🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
ASTM-F1650:2005 Edition

ASTM-F1650:2005 Edition

$44.96

F1650-98(2005) Standard Practice for Evaluating Tire Traction Performance Data Under Varying Test Conditions

Published By Publication Date Number of Pages
ASTM 2005 13
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

ASTM F1650-98-Reapproved2005

Historical Standard: Standard Practice for Evaluating Tire Traction Performance Data Under Varying Test Conditions

ASTM F1650

Scope

1.1 This practice covers the required procedures for examining sequential control tire data for any variation due to changing test conditions. Such variations may influence absolute and also comparative performance of candidate tires, as they are tested over any short or extended time period. The variations addressed in this practice are systematic or bias variations and not random variations. See for additional details.

1.1.1 Two types of variation may occur: time or test sequence “trend variations,” either linear or curvilinear, and the less common transient or abrupt shift variations. If any observed variations are declared to be statistically significant, the calculation procedures are given to correct for the influence of these variations. This approach is addressed in Method A.

1.2 In some testing programs, a policy is adopted to correct all candidate traction test data values without the application of a statistical routine to determine if a significant trend or shift is observed. This option is part of this practice and is addressed in Method B.

1.3 The issue of rejecting outlier data points or test values that might occur among a set of otherwise acceptable data values obtained under identical test conditions in a short time period is not part of this practice. Specific test method or other outlier rejection standards that address this issue may be used on the individual data sets prior to applying this practice and its procedures.

1.4 Although this practice applies to various types of tire traction testing (for example, dry, wet, snow, ice), the procedures as given in this practice may be used for any repetitive tire testing in an environment where test conditions are subject to change.

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.

Keywords

data correction; test variation; testing trends; traction testing

ICS Code

ICS Number Code 83.160.10 (Road vehicle tyres)

DOI: 10.1520/F1650-98R05

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
2 Terminology
Significance and Use
Summary of Practice
3 Summary of Method A
Procedure
Calculations for Corrected Traction Performance Data
TABLE 1
4 TABLE 2
5 Summary of Method B
Calculations for Relative or Comparative Performance Evaluation
6 Citing This Practice
Keywords
A1. TYPICAL VARIATIONS OF CONTROL TIRE DATA AND AN EXAMPLE OF CORRECTION CALCULATIONS FOR CANDIDATE SET WET TRACTION EVALUATION
A1.1
A1.2
7 FIG. A1.1
FIG. A1.2
FIG. A1.3
FIG. A1.4
8 FIG. A1.5
TABLE A1.1
TABLE A1.2
9 A2. RECOMMENDED WEIGHTING PROCEDURE FOR CORRECTION FACTORS
A2.1
A2.2
A2.3
TABLE A1.3
TABLE A2.1
TABLE A2.2
TABLE A2.3
10 X1. STATISTICAL MODEL FOR TRACTION MEASUREMENT
X1.1 General Model Development and Background
X1.2 Application of Model to Variation in Pavement (Other) Conditions
X2. PROPAGATION OF ERROR (VARIATION) IN TIRE TRACTION PERFORMANCE EVALUATION
X2.1 Background
11 X2.2 Basis for Calculating the Variance of TPI
X2.3 Variance for TPI: Case 1—No Trend/Shift Corrections
TABLE X2.1
12 X2.4 Variance for TPI: Case 2—Trend Corrections
X2.5 Comparing the Variation of TPI—No Correction Versus Correction
TABLE X2.2

Related products

ASTM-F1650
$44.96