ASTM E1740-20a 用锥形量热计测定墙面覆盖层或天花板覆盖层复合材料的热释放率和其他耐火试验响应特性的标准试验方法.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:E1740-20a An American National Standard INTERNATIONAL Standard Test Method for Determining the Heat Release Rate and Other Fire-Test- Response Characteristics of Wall Covering or Ceiling Covering Composites Using a Cone Calorimeter This standard is issued under the fixed designation E1740;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 This test method provides a means for measuring the fire-test-response characteristics of wall coverings ceiling coverings wall covering posites and ceiling covering posites using a bench-scale oxygen consumption calorimeter. 1.Scope* 1.7 This standard is used to measure and describe the 1.I This fire-test-response test method covers determination response of materials products or assemblies to heat and of the ignitability and heat release rate of posites consisting flame under controlled conditions but does not by itself of a wall covering or ceiling co...