation: Initial boiling point fiel recovered, 10 percent min at Fuel recovered, 20 percent min at Fuel recovered, 50 percent min at Fuel recovered, 90 percent min at End point, rnax Residue, vol percent max Distillation loss, vol percent max Gravity OAFI - min (sp gr max) Gravity O API - rnax (sp gr
9、min) Existent gum, mg/100 ml rnax Total potential residue, 16 hour aging, Sulfw, total, percent weight rnax Mercaptan sulfur, percent weight max 2/ mg/ mi rnax D86 u - 2/ 400F ( 204 . AOC ) 142 142 36.0 (0.845) 48.0 (0.788) 7 14 0*4 o 001 D287 D287 D381 D873 D1266 Di219 or DI323 Licensed by Informat
10、ion Handling ServicesMIL-F-BL3L2 71 W 7779906 OLLObY2 3 W MIL-F-81912 (AS) a Freezing point, max -65OF (-540C) D2386 Heating Value: Viscosity, centistokes at - 600F (-5l.lOC) Aromatics, vol percent rnax Olefin, vol percent max Smoke point, mm min or luminometer No., min Explosiveness, percent rnax F
11、lash point, min Copper strip corrosion, (2hr at Water separation index, modified min Particulate matter, mg/liter, max Net heat of combustion, BTU/lb, min or aniline-gravity product, min 4/ rnax 212OF (lOOC), max 18,400 5,000 D240 D61-i and D287 12.0 25.0 5 -0 20 50 50 140F (60 . OC) No. 1 1.0 $5 D4
12、45 D1319 Di319 D1322 r/ Dl740 6/ D93 D130 D2550 D2276 &/ A condenser temperature of 32O 2/ To be reported - not limited 2/ The mercaptan sulfur determination may be waived at the option of the 4/ Aniline-gravity product is defined as the product of the gravity in r/ That portion of D1322 pertaining
13、to testing bottom fractions is not 6/ Test shall be performed in accordance with method li51 of Fed. Test to 400F (O0 to 4%) shall be used. inspector ,if the fuel is “doctor sweet“ when tested in accordance with the doctor test of ASTM D484 OAPI and the analine point in OF. applicable. Method Std. N
14、o. 791. 3.3 Antioxidants. The following active inhibitors shall be blended separately or in combination into the fuel in total- concentration not in excess of 8.4 pounds of inhibitor (not including weight of solvent) per 1,000 barrels of fuel (9.lg/100 gal (US), 24. mg/liter or 109 mg/gal (UK) in or
15、der to prevent the formation of gum: ( a) N ,Nt -diisopropyl-para-phenylenediamine (b) N ,N -disecondary butyl-para-phenylenediamine ( c) N, secondary butyl,“ -phenyl ortho-phenylenediamine (d) 2,kditertiary butyl-4.-methylphenol (e) 2,4-dimethyl-6-tertiary butylphenol ( f) 72 percent min. 2,4-dimet
16、hyl-6-tertiary butylphenol 28 percent max. monomethyl and dimethyl tertiary butyl- phenols (g) 55 percent min. 2,4-dimethyl-6-tertiary butylphenol i5 percent minr 2,6-ditertiary butyl-4-methylphenol 30 percent max. mixed monomethyl and dimethyl tertiary butylphenols (h) 2,6-ditertiary butylphenol 3
17、Licensed by Information Handling Services(i) 75 percent min. 2,6-ditertiary butylphenol (j) 60 percent min. 2,4-ditertiary butylphenol 25 percent max. mixed tertiary and tritertiary butylphenols 40 percent max. mixed tertiary butylphenols 3.4 Workmanshie. The finished fuel shall be visually free fro
18、m undissolved water, sediment, or suspended matter and shall be clean and bright at the ambient temperature or at 7WF, which ever is h2gher. 4. QUALITY ASSURANCE PROVISIONS 4.1 Resmnsib ilitv for inme ctiop. Unless otherwise specified in the contract or purchase order, the supplier is responsible fo
19、r the per- formance of all inspection requirements as specified herein. otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for performance of the inspection req-firements specified herein, unless disapproved by the Government, The Government r
20、eserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Except as 4.2 Quality conformance inmection. For acceptance purposes, in- dividual lots shall be examined
21、 as specified herein and subjected to tests for all requirements cited in section 3. 4.3 Inspection lot. 4.3.1 Bulk lot. A bulk lot shall consist of an indefinite quantity of a homogeneous mixture of material offered for acceptance in a single isolated container. 4.3.2 Packaged lot. A packaged lot s
22、hall consist of an indefinite number of 55-gallon drums or smaller unit packages of identical size and shape offered for acceptance and filled from one isolated tank con- taining a homogeneous mixture of material. 4.4 Sampling. 4.4,l Sampling for verification of product qualitj. Each bulk or package
23、d lot of material shall be sampled for verification of product quality in accordance with ASIM method D270. If the sample for tests fails any of the quality conformance tests, the inspection lot shall be rejected, 4 Licensed by Information Handling ServicesMIL-F-1712 71 m 7777406 01106114 7 m - MIL-
24、F-819 12 ( AS) 4.4.2 Sampling for examination of filled containers for delivery. A random sample of filled containers shall be selected from each lot in accordance- with MIL-STD-105 at inspection level II and acceptable quality level (AQL) of 2.5 percent defective. accordance with 4.6.3. The samples
25、 shall be examined in 4.5 Inspection. Inspection shall be performed in accordance with method 9601 of Fed. Test Method STD. No. 791 4.6 Examinations. 4.6.1 Examination of product. Samples selected in accordance with 4.4.1 shall be visually examined for compliance with 3.4. 4.6.2 Examination of empty
26、 containers. Prior to filling, each empty unit container shall be visually inspected for cleanliness and suitability. 4.6.3 Examination of filled containers. Samples taken as specified in 4.4.2 shall be examined for conformance to MIL-STD-290 with regard to fill, closure, sealing, leakage, packaging
27、, packing, and marking require- ments. Any container having one or more defects or under the required fill shall be rejected. tainers exceeds the acceptance number for the appropriate plan of MIL-STD-105, the lot represented by the sample shall be rejected. If the number of defective or underfilled
28、con- 4.7 Test methods. Tests to determine conformance to chemical and physical requirements shall be conducted in accordance with ASTM standards, using the applicable methods as listed in Table I. 5. PREPARATION FOR DELIVERY 5.1 Packanina. packinp. and marking. Packaging, packing, and marking shall
29、be in accordance with MIL-STD-290. 6. NOTES 6.1 Intended use. The fiel covered by this specification is in- tended for use in gas turbine engine powered missiles. 6.2 Ordering Data. Procurement documents should specify: (a) Title, number, and date of this specification (b) Quantity required and size containers desired (c) Level of packaging and packing required (Ses 5.1) . Project No. ,913O-NO66 5 * U. S. GOVERNMENT PRINTING OFFICE: 1973-7$d?/4047 I Licensed by Information Handling Services
