Standard Test Method for Measuring Length of Road Test Courses Using a Fifth Wheel

SIGNIFICANCE AND USE
Maps, automobile odometers, and highway and distance markers are not sufficiently accurate to describe the length of a route for tire testing purposes. The proposed procedure describes a test method for measuring the length of a road course with sufficient accuracy for tire testing purposes.
SCOPE
1.1 This test method covers the determination of the accurate length measurement of road courses used for testing all types of pneumatic tires on various associated vehicles.  
1.2 This test method is intended for use on public highways or closed circuit test courses, or both, that cannot be measured practically by surveying techniques.  
1.3 Use of this test method requires that the surface of the test course to be measured shall be sufficiently smooth to preclude bounce or hop of the fifth wheel, which will affect the accuracy of the measurement. The normal highway surface is adequate for this test method.  
1.4 It is not the intent or scope of this test method to encompass distance measurements of test courses whose surfaces are irregular, broken up, jagged, etc., such as rock courses, Belgian block, "rumble" surfaces, etc. Snow- and ice-covered surfaces also are excluded.  
1.5 The values stated in either inch-pound or SI units are to be regarded separately as standard. The values given in parentheses are for information only.  
1.6 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

Status
Historical
Publication Date
30-Nov-2005
Technical Committee
Current Stage
Ref Project

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ASTM F559-05 - Standard Test Method for Measuring Length of Road Test Courses Using a Fifth Wheel
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F559–05
Standard Test Method for
Measuring Length of Road Test Courses Using a Fifth
1
Wheel
ThisstandardisissuedunderthefixeddesignationF559;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope F1082 Practice for Tires—Determining Precision for Test
3
Method Standards
1.1 This test method covers the determination of the accu-
rate length measurement of road courses used for testing all
3. Terminology
types of pneumatic tires on various associated vehicles.
3.1 Definitions—See Terminology F538 for terminology
1.2 This test method is intended for use on public highways
used in this test method.
or closed circuit test courses, or both, that cannot be measured
practically by surveying techniques.
4. Summary of Test Method
1.3 Use of this test method requires that the surface of the
4.1 This test method includes the use of a fifth wheel of
test course to be measured shall be sufficiently smooth to
known accuracy, incorporating a distance counter that is
precludebounceorhopofthefifthwheel,whichwillaffectthe
attached to the test vehicle and used to measure distances
accuracy of the measurement. The normal highway surface is
traveled by that vehicle.
adequate for this test method.
1.4 It is not the intent or scope of this test method to
5. Significance and Use
encompass distance measurements of test courses whose sur-
5.1 Maps,automobileodometers,andhighwayanddistance
faces are irregular, broken up, jagged, and so forth, such as
markers are not sufficiently accurate to describe the length of a
rock courses, Belgian block, “rumble” surfaces, and the like.
route for tire testing purposes. The proposed procedure de-
Snow- and ice-covered surfaces also are excluded.
scribes a test method for measuring the length of a road course
1.5 The values stated in SI units are to be regarded as
with sufficient accuracy for tire testing purposes.
standard. The values given in parentheses are for information
only.
6. Apparatus
1.6 This standard does not purport to address all of the
6.1 Fifth Wheel—The fifth wheel shall meet the require-
safety concerns, if any, associated with its use. It is the
ments of Test Method F457 and shall incorporate an odometer
responsibility of the user of this standard to establish appro-
ordistancecountercapableofaccumulatingthedistanceofthe
priate safety and health practices and determine the applica-
coursetobemeasured.Preferably,thedistancecounterreadout
bility of regulatory limitations prior to use.
will be in units of 1 m (3.28 ft) or a minimum of 0.25
revolution of the fifth wheel. In any case, the distance readout
2. Referenced Documents
shall meet the requirements of Test Method F457.
2
2.1 ASTM Standards:
F457 Test Method for Speed and Distance Calibration of
7. Procedure
Fifth Wheel Equipped With Either Analog or Digital
7.1 Attachthefifthwheeltotherearofthevehicleatapoint
Instrumentation
not in line with the vehicle wheelpath but midway between the
F538 Terminology Relating to the Characteristics and Per-
vehicle wheelpaths.
formance of Tires
7.2 Adjust the fifth wheel tire inflation pressure to the
manufacturer’s specification.
7.3 Warmupthefifthwheelbyrunningaminimumof3km
1
This test method is under the jurisdiction of ASTM Committee F09 on Tires
(2 miles) at approximately 65 km/h (40 mph).
and is the direct responsibility of Subcommittee F09.10 on Equipment, Facilities,
7.4 Calibrate in accordance with Test Method F457.
and Calibration.
7.5 With the fifth wheel in contact with the road surface,
Current edition approved Dec. 1, 2005. Published January 2006. Originally
approved in 1978. Last previous edition approved in 2000 as F559–95(2000). DOI:
drive the vehicle to the starting point of the test course to be
10.1520/F0559-05.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Withdrawn. The last approved version of this historical standard is referenced
the ASTM website. on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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F559–05
TABLE 1 Results of Precision and Bias Evaluation of Fifth Wheel
measured. Set its odometer or counter to zero. If the unit is
Measurement of a 1609.3-m (5280.0-ft) Course
non-resettable, record the reading.
Measured
7.6 Drive the vehicle from the starting point of the course
Testing (S ) Standard
r B
Length, Bias, ft (m)
A
Organization Deviation, ft (m)
completelyt
...

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