1.1 本指南提供了一系列选项，用于评估来自同一制造商的相同类型和形状的反光复合光学器件的批次间一致性，不建议采取任何具体行动。本指南旨在提高对信息和方法的认识，而不是根据ASTM标准定义的形式和风格为指南推荐任何具体的行动方案。 1.1.1 本指南不确定特定反光复合光学产品预期用途的实验室程序选择或验收标准。 制造商和客户有责任根据其具体需求协商这些细节。 1.1.2 本指南无意预测在役性能水平。 1.1.3 本指南不用于比较不同类型的复合光学器件或复合光学器件制造商。 1.2 单位- 以国际单位制表示的数值应视为标准值。国际单位制后括号中给出的值仅供参考，不被视为标准值。 1. 3. 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。 1.4 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====== 5.1 众所周知，路面标线的夜间反光特性可以提高驾驶安全性。为了提高干湿条件下的反射率，人们开发了反光复合光学器件。对于购买这些材料的客户来说，验证其一致性和性能很重要。本指南提供了一套实验室程序，可以单独选择或一起选择，以评估相同类型和制造商的复合光学器件的批间一致性。 这些不是在役性能程序，也不一定能预测在役性能。

1.1 This guide presents a series of options for evaluating lot-to-lot consistency of retroreflective composite optics of the same type and form from the same manufacturer and does not recommend any specific course of action to be taken. This guide is meant to increase the awareness of information and approaches and is not meant to recommend any specific course of action per ASTM’s Form and Style for ASTM Standards definition for a Guide. 1.1.1 This guide does not determine lab procedure selection or acceptance criteria for a specific retroreflective composite optics product for its intended use. It is the responsibility of the manufacturer and customer to negotiate these details based on their specific needs. 1.1.2 This guide is not intended to predict in-service performance levels. 1.1.3 This guide is not intended for comparison of different types of composite optics or manufacturers of composite optics. 1.2 Units— The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.3 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. 1.4 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 ====== 5.1 The nighttime retroreflective properties of pavement markings are known to improve driving safety. Retroreflective composite optics have been developed to improve retroreflectivity in dry and rainy wet conditions. For customers purchasing these materials it’s important to verify the consistency and performance. This guide provides a set of laboratory procedures which can be selected individually or together to evaluate lot-to-lot consistency of composite optics of the same type and manufacturer. These are not in-service performance procedures and don’t necessarily predict in-service performance.