ASTM F2493-06

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F 2493 – 06
Standard Specification for
P225/60R16 97S Radial Standard Reference Test Tire
This standard is issued under the fixed designation F 2493; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope F 538 Terminology Relating to the Characteristics and Per-
formance of Tires
1.1 This specification covers the general requirements for
the P225/60R16 97S radial standard reference test tire.The tire
3. Terminology
covered by this specification is primarily for use as a reference
3.1 Definitions:
tire for braking traction, snow traction, and wear performance
3.1.1 Fordefinitionsoftermsusedinthisspecification,refer
evaluations,butmayalsobeusedforotherevaluations,suchas
to Terminology F 538.
pavement roughness, noise, or other tests that require a
3.1.2 pavement characteristic, n—a physical feature or
reference tire.
property of a pavement surface such as type, roughness,
1.1.1 A P195/75R14 (Specification E 1136) tire is another
texture, and skid resistance. E 867
standard reference test tire that is also used for these purposes.
3.2 Definitions of Terms Specific to This Standard:
This standard was originally published in 1986 and continues
3.2.1 all-season tread, n—a balance of the tread design for
to be used.
traction in rain or snow with good tread life and a comfortable,
1.2 This specification provides a 16-in. standard tire design
quiet ride.
and construction, standard dimensions, and specifies the con-
3.2.2 pitches, n—the number of different circumferential
ditions of storage.
segmentsofthetreaddesign,whichvarybythelengthsoftheir
1.3
individual designs.
1.4 This standard does not purport to address all of the
3.2.3 standard reference test tire, SRTT, n—a tire that is
safety concerns, if any, associated with its use. It is the
used as a control tire or surface-monitoring tire.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Design and Construction
bility of regulatory limitations prior to use.
4.1 The P225/60R16 standard reference test tire shall fea-
ture the steel-belted radial technology, and an all-season silica
2. Referenced Documents
2 content tread design, see Figs. 1 and 2, with technology as
2.1 ASTM Standards:
described in 3.2 and Sections 5-7.
D 412 Test Methods for Vulcanized Rubber and Thermo-
4.2 The tire shall be designed to conform with the Tire and
plastic Elastomers—Tension
RimAssociation, Inc. (TRA) standard nominal dimensions and
D 2240 Test Method for Rubber Property—Durometer
tolerances for cross section and overall diameter found in the
Hardness
current TRA Yearbook.
D 3182 Practice for Rubber—Materials, Equipment, and
4.3 The tire used for this specification is produced by
Procedures for Mixing Standard Compounds and Prepar-
BFGoodrich Tire Manufacturing. The tire is stamped on the
ing Standard Vulcanized Sheets
sidewall with the words: “Standard Reference Test Tire.”
E 867 Terminology Relating to Vehicle-Pavement Systems
E 1136 Specification for A Radial Standard Reference Test
Tire
Available from the Tire and Rim Association, Inc., 175 Montrose West Ave.,
Suite 150, Copley, OH 44321.
1 4
This specification is under the jurisdiction of ASTM Committee F09 on Tires Thesolesourceofsupplyofthestandardreferencetireknowntothecommittee
and is the direct responsibility of Subcommittee F09.20 on Vehicular Testing. atthistimeisBFGoodrichTireManufacturing,OpelikaPlant,P.O.Box30,Opelika,
Current edition approved Dec. 1, 2006. Published December 2006. AL 36801 (attn: Development Qualification Center SRTT Manager—specify
For referenced ASTM standards, visit the ASTM website, www.astm.org, or P225/60R16 97S SRTT Uniroyal Tiger Paw AWP). If you are aware of alternative
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM suppliers, please provide this information to ASTM International Headquarters.
Standards volume information, refer to the standard’s Document Summary page on Your comments will receive careful consideration at a meeting of the responsible
the ASTM website. technical committee, which you may attend.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F2493–06
5.6.2 A three-ply tread construction (one-ply polyester and
two steel belts).
5.6.3 Black sidewall.
5.6.4 Ventless tread molding.
6. Physical Properties
6.1 The physical properties of the tread compound are listed
in Table 1.
7. Dimensions, Weights, and Permissible Variations
7.1 Details of dimensions are listed as follows and are
shown in Fig. 3. When tolerances are not specified, tire
dimensions are subject to manufacturer’s normal tolerances.
7.2 Inflated Dimensions and Cured Cord Angles:
7.2.1 The tread width shall be 7.22 in. (183.4 mm), and the
cross-sectional tread radius shall be 24.2 6 2.0 in. (614.7 6
50.8 mm).
7.2.2 The tread radius is measured using the three-point
FIG. 1 Front View of the P225/60R16 97S Radial Standard
Reference Test Tire drop method (see Fig. 4 for an example of how the measure-
ment is taken).
7.2.3 The tire shall have a nominal cross-section width of
9.09 in. (231.0 mm), and a nominal outside diameter of
26.76 in. (679.0 mm) when mounted on a TRAmeasuring rim
width (16 3 6.5 J).
7.2.4 The cured cord angles shall be 90 6 2° for the carcass
and 21.0 6 2° for the belts.
7.3 Ribs—The tire shall have five ribs.
7.4 Grooves—The tire shall have four circumferential
grooves having a minimum groove depth of 0.314 in.
(7.97 mm).
7.5 Tread Design:
7.5.1 Groove (Void) Area Fraction—37 %.
FIG. 2 Side View of the P225/60R16 97S Radi
...