ASTM F2870-11
(Specification)Standard Specification for 315/70R22.5 154/150L Radial Truck Standard Reference Test Tire
Standard Specification for 315/70R22.5 154/150L Radial Truck Standard Reference Test Tire
ABSTRACT
This specification covers the general requirements for the 315/70R22.5 154/150L radial truck standard reference tire. Provided in this specification is a 22.5 rim diameter code standard truck tire design and construction, standard dimensions and standard condition of storage. This specified tire is primarily used as a reference tire for braking traction, snow traction, wear performance evaluations, pavement and noise evaluations and other tests that necessitate a reference tire. Testing methods for the tensile sheet cure, the stress at 300% elongation, the tensile strength shall be in accordance with the standards presented by D3182 and D412 respectively. The test methods also include checking of the durometer operation, checking the sate calibration of the durometer, determining the tire tread hardness by averaging four readings and applying the presser foot to the tire tread as rapidly as possible without shock.
SCOPE
1.1 This specification covers the general requirements for the 315/70R22.5 154/150L radial truck standard reference test tire. The tire covered by this specification is primarily for use as a reference tire for braking traction, snow traction, and wear performance evaluations, but may also be used for other evaluations, such as pavement roughness, noise, or other tests that require a reference tire.
1.1.1 Other standard reference test tires are also used for these purposes and are referenced in Section 2.
1.2 This specification provides a 22.5 rim diameter code standard truck tire design and construction, standard dimensions, and specifies the conditions of storage.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
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.
General Information
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Standards Content (Sample)
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Designation:F2870 −11
StandardSpecification for
315/70R22.5 154/150L Radial Truck Standard Reference Test
1
Tire
This standard is issued under the fixed designation F2870; 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 D2240 Test Method for Rubber Property—Durometer Hard-
ness
1.1 This specification covers the general requirements for
D3182 PracticeforRubber—Materials,Equipment,andPro-
the 315/70R22.5 154/150L radial truck standard reference test
cedures for Mixing Standard Compounds and Preparing
tire. The tire covered by this specification is primarily for use
Standard Vulcanized Sheets
as a reference tire for braking traction, snow traction, and wear
E867 Terminology Relating to Vehicle-Pavement Systems
performance evaluations, but may also be used for other
E1136 Specification for P195/75R14 Radial Standard Refer-
evaluations, such as pavement roughness, noise, or other tests
ence Test Tire
that require a reference tire.
F538 Terminology Relating to the Characteristics and Per-
1.1.1 Other standard reference test tires are also used for
formance of Tires
these purposes and are referenced in Section 2.
F2493 Specification for P225/60R16 97S Radial Standard
1.2 This specification provides a 22.5 rim diameter code
Reference Test Tire
standard truck tire design and construction, standard
F2871 Specification for 245/70R19.5 136/134M Radial
dimensions, and specifies the conditions of storage.
Truck Standard Reference Test Tire
1.3 The values stated in SI units are to be regarded as F2872 Specification for 225/75R16C 116/114S M+S Radial
Light Truck Standard Reference Test Tire
standard. The values given in parentheses are mathematical
conversions to inch-pound units that are provided for informa-
3. Terminology
tion only and are not considered standard.
1.4 This standard does not purport to address all of the 3.1 Definitions:
safety concerns, if any, associated with its use. It is the
3.1.1 Fordefinitionsoftermsusedinthisspecification,refer
responsibility of the user of this standard to establish appro- to Terminology F538.
priate safety and health practices and determine the applica-
3.1.2 pavement characteristic, n—physical feature or prop-
bility of regulatory limitations prior to use. erty of a pavement surface such as type, roughness, texture,
and skid resistance. E867
2. Referenced Documents
3.1.3 pitch, n—unitoftreadpatternelementsusedinvarious
2
2.1 ASTM Standards:
combinations to obtain optimum noise levels. F538
D412 Test Methods forVulcanized Rubber andThermoplas-
3.1.4 standard reference test tire, SRTT, n—tire that is used
tic Elastomers—Tension
as a control tire or surface-monitoring tire (for example,
SpecificationsE1136,F2493,F2870,F2871,andF2872). F538
1
This specification is under the jurisdiction of ASTM Committee F09 on Tires
and is the direct responsibility of Subcommittee F09.20 on Vehicular Testing.
4. Design and Construction
Current edition approved Jan. 1, 2011. Published March 2011. DOI: 10.1520/
F2870-11.
4.1 The 315/70R22.5 154/150L standard reference test tire
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
shall feature the steel-belted radial technology, and a smooth-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ribbed tread design, see Fig. 1 and Fig. 2, with technology as
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. described in Sections5–7.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F2870−11
5. Materials and Manufacture
5.1 The individual standard reference test tires shall con-
form to the manufacturer’s design standards.
5.2 Tread compound, fabric processing, and all the steps in
tire manufacturing shall be controlled to ensure minimum
variability between tires.
5.3 The standard reference test tire shall be as originally
molded without any tread grinding or repairs.
5.4 Since the formulation for tread compounds are
proprietary, they shall be controlled by means of their physical
properties given in Table 1.
5.5 Dimensions, weights, and permissible variations are
given in Section 7.
5.6 The tire shall be of the following construction:
5.6.1 One-ply sidewall construction (steel).
5.6.2 A five-ply tread construction (one-ply steel and four
steel belts).
5.6.3 Black sidewall.
6. Physical Properties
FIG. 1Front View of the 315/70R22.5 154/150L Radial Truck Stan-
dard Reference Test Tire
6.1 The physical properties of the tread compound are
...
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