ASTM F1805-00
(Test Method)Standard Test Method for Single Wheel Driving Traction in a Straight Line on Snow- and Ice-Covered Surfaces
Standard Test Method for Single Wheel Driving Traction in a Straight Line on Snow- and Ice-Covered Surfaces
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. 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: F 1805 – 00
Standard Test Method for
Single Wheel Driving Traction in a Straight Line
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on Snow- and Ice-Covered Surfaces
This standard is issued under the fixed designation F 1805; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope F 457 Test Method for Speed and Distance Calibration of a
Fifth Wheel Equipped with Either Analog or Digital
1.1 This test method covers a procedure for measuring the
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Instrumentation
driving traction of passenger car and light truck tires while
F 538 Terminology Relating to the Characteristics and Per-
traveling in a straight line on snow- or ice-covered surfaces.
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formance of Tires
1.2 This test method utilizes a dedicated, instrumented,
F 1046 Guide for PreparingArtificiallyWorn Passenger and
four-wheel rear-wheel drive test vehicle with a specially
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Light Truck Tires for Testing
instrumented drive axle to measure fore-aft and vertical forces
F 1572 TestMethodsforTirePerformanceTestingonSnow
acting on a single driven test tire.
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and Ice Surfaces
1.3 This test method is suitable for research and develop-
F 1650 Practice for Evaluating Tire Traction Performance
ment purposes where tires are compared during a single series
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Data Under Varying Test Conditions
of tests. They may not be suitable for regulatory statutes or
specification acceptance because the values obtained may not
3. Terminology
necessarily agree or correlate either in rank order or absolute
3.1 Definitions:
traction performance level with those obtained under other
3.1.1 test (or testing), n—a procedure performed on an
environmental conditions on other surfaces or the same surface
object (or set of nominally identical objects) using specified
after additional use.
equipment that produces data unique to the object (or set).
1.4 The values stated in SI units are to be regarded as the
F 538
standard. The values given in parentheses are for information
3.1.1.1 Discussion—Test data are used to evaluate or model
only.
selected properties or characteristics of the object (or set of
1.5 This standard does not purport to address all of the
objects). The scope of testing depends on the decisions to be
safety concerns, if any, associated with its use. It is the
made for any program, and sampling and replication plans (see
responsibility of the user of this standard to establish appro-
definitions below) need to be specified for a complete program
priate safety and health practices and determine the applica-
description.
bility of regulatory limitations prior to use.
3.1.2 test run, n—a single pass of a loaded tire over a given
2. Referenced Documents test surface. F 538
3.1.3 traction test, n— in tire testing, a series of n test runs
2.1 ASTM Standards:
at a selected operational condition; a traction test is character-
E 274 Test Method for Skid Resistance of Paved Surfaces
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ized by an average value for the measured performance
Using a Full-Scale Tire
parameter. F 538
E 1136 Specification for a Radial Standard Reference Test
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3.1.4 test tire, n—a tire used in a test. F 538
Tire
3.1.5 test tire set, n—one or more test tires, as required by
F 424 Test Method for Tires for Wet Driving Traction in
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the test equipment or procedure, to perform a test, thereby
Straight-Ahead Motion Using Highway Vehicles
producing a single test result. F 538
F 377 Practice for Calibration of Braking/Tractive Measur-
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3.1.5.1 Discussion—The four nominally identical tires re-
ing Devices for Testing Tires
quiredforvehiclestoppingdistancetestingconstituteatesttire
set. In the discussion below where the test tire is mentioned, it
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This test method is under the jurisdiction of Committee F09 on Tires and is the is assumed that the test tire set may be substituted for the test
direct responsibility of Subcommittee F09.20 on Vehicular Testing.
tire, if a test tire set is required for the testing.
Current edition approved Nov. 10, 2000. Published January 2001. Last previous
3.1.6 candidate tire, n—a test tire that is part of a test
edition F 1805 – 99. Originally published as F 1805 – 97.
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program. F 538
Annual Book of ASTM Standards, Vol 04.03.
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Annual Book of ASTM Standards, Vol 09.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F 1805
3.1.6.1 Discussion—The term “candidate object” may be 4.2 Thetestisconductedbydrivingthetestvehicleoverthe
used in the same sense as candidate tire. test surface. Driving torque is gradually increased to the test
wheelwhilemaintainingthevehiclespeedbyapplyingb
...
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