1.1 本指南涵盖了在绳索救援作业期间使用口哨作为通信手段的方法。 1.2 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。 1.3 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====== 3.1 哨声信号是救援人员和操作绳索人员之间简单有效的通信方式- 提升或降绳系统。当无线电发生故障或环境噪声使其无法理解时，它们可以用作主要通信手段或备用。 3.2 这些相同的信号可用于非救援情况，例如，在洞穴中攀爬的人。

1.1 This guide covers the methodology for the use of whistles as a means of communication during rope rescue operations. 1.2 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. 1.3 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 ====== 3.1 Whistle signals are a simple and effective means of communication between rescuers and those operating a rope-raising or rope-lowering system. They may be used as a primary means of communication or as a backup when radios fail or when ambient noise makes them unintelligible. 3.2 These same signals can be used in non-rescue situations, for example, by persons rappelling in caves.