1.1 本规程建立了连续纤维增强复合材料的定向规范。明确提供了二维层压板和编织物的方向代码。层压板代码也可用于纤维缠绕材料。包括一种方法，用于以不允许使用下标符号的计算机格式表示下标信息。 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====== 4.1 层压板方向代码的目的是提供一种简单、易于理解的方法来描述层压板的铺层。层压板方向代码主要基于行业实践和 美国宇航局/国防部高级复合材料设计指南 , 5. CMH-17-2G和ISO 1268-1。 4.2 编织方向代码为二维编织提供了类似的信息，主要基于 纺织复合材料的标准试验方法 . 6.

1.1 This practice establishes orientation codes for continuous-fiber-reinforced composite materials. Orientation codes are explicitly provided for two-dimensional laminates and braids. The laminate code may also be used for filament-wound materials. A method is included for presenting subscript information in computerized formats that do not permit subscript notation. 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 ====== 4.1 The purpose of a laminate orientation code is to provide a simple, easily understood method of describing the lay-up of a laminate. The laminate orientation code is based largely on a combination of industry practice and the codes used in the NASA/DOD Advanced Composites Design Guide , 5 CMH-17-2G, and ISO 1268-1. 4.2 The braiding orientation code provides similar information for a two-dimensional braid, based largely on Standard Test Methods for Textile Composites . 6