ASTM C241 C241M-2021 人行道用石板耐磨性的试验方法.pdf

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:C241/C241M-21 INTERNATIONAL Standard Test Method for Abrasion Resistance of Stone Subjected to Foot Traffic1 This standard is issued under the fixed designation C241/C241M: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. This standard has been approved for use by agencies of the U.S.Department of Defense. 1.Scope* Dimension Stone Subjected to Foot Traffic Using a Rotary 1.1 This test method covers the determination of abrasion Platform Abraser resistance of all types of stones for floors steps and similar C1799/C1799M Guide to Dimension Stone Test Specimen uses where the wear is caused by foot traffic. Sampling and Preparation 1.2 The values stated in either SI units or inch-pound units 3.Terminology are to be regarded separately as standard.The values stated in 3.1 Definitions-All definitions are in accordance with Ter- each system may not be exact equivalents;therefore each system shall be used independent...