1、IINC“DI MI L-H- 22240F ( SH) AMENDMENT 1 15 February 1989 MILITARY SPECIFICATION HOSE, RUBBER, PETROLEUM BASED FUELS AND WATER SERVICES, DISCHARGE ONLY, SMOOTH BORE, LIGHTWEIGHT BUOYANT TYPE This amendment forms a part of Military Specification MIL-H-22240F(SH), dated 22 March 1988, and is approved
2、for use by the Naval Sea Systems Command, Department of the Navy and is available for use by all Departments and Agencies of the Department of Defense., PAGE 2 2.1.1: Delete “TT-S-735 - Standard Test Fluids, Hydrocarbon.“ PAGE 3 2.2: Under the American Society for Testing and Materials (ASTM); add:
3、ID471 - Rubber Property - Effect of Liquids, Test Method for. (DoD adopted) II 3.1, Line 4: Delete “friction“ and substitute “skim or friction“. PAGE 4 3.3, Last line: Delete “inspected“ and substitute specified.“ 3.6, Lines 3 and 4: per foot . I Delete “1 degree per foot“ and substitute “0.5 degree
4、s PAGE 5 3.9.1: Delete and substitute: “3.9.1 Tube and friction. The rubber used in the tube and friction shall be a copolymer of butadiene and acrylonitrile. The tube shall be smooth, free of seams with any significant depth profile, and shall be of uniform thickness. Minor tube seams, if present,
5、shall have rounded edges and root, shall exhibit no evidence of delamination or disbonding of tube component layers and shall have the minimum specified tube thickness. Mandrel marks or scores present in the tube must exhibit a good molded appearance and indicate no evidence of tearing. A few indent
6、ations arising from air entrapment between mandrel and tube may be accepted provided such minor indentation has rounded edges and root, is not deeper than 10 percent of the minimum tube thickness, is firm and has full tube thickness.“ AMSC N/A Page 1 of 3 FSC 4720 DISTRIBUTION STATEMENT A. Approved
7、for public release; distri bution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_I- _- Cover 1600 350 30 800 200 .* Friction Record Record 30 Record Record flIL-H-22240F (I) 47 m 77777Oh 04h3508 T m MIL-H-22240F( SH) AMENDMENT 1 PAGE.
8、 6 TABLE III: Delete and substitute: Requirements for rubber components in the hose. “TABLE III. 1450 250 ni tia1 properties: Tensile strength, lb/in2, min L Ultimate elongation, percent, min Adhesion, 1 b/in, min Properties after immersion in test fluid: Tensile strength, lb/inL, min Ultimate elong
9、ation, percent, min Volume increase, percent, max (no shrinkage permitted) Adhesion, lb/in, min Properties after oven aging: Tensile strenath, lb/inL, min i timate elongation ,. percent, min Nonvolatile extract from tube, percent max Phosphate plasticizer in tube, qualitative determination Resistanc
10、e of cover to ozone Specific gravity Durometer hardness Tu be 2300 300 30 1400 200 30 20 2000 250 3.0 Absent - Record Record PAGE 8 4.4, Line 2: Delete “4.7“. 4.4.1.1: Delete and substitute: Test paragraph 4.8.11.1 4.8.11.1 4.8.11.5 4.8.11.2 4.8,ll.Z 4.8.li.4 4.8.11.6 4.8.11.3 4.8.11 , 3 4.8.11.7 4.
11、8.11.8 4.8.11.9 4.8.11,ll 4.8.11.12“ “4.4.1.1 Visual examination. The exterior surfaces, interior surfaces, and ends shall be examined for visual defects described in FED-STD-162 and 3.9.1. A borescope shall be used to inspect the hose tubes. Any hose containing major or critical defects shall be re
12、jected. Hose branding and marking shall be examined for conformance to 3.11. or branded shall be rejected. Hose incorrectly marked Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-H-2224OF (1) 47 777770b OLtb3507 L MIL-H-22240F( SH) AMENDMENT 1
13、4.5.1, Last sentence: Delete “specified in 4.7, 4.8.1, 4.8.2, 4.8.3, 4.8.4, 4.8.6 and 4.8.7 and substitute “specified in 4.4.1.1, 4.8.1, 4.8.2, 4.8.3, 4,8.4, 4.8.6 and 4.8.7. PAGE 10 4.7: Delete last sentence in its entirety. PAGE 11 4.8.10, Line 3 and 4: “reference fuel B of ASTM 0471.“ Delete “typ
14、e III fluid of TT-S-735“ and substitute 4.8.11.2: Delete and substitute: “4.8.11.2 Tensile properties after immersion. The tensile strength and ultimate elonaation after immersion in Reference Fuel B of ASTM D 471 shall be determined-in accordance with ASTM D 471, using specimens cut with die C of A
15、STM D 412. The thickness of the die C specimens shall be 0.080 t 0.010 inches. 3.6OF for 46 - t 1/4 hours.“ The specimens shall be immersed in fuel at a temperature of-73.40 - t PAGE 12 4.8.11.4: Delete and substitute: “4.8.11.4 Volume change after immersion. The change in volume in percent of the o
16、riginal volume after immersion in Reference Fuel B of ASTM D 471, shall be determined on specimens of the tube, cover, and friction prepared and tested in accordance with ASTM D 471. temperature of 73.4O - + 3.60 F for 46 + 1/4 hours.“ The specimens shall be immersed in fuel at a 4.8.11.6, first sen
17、tence: substitute “reference fuel B of ASTM D471.“ Delete type III fluid of TT-S-735“ and 4.8.11.6, last line: Delete “fluid“ and substitute “fuel“. 4.8.11.7.2, line 3: “reference fluid A of ASTM D471.I Delete “type I fluid of TT-S-735 and substitute 4.8.11.7.2, line 7: Delete “type I fluid“ and substitute reference fuel A“. Review Activity: DLA-CS Preparing Activity: (Project No. 4720-N044) NAVY - SH Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
