1.1 本规范涵盖了“通用航空”飞机适航性和设计防冰方面的国际标准。 1.2 设计批准申请人必须寻求各自民航局（CAA）机构的个人指导，将本规范作为认证计划的一部分。有关CAA监管机构已接受本规范（全部或部分）作为遵守其小型飞机适航条例（以下简称“规则”）的手段的信息，请参阅ASTM F44网页（www.ASTM.org/COMMITTEE/F44.htm），其中包括CAA网站链接。 1.3 单位-- 这些数值以飞机结冰领域通用的单位表示。通常使用国际单位制或英寸磅单位，但在某些情况下，由于这些值的历史发展，导致使用混合单位。在一个系统中给出值，另一个系统放在括号中的情况下，每个系统中所述的值不一定完全相等； 因此，为了确保符合标准，每个系统应独立使用，并且不得将两个系统的值组合使用。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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》中确立的国际公认的标准化原则制定的。

1.1 This specification covers international standards for ice protection aspects of airworthiness and design for “general aviation” aircraft. 1.2 The applicant for a design approval must seek the individual guidance of their respective civil aviation authority (CAA) body concerning the use of this specification as part of a certification plan. For information on which CAA regulatory bodies have accepted this specification (in whole or in part) as a means of compliance to their Small Aircraft Airworthiness regulations (hereinafter referred to as “the Rules”), refer to ASTM F44 webpage (www.ASTM.org/COMMITTEE/F44.htm) which includes CAA website links. 1.3 Units— The values are stated in units common to the field of aircraft icing. Typically SI or inch-pound units are used, but in some cases this has resulted in the use of mixed units due to the historical development of these values. In cases where values are given in one system with the other system following in brackets, the values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 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.