1.1 在本说明书中，解决了由天气信息提供商(WIP)执行的天气信息报告、分析和服务的性能标准，以支持可扩展交通管理(xTM)系统、无人驾驶飞机系统(UAS)和垂直起飞和着陆(VTOL)系统，该系统从地面操作到地面水平(AGL)以上5000英尺(1524米)。 1.2 本规范没有定义如何报告气象机场报告（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WIP标准的关系- 本规范的一个目标是实现标准开发组织（SDO）开发的标准之间的协调。当一个地区的监管机构要求特定的SDO制定必要的标准时，同一主题可能会存在多个标准。在这些情况下，ASTM International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 性能标准取决于任何合格的天气信息报告、分析和服务提供商对数据性能准确性的报告，以支持用户（即，使用天气服务的人类或自动化系统）基于风险的决策。 1.5 本规范提供了一个初始版本，为航空操作提供指导，包括但不限于UAS和VTOL用户，用于天气测量和分析。研究和开发活动将继续通知并导致对本规范的修改。1.6 本规范不包括天气预报的性能标准。 1.7 单位- 以英寸-磅为单位的数值应被视为标准。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准。 1.8 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.9 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 enable harmonization across standards developed by 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 The standard of performance depends on the reporting of data performance accuracy by any qualified provider of weather information reports, analyses, and services to support risk-based decisions by a user (that is, human or automated system that is consuming the weather service). 1.5 This specification provides an initial version to provide guidance to 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. 1.6 This specification will not cover the standard of performance for weather forecasts. 1.7 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. 1.8 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. 1.9 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.