1.1这些要求确立了国家认可的用于室外使用的A类（住宅）和B类（非住宅）塑料座椅的性能要求。 1.2这些要求不涉及影响制造现场以外椅子性能的条件。 1.3这些要求不适用于躺椅、多位椅、软垫椅或其他类型的家具。 1.4这些要求涵盖了产品在室外风化、冲击、静载荷和后腿测试方面的物理性能。 1.5只要满足性能要求，产品可以由回收塑料制造。 1.6以英寸-磅为单位的数值应视为标准值。括号中给出的值仅供参考。 1.7 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 These requirements establish nationally recognized performance requirements for Class A (residential) and Class B (nonresidential) plastic chairs intended for outdoor use. 1.2 These requirements do not address conditions that affect the performance of the chair beyond the manufacturing site. 1.3 These requirements are not applicable to chaises, multipositional chairs, upholstered chairs, or other types of furniture. 1.4 These requirements cover the physical performance of product regarding the aspects of outdoor weathering, impact, static load, and rear leg testing. 1.5 Products may be manufactured from recycled plastics as long as the performance requirements are met. 1.6 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. 1.7 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.