SAE-J2405-1997-R2007.pdf
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1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefr
2、om, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2007 SAE International All rights reserved. No part of this publication may
3、 be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER:Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fa
4、x: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS:http:/www.sae.org SURFACE VEHICLE STANDARD J2405 REAF. JUL2007 Issued1997-08 Reaffirmed2007-07 Superseding J2405 AUG1997 Low-Permeation Fuel Fill and Vent Tube 1.ScopeThis SAE Standard covers the minimum requirements for a low-permeation
5、tubing (100 g/m2day or less) for use as a low pressure (14.5 kPa) liquid- or vapor-carrying component for use in gasoline or diesel fuel filler, vent, and vapor systems. The construction shall be designed to be functional over a temperature range of 40 C to 100 C for the T1 designation, or 40 C to 1
6、25 C for the T2 designation. 1.1RationaleReviewed by SAE Non-Hydraulic Hose Committee and reinstated without change. 2.References 2.1Applicable PublicationsThe following publications form a part of the specification to the extent specified herein. Unless otherwise indicated the latest revision of SA
7、E publications shall apply. 2.1.1SAE PUBLICATIONAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J1737Recommended Practice for Measurement of Permeation Resistance by the Recirculation Tec
8、hnique 2.1.2ASTM PUBLICATIONSAvailable from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM D 380Methods of Testing Rubber Hose ASTM D 413Test Methods for Rubber Property: Adhesion to Flexible Substrate ASTM D 471Test for Rubber Property: Effect o
9、f Liquids ASTM D 1149Test Method for Rubber Deterioration: Surface Ozone Cracking in a Chamber (Flat Specimens) 2.2Related PublicationsThe following publications are provided for information purposes only and are not a required part of this document. SAE J2405 Reaffirmed JUL2007 -2- 2.2.1SAE PUBLICA
10、TIONSAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J30Fuel and Oil Hoses SAE J1645Fuel System Electrostatic Charge SAE J1681Gasoline/Methanol Mixtures for Material Testing SAE J2260Nonm
11、etallic Fuel System Tubing With One or More Layers 2.2.2ASTM PUBLICATIONSAvailable from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM D 257DC Resistance or Conductance of Insulating Materials ASTM D 412Test for Rubber Properties in Tension ASTM
12、D 573Test for Rubber: Deterioration in an Air Oven 2.2.3RMA PUBLICATIONAvailable from Rubber Manufacturers Association, 1400 K Street, NW, Suite 900, Washington, DC 20005, Tel: 202-682-4800, www.rma.org. RMA IP-2Method for Measuring Electrical Resistance of Hose 3.ConstructionThe construction typica
13、lly consists of a smooth bore or laminated tube of one or more synthetic rubber compound(s) and/or thermoplastic material(s) resistant to chemical attack, swelling, and permeation by gasoline, alcohol extended gasoline, or diesel fuel. It may also be covered with a suitable oil, ozone, and heat-resi
14、stant synthetic rubber compound or thermoplastic. The specific construction details are to be agreed between the supplier and the original purchaser. 4.Dimensions 4.1The ends of the tube shall be square within 3.0 mm for sizes up to but excluding 25.4 mm ID, 6.4 mm for sizes 25.4 mm through 50.8 mm
15、ID, and 9.5 mm for sizes over 50.8 mm ID. Reference Table 1. 4.2When tubing is supplied in specific cut or long lengths, the length tolerances shall be as in Table 2. 4.3End squareness shall be measured as the angle between a plane intersecting the long and short extremes of the tube end and a plane
16、 perpendicular to the tube axis. The allowable maximum out-of-squareness is specified in Table 1. 5.When a tube is supplied as a preformed item, the tolerance shall be as follows: 5.1Squareness of EndsThe tolerance on squareness of ends of preformed parts shall be a minimum 15% of the nominal tube O
17、D on all sizes through 25.4 mm ID, 6.3 mm for sizes over 25.4 mm ID through 50.8 mm ID, and 9.5 mm for sizes over 50.8 mm ID. End squareness shall be measured as described in 4.1. 5.2Arms LengthsMeasured from end to intersection of nearest centerline. Each end shall be as described in Section 4. The
18、se tolerances apply also to the length of an expanded end. 5.3General LayoutDimensions locating bend intersections are to establish the theoretical centerline of the tube. Actual outside contour of the tube must be held within 4.8 mm in all planes with respect to the theoretical outside contour. To
19、check contour, tube ends should first be placed in nominal position (it may have to be flexed to correct any distortion caused by handling after vulcanization in the producing plant or in shipment) in a checking fixture made in accordance with user requirements from which contour deviation can be me
20、asured. Allowance shall be provided in the end-mounting area of the fixture for the arm length tolerances which are applicable. -,-,- SAE J2405 Reaffirmed JUL2007 -3- When the ID of an end of the tube is enlarged, the wall gauge of the enlarged end normally changes. Allowable change should be +0.8 0
21、.5 mm. The wall gauge within bends of a preformed tube may differ from the gauge in straight portions. The difference shall not exceed 33%. TABLE 1DIMENSIONS AND TOLERANCES Nominal Size mm Inside Diameter mm Outside Diameter(1) mm 1.Concentricity based on total indicator reading between the inside b
22、ore and the outer surface of the tube shall not exceed the values given as follows: Sizes 6.4 mm and under:0.762 mm Sizes over 6.4 mm up to 12.7 mm:1.016 mm Sizes over 12.7 mm:1.270 mm End Out-of Squareness Angle, Deg(2) 2.These values were determined by the equation: A = 15 degrees K X D where: A =
23、 Maximum out-of-squareness angle K = 0.12 degree per mm of diameter (a slope factor derived from linear best-fit previous squareness requirement) D = Nominal inside diameter in millimeters 4.04.0 0.49.1 0.614.5 4.84.8 0.410.3 0.614.4 5.65.6 0.411.1 0.614.3 6.46.4 0.412.7 0.614.2 7.07.0 0.413.5 0.614
24、.1 7.97.9 0.414.3 0.614.0 8.78.7 0.415.1 0.614.0 9.59.5 0.415.9 0.613.9 11.111.1 0.618.3 0.813.7 12.712.7 0.619.8 0.813.5 15.915.9 0.823.8 0.813.1 19.119.1 0.828.6 0.812.7 25.425.4 0.834.9 1.612.0 31.831.8 1.0 not specified(3) 3.The wall gauge for sizes 31.8 mm to 50.8 mm shall be between 4.3 to 5.9
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