ASTM F1805-20

Standard Test Method for Single Wheel Driving Traction in a Straight Line on Snow- and Ice-Covered Surfaces

SIGNIFICANCE AND USE
5.1 This test method describes a technique for assessing the performance characteristics of tires in a winter environment on snow and ice surfaces. When snow is referred to hereafter, ice is implied as appropriate.  
5.2 The measured values quantify the dynamic longitudinal traction properties of tires under driving torque. Dynamic traction properties are obtained on snow surfaces prepared in accordance with the stated test procedures and attempts to quantify the tires' performance when integrated into a vehicle-environmental system. Changing any one of these environmental factors will change the measurements obtained on a subsequent test run.  
5.3 This test method addresses longitudinal driving traction properties only on snow and ice surfaces. Refer to Test Methods F1572 for test methods for braking and lateral traction properties on snow or ice, or both.
SCOPE
1.1 This test method covers a procedure for measuring the driving traction of passenger car and light truck tires while traveling in a straight line on snow- or ice-covered surfaces.  
1.2 This test method utilizes a dedicated, instrumented, four-wheel rear-wheel drive test vehicle with a specially instrumented drive axle to measure fore-aft and vertical forces acting on a single driven test tire.  
1.3 This test method is suitable for research and development purposes where tires are compared during a single series of tests. They may not be suitable for regulatory statutes or specification acceptance because the values obtained may not necessarily agree or correlate either in rank order or absolute traction performance level with those obtained under other environmental conditions on other surfaces or the same surface after additional use.  
1.4 The values stated in SI units are to be regarded as the standard. Ordinarily, N and kN should be used as units of force. This standard may utilize kgf as a unit of force in order to accommodate the use of load and pressure tables, as found in other standards both domestic and global that are commonly used with this standard. The values given in parentheses are for information only.  
1.5 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.  
1.6 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: 30-Apr-2020
• ICS: 83.160.10 - Road vehicle tyres
• Technical Committee: F09 - Tires
• Drafting Committee: F09.20 - Vehicular Testing

Standards Content (Sample)

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: F1805 − 20
Standard Test Method for
Single Wheel Driving Traction in a Straight Line on Snow-
1
and Ice-Covered Surfaces
This standard is issued under the fixed designation F1805; 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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method covers a procedure for measuring the
E1136Specification for P195/75R14 Radial Standard Refer-
driving traction of passenger car and light truck tires while
ence Test Tire
traveling in a straight line on snow- or ice-covered surfaces.
F377PracticeforCalibrationofBraking/TractiveMeasuring
1.2 This test method utilizes a dedicated, instrumented,
Devices for Testing Tires
four-wheel rear-wheel drive test vehicle with a specially
F538Terminology Relating to the Characteristics and Per-
instrumented drive axle to measure fore-aft and vertical forces
formance of Tires
acting on a single driven test tire.
F1046Guide for Preparing Artificially Worn Passenger and
Light Truck Tires for Testing
1.3 This test method is suitable for research and develop-
F1572Test Methods for Tire Performance Testing on Snow
ment purposes where tires are compared during a single series
and Ice Surfaces
of tests. They may not be suitable for regulatory statutes or
specification acceptance because the values obtained may not F1650Practice for Evaluating Tire Traction Performance
Data Under Varying Test Conditions
necessarily agree or correlate either in rank order or absolute
traction performance level with those obtained under other F2493Specification for P225/60R16 97S Radial Standard
Reference Test Tire
environmentalconditionsonothersurfacesorthesamesurface
after additional use. 2.2 Other Standards:
The European Tyre and Rim Technical Organisation Stan-
1.4 The values stated in SI units are to be regarded as the
3
dards Manual
standard.Ordinarily,NandkNshouldbeusedasunitsofforce.
TheJapanAutomobileTyreManufacturersAssociation,Inc.
This standard may utilize kgf as a unit of force in order to
4
Yearbook
accommodate the use of load and pressure tables, as found in
5
The Tire & Rim Association, Inc. Year Book
other standards both domestic and global that are commonly
Tire Information Service Bulletin, Vol. 37/No. 6U.S. Tire
usedwiththisstandard.Thevaluesgiveninparenthesesarefor
Manufacturers Association (USTMA) Definition for Pas-
information only.
senger and Light Truck Tires for Use in Severe Snow
6
1.5 This standard does not purport to address all of the
Conditions
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- 3.1 Definitions:
mine the applicability of regulatory limitations prior to use.
3.1.1 candidate tire, n—a test tire that is part of a test
program. F538
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
2
ization established in the Decision on Principles for the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Development of International Standards, Guides and Recom-
Standards volume information, refer to the standard’s Document Summary page on
mendations issued by the World Trade Organization Technical
the ASTM website.
Barriers to Trade (TBT) Committee.
3
AvailablefromTheEuropeanTyreandRimTechnicalOrganisation,78/80,rue
Defacqz B-1060, Brussels, Belgium.
4
Available from The Japan Automobile Tyre Manufacturers Association, Inc.,
No. 33 Mori Bldg. 8th Floor, 3-8-21 Toranomon, Minato-ku, Toyko, Japan 105-
1
This test method is under the jurisdiction of Committee F09 on Tires and is the 0001.
5
direct responsibility of Subcommittee F09.20 on Vehicular Testing. Available from The Tire & Rim Association, Inc., 175 Montrose West Ave.,
Current edition approved May 1, 2020. Published May 2020. Originally Suite 150, Copley, OH 44321.
6
approved in 1997. Last previous edition approved in 2018 as F1805–18. DOI: Available from the U.S. Tire ManufacturersAssociation, 1400 K Street, N.W.,
10.1520/F1805-20. Washington D.C. 20005, www.ustires.org/publications.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F1805 − 20
3.1.1.1 Discussion—The
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F1805 − 18 F1805 − 20
Standard Test Method for
Single Wheel Driving Traction in a Straight Line on Snow-
1
and Ice-Covered Surfaces
This standard is issued under the fixed designation F1805; 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
1.1 This test method covers a procedure for measuring the driving traction of passenger car and light truck tires while traveling
in a straight line on snow- or ice-covered surfaces.
1.2 This test method utilizes a dedicated, instrumented, four-wheel rear-wheel drive test vehicle with a specially instrumented
drive axle to measure fore-aft and vertical forces acting on a single driven test tire.
1.3 This test method is suitable for research and development purposes where tires are compared during a single series of tests.
They may not be suitable for regulatory statutes or specification acceptance because the values obtained may not necessarily agree
or correlate either in rank order or absolute traction performance level with those obtained under other environmental conditions
on other surfaces or the same surface after additional use.
1.4 The values stated in SI units are to be regarded as the standard. Ordinarily, N and kN should be used as units of force. This
standard may utilize kgf as a unit of force in order to accommodate the use of load and pressure tables, as found in other standards
both domestic and global that are commonly used with this standard. The values given in parentheses are for information only.
1.5 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.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E1136 Specification for P195/75R14 Radial Standard Reference Test Tire
F377 Practice for Calibration of Braking/Tractive Measuring Devices for Testing Tires
F538 Terminology Relating to the Characteristics and Performance of Tires
F1046 Guide for Preparing Artificially Worn Passenger and Light Truck Tires for Testing
F1572 Test Methods for Tire Performance Testing on Snow and Ice Surfaces
F1650 Practice for Evaluating Tire Traction Performance Data Under Varying Test Conditions
F2493 Specification for P225/60R16 97S Radial Standard Reference Test Tire
2.2 Other Standards:
3
The European Tyre and Rim Technical Organisation Standards Manual
4
The Japan Automobile Tyre Manufacturers Association, Inc. Yearbook
5
The Tire & Rim Association, Inc. Year Book
Tire Information Service Bulletin, Vol. 37/No. 56 U.S. Tire Manufacturers Association (USTMA) Definition for Passenger and
1
This test method is under the jurisdiction of Committee F09 on Tires and is the direct responsibility of Subcommittee F09.20 on Vehicular Testing.
Current edition approved Nov. 1, 2018May 1, 2020. Published November 2018May 2020. Originally approved in 1997. Last previous edition approved in 20162018 as
F1805 – 16.F1805 – 18. DOI: 10.1520/F1805-18.10.1520/F1805-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from The European Tyre and Rim Technical Organisation, 78/80, rue Defacqz B-1060, Brussels, Belgium.
4
Available from The Japan Automobile Tyre Manufacturers Association, Inc., No. 33 Mori Bldg. 8th Floor, 3-8-21 Toranomon, Minato-ku, Toyko, Japan 105- 0001.
5
Available from The Tire & Rim Association, Inc., 175 Montrose West Ave., Suite 150, Copley, OH 44321.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F1805 − 20
6
Light Truck Tires for Use in Severe Snow Conditions
3. Terminology
3.1 Defin
...