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Significance and Use
4.1 Belt edge separation is a tire condition that can be encountered in tire use, particularly in high tire temperature environments.
4.2 The goal of this standard is to define a scientifically valid protocol for the laboratory generation of belt edge separation in a tire that has previously completed accelerated laboratory aging as described in Practice F2838. This test method does not establish performance limits or tolerances for tire specifications.
4.3 However, as stated in the scope, some tires may not develop belt edge separations under the specified test conditions. They may develop other EOT conditions that are not due to belt edge separation. Also, some tires may not develop any EOT conditions during the course of the test prior to a DCT.
1.1 This standard describes a laboratory method to evaluate tires for their tendency to develop belt edge separation, via the use of a standard roadwheel (Practice F551/F551M). This evaluation is conducted on tires that have undergone accelerated laboratory aging as described in Practice F2838.
1.2 The End-of-Test (EOT) conditions that can be produced by this method include target (belt-edge separation), non-target (conditions other than belt-related separations that can be developed in passenger and light truck tires through on-road use), and non-representative (conditions that are typically developed only on laboratory roadwheels). There is also the possibility that no visible EOT conditions may be generated during the course of this test. In this instance the user may choose to select a designated completion time (DCT) as the EOT condition.
1.3 The values stated in SI units are to be regarded as the standard. The values given in the data log in Appendix X1 in parentheses are provided for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Section 6.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
F538 Terminology Relating to the Characteristics and Performance of Tires
F551/F551M Practice for Using a 1.707-m [67.23-in.] Diameter Laboratory Test Roadwheel in Testing Tires
F2838 Practice for Accelerated Laboratory Aging of Radial Passenger Car and Light Truck Tires through Load Range E for the Laboratory Generation of Belt Separation
Other StandardsEuropean Tyre and Rim Technical Organisation (ETRTO) Standards Manual Available from European Tyre and Rim Technical Organisation (ETRTO), Rue Defacqz 78-80, B - 1060 Brussels, Belgium, http://www.etrto.org. Japan Automobile Tyre Manufacturers Association Inc. (JATMA) Year Book Available from The Japan Automobile Tyre Manufacturers Association, Inc. (JATMA), 8 Floor, No. 33 Mori Bldg., 3-8-21 Toranomon, Minato-ku, Tokyo, 105-0001 Japan, http://www.jatma.or.jp. Rubber Manufacturers Association (RMA): Volume 4: Tire Service Manual Available from Rubber Manufacturers Association, 1400 K. St. N.W., Washington, DC 20005. Tire and Rim Association (TRA) Year Book Available from Tire and Rim Association, Inc. (TRA), 175 Montrose West Ave., Suite 150, Copley, OH 44321, http://www.us-tra.org. ANSI/ISO/IEC17025 General requirements for the competence of testing and calibration laboratories Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org. ISO4000 Passenger Car Tyres and Rims Available from International Organization for Standardization (ISO), 1, ch. de la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http://www.iso.org.
ICS Number Code 83.160.01 (Tyres in general)
UNSPSC Code 25172504(Automobile or light truck tires)
ASTM F3015-13, Standard Test Method for Accelerated Laboratory Roadwheel Generation of Belt Separation in Radial Passenger Car and Light Truck Tires through Load Range E, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top