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ASTM F 1016 : 2007 : R2013 : EDT 1

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Practice for Linear Tire Treadwear Data Analysis
Available format(s)

Hardcopy , PDF

Superseded date

06-18-2020

Language(s)

English

Published date

06-01-2013

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 09.02, 2015 Describes the elementary linear regression analysis of basic treadwear data as obtained according to Test Method F 421 and Test Method F 762.

1.1This practice describes the elementary linear regression analysis of basic treadwear data as obtained according to Test Method F421 and Test Method F762.

1.2The basic treadwear data are obtained as groove depth loss measurements by procedures described in Test Method F421 after a series of test cycles (test distances under specified conditions) according to Test Method F762.

1.3A linear regression analysis is performed for the relationship between average tire tread depth and the test distance traveled by the test vehicle, on which the test tires are mounted. From this analysis a rate of wear is determined: groove depth loss per unit distance.

1.4Linear treadwear is defined as an essentially constant rate of wear, after break-in, which results in a linear regression coefficient of determination, R2, equal to or greater than 0.95 when obtained for a data set where the number of measurement intervals, n, is at least 3. Each measurement interval represents a specific test distance.

1.5This practice is not applicable to the prediction of treadlife for tires that exhibit non-linear or irregular treadwear.

1.6Evaluation parameters are given for both SI and inch-pound units; either may be used. The evaluation parameters as defined are ones typically used in the tire testing industry and no special claim is made for superiority of these parameters and terms over other terms and parameters that may be developed.

Committee
F 09
DocumentType
Standard Practice
Pages
3
ProductNote
Reconfirmed EDT 1
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM F 762/F762M : 2008 : R2014 Standard Test Method for Determining Change in Groove (or Void) Depth With Distance Traveled for Passenger Car Tires

ASTM F 538 : 2013 : REDLINE Standard Terminology Relating to the Characteristics and Performance of Tires
ASTM F 421 : 2015 : REDLINE Standard Test Method for Measuring Groove and Void Depth in Passenger Car Tires
ASTM F 762 : 1994 : R2000 : EDT 1 Standard Test Method for Determining Change in Groove (or Void) Depth With Distance Traveled for Passenger Car Tires

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