1.1 在本规范中，讨论了天气信息提供商（WIP）为支持可扩展交通管理（xTM）系统、无人驾驶飞机系统（UAS）和垂直起降（VTOL）系统而执行的天气信息报告、分析和服务的性能标准，这些系统从地面运行到地面以上5000英尺（1524米）。 1.2 本规范未规定如何报告机场气象报告（METAR）。本规范支持不断发展的国际和主权民航局（CAA）和空中导航服务提供商（ANSP）法规。 1.3 与国际在制品标准的关系-- 本规范的一个目标是在国际上协调CAA之间的标准，以实现其他标准开发组织（SDO）开发的标准之间的主题兼容性。 当一个地区的监管机构要求特定SDO制定必要的标准时，可能会出现针对同一主题的多个标准的存在。在这些情况下，ASTM国际可能会寻求与适用的SDO建立合作安排，以确保相关标准之间的一致性。 1.4 本规范提供了一个初始版本，为商业航空运营提供指导，包括但不限于无人机和垂直起降用户，用于天气测量和分析。研究和开发活动将继续为本规范提供信息并导致对其进行修改。 1.5 本规范不包括天气预报的性能标准。 1.6 单位-- 以英寸磅为单位的数值应视为标准。 括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 1.7 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。 1.8 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 In this specification, the standard of performance for weather information reports, analyses, and services performed by a weather information provider (WIP) in support of extensible traffic management (xTM) systems, unmanned aircraft systems (UAS) and vertical takeoff and landing (VTOL) systems operating from the surface to 5000 ft (1524 m) above ground level (AGL) are addressed. 1.2 This specification does not define how to report a meteorological aerodrome report (METAR). This specification supports evolving international and the sovereign civil aviation authority (CAA) and air navigation service provider (ANSP) regulations. 1.3 Relationship to International WIP Standards— One objective of this specification is to harmonize the standard across CAAs internationally to enable subject matter compatibility across standards developed by other standards development organizations (SDOs). The existence of multiple standards for the same subject matter can occur when a region’s regulator requires that a necessary standard be developed by a particular SDO. In these cases, ASTM International may seek to establish a cooperative arrangement with the applicable SDO to ensure consistency between the related standards. 1.4 This specification provides an initial version to provide guidance to commercial aviation operations including, but not limited to, UAS and VTOL users, for weather measurements and analyses. Research and development activities will continue to inform and lead to modifications to this specification. 1.5 This specification will not cover the standard of performance for weather forecasts. 1.6 Units— The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 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.