E1414-97中文版-共用天花板稳压层的房间之间的气载声衰减的标准试验方法.docVIP

E1414 PAGE 1048 Designation: E 1414 - 97 An American National Standard编号:E1414-97 美国国家标准 PAGE 1031 Standard Test Method forAirborne Sound Attenuation Between Rooms Sharing aCommon Ceiling Plenum This test method is under the jurisdiction of ASTM Committee E-33 on Environmental Acoustics and is the direct responsibility of Subcommittee E33.O3 on Sound Transmission.此规范由ASTM委员会E-33环境音响效果委员会管辖，并由E33.03声音传播分委会直接负责。 This test method is under the jurisdiction of ASTM Committee E-33 on Environmental Acoustics and is the direct responsibility of Subcommittee E33.O3 on Sound Transmission.此规范由ASTM委员会E-33环境音响效果委员会管辖，并由E33.03声音传播分委会直接负责。 Current edition approved Sept. 10, 1997. Published June 1998. Originally published as E 1414 - 91. Last previous edition E 1414 - 91a (1996) ε1.现行版本于1997年9月10日批准，并于1998年6月出版。最初版本编号为E1414-91。 This standard is issued under the fixed designation E 1414; 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 (ε) indicates an editorial change since the last revision or reapproval.本标准以固定编号E1414刊发；紧随编号后的数字表示最初采用的年份，或者是修订版的最后修订年份。圆括号中的数字表示必威体育精装版重新批准的年份。上标(ε)表示自上一修订版或重新批准后的编辑性修改。 INTRODUCTION引言 This test method is designed to measure the sound attenuation provided by a suspended ceiling in the presence of a continuous plenum space under prescribed laboratory test conditions. The test method is an adaptation of AMA-l-II-1967 Method of Test. This modified test method may give results differing from the AMA-l-II procedure.本试验方法设计用于在规定的实验室条件下测量一个带有连续稳压层的吊顶的声衰减。本试验方法是对AMA-l-II-1967试验方法的改编。这一改进的试验方法得出的结果可能不同于AMA-l-II试验程序的结果。 1. Scope适用范围 1.1 This test method utilizes a laboratory space so arranged that it simulates a pair of horizontally adjacent small offices or rooms separated by a partition and sharing a common plenum space. The partition either extends to the underside o