1. Scope-This SAE Standard covers three styles of reinforced hose for conveying gasoline or diesel fuel aboard small craft including pleasure craft whose fuel systems are regulated under 33 CFR 183 Subpart J.
2. References
2.1 Applicable Documents-The following publications form a part of this specification to the extent specified herein. The latest issue of SAE publications shall apply.
2.1.1 SAE PUBLICATIONS-Available from SAE, 400 Commonwealth Drive, Warrendale,
PA 15096-0001.
SAE J516-Hydraulic Hose Fittings
SAE J517-Hydraulic Hose
2.1.2 ASTM PUBLICATIONS-Available from ASTM,
1916 Race Street,
Philadelphia, PA 19103.
ASTM D 380-Methods of Testing Rubber Hose
ASTM D 413-Test Methods for Rubber Property-Adhesion to Flexible Substrate
ASTM D 471-Test Method for Rubber Property-Effect of Liquids
ASTM D 573-Test Method for Rubber-Deterioration in an Air Oven
ASTM D 1149-Test Method for Rubber Deterioration-Surface Ozone Cracking in a Chamber,(Flat Specimens)
2.1.3 FEDERAL REGULATION-Available from the Superintendent of cuments, U.S. Government Printing Office, Washington, DC 20402.
33 CFR 183-Code of Federal Regulations： Navigation and Navigable Waters
3. Hose Construction
3.1 Style R1-The construction of this hose embodies a smooth bore fuel and oil resistant tube, reinforced with one or more plies of lexdle fibes yarn, cord or fabric, and finished with a suitable oil, ozone, and heat-resistant cover. For Class 1 service, covers or sleeves having a lower permeation rate than the tube shall be pin-pricked.
3.2 Style R2-The construction of this hose embodies a smooth bore fuel and oil resistant tube, a helical wire imbedded in the hose, and finished with a suitable oil, ozone, and heat-resistant cover. Plies of fabric or cord may be applied between the tube or cover and the helical wire.
3.3 Style R3-The construction of this hose embodies a smooth bore fuel and oil resistant tube, reinforced with one or more braids of wire, and finished with a suitable oil, ozone, and heat-resistant cover. These hoses shall be used with end fittings complying with SAE specification J516-100R5.
4. Dimensions and Tolerances-The applicable dimensions and tolerances for style R1 and R2 are shown in Tble 1. The dimensions and tolerances for style R3 shall comply with the SAE J517-100R5 specification.
5. Flammability-Quarter-inch-wide strips cut longitudinal from the cover, which have been removed from the hose, shall be used for this test. A bunsen burner shall be used to start burning of the strips until approximately 12.7 mm (1/2 in) of the strip is burning vigorously. Remove the burning strip from the flame and hold it horizontally with the outside facing upward. The flame shall be self-extinguishing within 60 s. The average time of at least six determinations shall be used. The test shall be conducted in a draft-free atmosphere.
6. Fire Resistance-Two types of hose with respect to fire resistance are covered by this document. 33 CFR 183 Subpart J requires certain fuel hoses to provide a minimum 2-1/2 min of fire resistivity. Hose exhibiting no leakage after the following test procedure is designated USCG Type A. Hose not subjected to the following test is designated USCG Type B.
6.1 Principle -The hose, including its couplings if applicable, filled with N Heptane, is subjected to a flame for 2-1/2 min, then to a hydraulic pressure test, after which it shall show no leakage.
6.2 Sampling-Three hose samples shall be tested in turn without showing leakage.
6.3 Equipment-Test equipment shall be utilized as shown in Figure 1.
Thermocouples shall be located in the same horizontal place as the sample, at a distance of 12 mm (0.5 in )from the surface of the hose and 25.4 mm(1 in)from the end of the hose.
The fuel pan shall be a straight-sided container with minimum width, length, and depth dimensions of 355 mm(14 in)×355 mm(14 in) ×40 mm(1.5 in).
6.4 Test Procedure-If the hose is intended to be delivered with couplings, at least one of the couplings shall be located direcly above the fuel pan.
