1.1 本规程涵盖吸声瓦和铺设面板的悬挂系统的安装。其服务用于安装隔音天花板的承包商和其他行业，如果其活动对本推荐做法中定义的天花板组件或性能造成干扰，则适用于此类承包商。 1.2 虽然本文件中描述的实践同样适用于耐火悬挂系统，但许多系统提出了额外要求，以获得特定地板天花板或屋顶的耐火等级- 天花板组件。这些详细信息可从上市机构和制造商处获得。 1.3 同样，当天花板静压箱延伸到相邻房间时，通常需要额外的细节来满足声音衰减要求。从所用声学材料的制造商处获得这些材料。 1.4 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值不是精确的等价物；因此，每个系统应相互独立使用。将两个系统中的值组合在一起会导致- 符合标准。 1.5 虽然本规程中描述的许多实践适用于外部环境中金属悬挂系统的安装，但外部天花板安装的具体设计需要建筑师或工程师（或两者）的审查和批准，他们负责建筑施工或现有建筑的改造。虽然征求了制造商的建议，但建筑师/工程师仍有最终责任确保正确应用所述材料。 1.6 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、健康和环境实践，并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 This practice covers the installation of suspension systems for acoustical tile and lay-in panels. It is applicable to contractors whose services are utilized for installing acoustical ceilings and to other trades if their activities are responsible for interference with ceiling components or performance as defined in this recommended practice. 1.2 While the practices described in this document have equal application to fire-resistive suspension systems, many systems impose additional requirements to obtain the fire endurance classification of particular floor-ceiling or roof-ceiling assemblies. These details are available from the listing agency and from the manufacturers. 1.3 Similarly, additional detailing is often necessary to meet sound attenuation requirements when ceiling plenums extend over contiguous rooms. Obtain these from the manufacturer of the acoustical material employed. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems result in non-conformance with the standard. 1.5 While many of the practices described in this practice have application to the installation of metal suspension systems in exterior environments, the specific design of exterior ceiling installations requires the review and approval of the architect or engineer, or both, who are responsible for the construction of the building or modifications to an existing building. While recommendations from the manufacturer are solicited, it remains the final responsibility of the architect/engineer to ensure proper application of the materials in question. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 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 Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.