1.1 列出的术语和定义提供了一套通用的定义和概念，这些定义和概念已由飞机性能和运行工程师学会（Society of Aircraft Performance and Operations Engineers）认可。虽然历史报告和研究可能使用不同的术语，但所有概念都应与所列定义相关。 1.2 包括几个讨论部分以提供背景。这些定义和讨论有助于正式获取与美国联邦航空局和国际民航组织标准指导下的飞机认证、飞机运营和机场运营相关的行业最佳实践和通用方法。 1.3 单位- 以国际单位制表示的数值应视为标准值。这些定义中没有使用国际单位制。 有关制动系数的新值如下所述。 1.4 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。 1.5 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 下面列出的术语允许为围绕车轮制动的识别、记录和通信的概念提供标准化和特定的语言。这些条款旨在特别允许制造商、运营商、监管机构、研究机构和调查机构以可直接应用于运营要求的方式交流基本概念。

1.1 The terms and definitions listed provide a common set of definitions and concepts that have been agreed upon by the Society of Aircraft Performance and Operations Engineers. While historical reports and studies may use different terms, all concepts should be relatable to the definitions listed. 1.2 Several discussion sections are included to provide context. The definitions and discussions serve to formally capture industry best practices and common methods that relate to aircraft certification, aircraft operation, and airport operations under standard FAA and ICAO guidance. 1.3 Units— The values stated in SI units are to be regarded as standard. There are no SI units used in these definitions. New values relating to braking coefficients are described below. 1.4 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. 1.5 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 The terminology listed below allows for standardized and specific language to be given to concepts surrounding the identification of, recording, and communication of vehicle wheel braking. The terms are designed to specifically allow manufacturers, operators, regulators, research agencies, and investigative agencies the ability to communicate essential concepts in a manner that can be directly applied to operational requirements.