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ASTM F1971-12(2018)

(Test Method)

Standard Test Method for Electrical Resistance of Tires Under Load On the Test Bench

Standard Test Method for Electrical Resistance of Tires Under Load On the Test Bench

SIGNIFICANCE AND USE
5.1 Occasions exist where static charges on the vehicle must be dissipated by way of the tires. Electrical resistance inversely measures the tire's ability to dissipate static charge from the vehicle.
SCOPE
1.1 This test method covers the measurement of the electrical resistance between the wheel of a mounted and inflated tire-wheel assembly and a flat conducting surface in loaded contact with the tire.  
1.2 This test method specifies procedures and equipment such that electrical resistance can be accurately determined for tires with values up to 1012  Ω (ohms).  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
31-Mar-2018
ICS
83.160.01 - Tyres in general
Technical Committee
F09 - Tires
Drafting Committee
F09.30 - Laboratory (Non-Vehicular) Testing
Current Stage
Ref Project

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ASTM F1971-12(2018) - Standard Test Method for Electrical Resistance of Tires Under Load On the Test BenchASTM F1971-12(2018) - Standard Test Method for Electrical Resistance of Tires Under Load On the Test Bench
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ASTM F1971-12(2018) - Standard Test Method for Electrical Resistance of Tires Under Load On the Test Bench
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F1971 − 12 (Reapproved 2018)
Standard Test Method for
Electrical Resistance of Tires Under Load On the Test
1
Bench
This standard is issued under the fixed designation F1971; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope The European Tyre and Rim Technical Organization
4
(ETRTO), current issue
1.1 This test method covers the measurement of the electri-
The JapanAutomobile Tire ManufacturersAssociation, Inc.
cal resistance between the wheel of a mounted and inflated
5
Yearbook (JATMA), current issue
tire-wheel assembly and a flat conducting surface in loaded
International Standard ISO 16392Electrical Resistance—
contact with the tire.
Test Methods to Measure the Electrical Resistance of
1.2 This test method specifies procedures and equipment 6
Tyres on a Test Rig
such that electrical resistance can be accurately determined for
Wirtschaftsverband der deutschen Kautschukindustrie e.V.
12
tires with values up to 10 Ω (ohms).
(W.d.K) 110Measurement of the Electrical Resistance of
Tyres
1.3 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
3. Terminology
only.
3.1 Definitions:
1.4 This standard does not purport to address all of the
3.1.1 connection point, n—any point on the wheel or metal
safety concerns, if any, associated with its use. It is the
loading plate where the resistance measuring instrument’s
responsibility of the user of this standard to establish appro-
leads are connected. F538
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. 3.1.2 rim, n—the specially shaped circular periphery to
1.5 This international standard was developed in accor- which a tire may be mounted with appropriate bead fitment.
dance with internationally recognized principles on standard- F538
ization established in the Decision on Principles for the
3.1.3 test load, n—the force applied to a tire through the
Development of International Standards, Guides and Recom-
rim; it is normal to the metal loading plate onto which the tire
mendations issued by the World Trade Organization Technical
is loaded. F538
Barriers to Trade (TBT) Committee.
3.1.4 tire electrical resistance, n—theelectricalresistancein
ohms (Ω) measured between the wheel of a mounted and
2. Referenced Documents
inflated tire-wheel assembly and a metallic plate onto which
2.1 ASTM Standards:
the tire is loaded at a specified load. F538
F538Terminology Relating to the Characteristics and Per-
2 3.1.5 wheel, n—a rigid structure consisting of a rim con-
formance of Tires
nected to a central disk that permits rotationally centered
2.2 Other Standards:
attachment to an axle. F538
TheTire and RimAssociation Inc.Yearbook (TRA), current
3
3.1.6 For additional definitions of terms used in this test
issue
method, refer to Terminology F538.
1
4. Summary of Test Method
This test method is under the jurisdiction of ASTM Committee F09 on Tires
and is the direct responsibility of Subcommittee F09.30 on Laboratory (Non-
4.1 Theelectricalresistanceofaninflatedtire-wheelassem-
Vehicular) Testing.
bly (see Note 1) is measured between the wheel and the
Current edition approved April 1, 2018. Published April 2018. Originally
approved in 1999. Last previous edition approved in 2012 as F1971–12. DOI:
10.1520/F1971-12R18.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from the European Tyre and Rim Technical Organization, 32/2
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM avenue Brugmann, B-1060 Brussels, Belgium.
5
Standards volume information, refer to the standard’s Document Summary page on Available from the Japan Automobile Tire Manufacturers Association, No. 33
th
the ASTM website. Mori Building, 8 Floor, 3-8-21 Toranomon, Minato-Ku, Tokyo, Japan 105-0001.
3 6
Available from the Tire and Rim Association, Inc., 175 Montrose West Ave., Available from International Organization for Standardization (ISO), 1 rue de
Suite 150, Copley, OH 44321. Varembé, Case postale 56, CH-1211, Geneva 20, Switzerland.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F1971 − 12 (2018)
conducting surface against which the tire is loaded. This 6.5 Pressure Gage—Acommercially available gage with an
measure
...

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