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ASTM C501

84th Edition, December 28, 1984

Complete Document

Standard Test Method for Relative Resistance to Wear of Unglazed Ceramic Tile by the Taber Abraser

Includes all amendments and changes through Reapproval Notice , 2015


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Product Details:

  • Revision: 84th Edition, December 28, 1984
  • Published Date: January 2015
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 3
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This test method2 overs the establishment of an abrasive wear index by determination of the loss of weight resulting from abrasion of unglazed ceramic tile. It is applicable to tile described in Definitions C242. c

The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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.

2 This test method is basically the same as the abrasion test given in Federal Specification SS-T-308b, except two minor changes have been made:

(1) The number of specimens required by the test is changed from three to four, so that the condition of the abrasive wheels used can be specified as new and once dressed. The diameters of wheels redressed more than once vary greatly and nonuniformly, introducing an unnecessary variation in test results.

(2) The bulk specific gravity of the tile tested has been eliminated from calculation of the wear index. The probable resulting maximum error of 2½ % in the wear-index value, when an average is assumed, does not justify the cumbersome determinations of bulk specific gravity of the specimen. Measurements of bulk specific gravities of twenty different unglazed tile from eight different manufacturers, including quarry tile, porcelain tile, natural clay tile and conductive tile showed a range of bulk specific gravity from 2.34 to 2.47, except for that of conductive tile which was as high as 2.98. The average of 2.40 was selected as a constant to be substituted for G in the SS-T-308b formula to obtain the formula in this test method. Therefore, to obtain the value 88, the constant of 36.75 in the SS-T-308b test has been multipled by 2.40 to keep the wear indexes of both tests on the same numerical scale.