1.1本试验方法涵盖了开放式空间三个组成部分的区域间衰减测量: 1.1.1当与部分高度空间分隔器一起使用时，天花板系统。这种安排通常用于办公室，以在没有全高隔板的情况下实现工作区之间的语音隐私。本试验方法适用于任何天花板配置，例如，包括其他声音中的声音反射面板图案- 吸收天花板。该试验方法通常需要使用高度为1.50 m（60 in）的固定空间分隔器。考虑到开放式办公环境中隔墙高度变化的趋势，可根据本标准进行隔墙高度变化的测量。 1.1.2在开放式空间中用作隔音屏障的家具面板，在工作位置之间提供语音隐私或隔音。 1.1.3垂直面板，包括墙壁饰面，如声音- 吸声板、家具板或可能反射声音的屏风。如果窗户饰面或家具（面板除外）与平壁板有显著差异，则其可能不适用于此类项目。 1.1.4开放式办公室各组成部分的结果组合超出了本标准的范围。 1.2除非另有规定，否则本试验方法中规定的所有尺寸应理解为公差为±6 mm（±1/4 in）。 )以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This test method covers the measurement of the interzone attenuation for three components of open-plan spaces: 1.1.1 Ceiling systems when used in conjunction with partial-height space dividers. This arrangement is commonly used in offices to achieve speech privacy between work zones in the absence of full-height partitions. This test method is applicable to any ceiling configuration, including, for example, a pattern of sound-reflective panels in an otherwise sound-absorptive ceiling. This test method generally requires use of a fixed space divider height of 1.50 m (60 in). In recognition of trends toward alternate divider heights in open office environments, measurements with an alternate divider height may be conducted in accordance with this standard. 1.1.2 Furniture panels used as acoustical barriers in open-plan spaces to provide speech privacy or sound isolation between working positions. 1.1.3 Vertical panels, including wall finishes such as sound-absorbent panels, and furniture panels or screens which may reflect sound. It may not be applicable to such items as window finishes or furniture other than panels if these differ significantly from flat wall panels. 1.1.4 The combination of results from the various components of an open-plan office is beyond the scope of this standard. 1.2 Unless otherwise qualified, all dimensions specified in this test method shall be understood to have a tolerance of ±6 mm (±1/4 in.) The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information only. 1.3 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.