ASTM F1805-99
(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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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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Designation: F 1805 – 99
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 538 Terminology Relating to the Characteristics and Per-
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formance of Tires
1.1 This test method covers a procedure for measuring the
F 1046 Guide for Preparing Artificially Worn Passenger and
driving traction of passenger car and light truck tires while
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Light Truck Tires for Testing
traveling in a straight line on snow- or ice-covered surfaces.
F 1572 Test Methods for Tire Performance Testing on Snow
1.2 This test method utilizes a dedicated, instrumented,
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and Ice Surfaces
four-wheel rear-wheel drive test vehicle with a specially
F 1650 Practice for Evaluating Tire Traction Performance
instrumented drive axle to measure fore-aft and vertical forces
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Data Under Varying Test Conditions
acting on a single driven test tire.
1.3 This test method is suitable for research and develop-
3. Terminology
ment purposes where tires are compared during a single series
3.1 Definitions:
of tests. They may not be suitable for regulatory statutes or
3.1.1 test (or testing), n—a procedure performed on an
specification acceptance because the values obtained may not
object (or set of nominally identical objects) using specified
necessarily agree or correlate either in rank order or absolute
equipment that produces data unique to the object (or set).
traction performance level with those obtained under other
F 538
environmental conditions on other surfaces or the same surface
3.1.1.1 Discussion—Test data are used to evaluate or model
after additional use.
selected properties or characteristics of the object (or set of
1.4 The values stated in SI units are to be regarded as the
objects). The scope of testing depends on the decisions to be
standard. The values given in parentheses are for information
made for any program, and sampling and replication plans (see
only.
definitions below) need to be specified for a complete program
1.5 This standard does not purport to address all of the
description.
safety concerns, if any, associated with its use. It is the
3.1.2 test run, n—a single pass of a loaded tire over a given
responsibility of the user of this standard to establish appro-
test surface. F 538
priate safety and health practices and determine the applica-
3.1.3 traction test, n— in tire testing, a series of n test runs
bility of regulatory limitations prior to use.
at a selected operational condition; a traction test is character-
2. Referenced Documents ized by an average value for the measured performance
parameter. F 538
2.1 ASTM Standards:
3.1.4 test tire, n—a tire used in a test. F 538
E 274 Test Method for Skid Resistance of Paved Surfaces
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3.1.5 test tire set, n—one or more test tires, as required by
Using a Full-Scale Tire
the test equipment or procedure, to perform a test, thereby
E 1136 Specification for a Radial Standard Reference Test
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producing a single test result. F 538
Tire
3.1.5.1 Discussion—The four nominally identical tires re-
F 424 Test Method for Tires for Wet Driving Traction in
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quired for vehicle stopping distance testing constitute a test tire
Straight-Ahead Motion Using Highway Vehicles
set. In the discussion below where the test tire is mentioned, it
F 377 Practice for Calibration of Braking/Tractive Measur-
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is assumed that the test tire set may be substituted for the test
ing Devices for Testing Tires
tire, if a test tire set is required for the testing.
F 457 Test Method for Speed and Distance Calibration of a
3.1.6 candidate tire, n—a test tire that is part of a test
Fifth Wheel Equipped with Either Analog or Digital
3 program. F 538
Instrumentation
3.1.6.1 Discussion—The term “candidate object” may be
used in the same sense as candidate tire.
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This test method is under the jurisdiction of Committee F-9 on Tires and is the
3.1.7 test matrix, n— in tire testing a group of candidate
direct responsibility of Subcommittee F09.20 on Vehicular Testing.
tires, usually with specified reference tires; all tests are
Current edition approved Sept. 10, 1999. Published November 1999. Last
previous edition F 1805 – 98. Originally published as F 1805 – 98.
normally conducted in one testing program. F 538
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Annual Book of ASTM Standards, Vol 04.03.
3.1.8 reference tire, n—a special tire included in a test
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Annual Book of ASTM Standards, Vol 09.02.
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