ASTM E3090 E3090M-20 金属天花板悬挂系统强度性能标准试验方法.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 Standardis.Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:E3090/E3090M-20 INTERNATIONAL Standard Test Methods for Strength Properties of Metal Ceiling Suspension Systems This standard is issued under the fixed designation E3090/E3090M;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 (s)indicates an editorial change since the last revision or reapproval. INTRODUCTION In the past mechanical properties of metal ceiling suspension systems have been buried in other standards such as Specification C635 and Practice E580.This test method is an attempt to pull all testing requirements into one document. 1.Scope 2.Referenced Documents 1.1 These test methods cover metal ceiling suspension 2.1 ASTM Standards:2 systems used primarily to support acoustical tile acoustical C634 Terminology Relating to Building and Environmental lay-in panels or suspended T-bar type ceiling systems. Acoustics 1.2 These test methods cover the determination of strength C635 Specification for Manufacture Performance and Test- properties of suspended ceiling grid system...