1.1 这些试验方法描述了用于打开和关闭车窗的齿轮式旋转操作装置的磨损试验( 注1 ). 1.2 这些试验方法并不直接确定不同环境条件的影响，但可在环境暴露后使用，以评估此类暴露的影响。 1.3 这些试验方法的目的不是评估操作员在抵抗其可能承受的最大力方面的结构充分性。 注1: 某些类型的旋转窗口操作器，如扭杆操作器和伸缩操作器，无法通过这些测试方法进行测试。 1.4 以英寸-磅为单位的数值应视为标准值。英寸-磅单位的公制等价物可能是近似值。 1.5 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。 有关具体的危险声明，请参阅 9.1.2 . 1.6 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。 ====意义和用途====== 5.1 这些试验为评估旋转式车窗操作器的机械性能提供了标准方法，而操作器在打开和关闭时会受到操作力矩的循环磨损。

1.1 These test methods describe the wear testing of gear-type rotary operating devices used for opening and closing windows ( Note 1 ). 1.2 These test methods do not directly determine the effects of varying environmental conditions but may be employed after environmental exposure to evaluate the effect of such exposure. 1.3 These test methods are not intended to evaluate the structural adequacy of the operator in resisting the maximum force to which it may be subjected. Note 1: Certain types of rotary window operators, such as torque-bar operators and telescopic operators cannot be tested by these test methods. 1.4 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate. 1.5 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. For a specific hazard statement, see 9.1.2 . 1.6 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. ====== Significance And Use ====== 5.1 These tests provide standard methods for evaluating the mechanical performance of the rotary-type window operators, while the operators are subjected to cyclic wear in opening and closing against the operating moment.