1.1 本规程介绍了轮胎测试的一些基本概念，以及与综合轮胎测试程序中经常使用的参考轮胎的使用有关的一组标准术语。试验可在实验室的各种测功机轮或其他装置上进行，也可在室外试验场设施上进行。本实践的总体目标是为此类测试制定一些基本原则，并将这些操作中使用的术语标准化。这将改善进行这些测试的人员以及使用此类测试结果的人员之间的沟通。 1.2 除了基本概念和术语外，还介绍了轮胎测试操作的统计模型 附件A1 . 这是术语和其他测试概念的数学和概念基础；这将增进理解。本附录也可用于将来的咨询，因为本实践已扩展，以解决测试过程的其他方面。 1.3 这一总体主题需要综合处理，对术语进行连续或分层开发，并进行大量背景讨论。 这在术语中是无法容纳的 F538 . 1.4 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。 1.5 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====== 3.1 轮胎测试操作通常包括一系列测试，除了评估候选轮胎的性能特征外，还涉及特殊的“参考”轮胎。参考轮胎用作“内部基准”，可用于调整测试结果的变化，以改进候选轮胎之间的比较。使用不同的术语进行此类测试的方法很多。这会造成混淆，本实践的目的是使该主题的一些基本概念和术语标准化。

1.1 This practice presents some basic concepts for tire testing and a standard set of terms relating to the use of reference tires frequently used for comprehensive tire testing programs. The tests may be conducted in a laboratory on various dynamometer wheels or other apparatus as well as at outdoor proving ground facilities. The overall objective of this practice is to develop some elementary principles for such testing and standardize the terms used in these operations. This will improve communication among those conducting these tests as well as those using the results of such testing. 1.2 In addition to the basic concepts and terminology, a statistical model for tire testing operations is also presented in Annex A1 . This serves as a mathematical and conceptual foundation for the terms and other testing concepts; it will improve understanding. The annex can also serve for future consultation as this practice is expanded to address additional aspects of the testing process. 1.3 This overall topic requires a comprehensive treatment with a sequential or hierarchical development of terms with substantial background discussion. This cannot be accommodated in Terminology F538 . 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. ====== Significance And Use ====== 3.1 Tire testing operations usually consist of a sequence of tests that involve special “reference” tires in addition to the candidate tires being evaluated for their performance characteristics. Reference tires serve as an “internal benchmark” which may be used to adjust for variation in test results to give improved comparisons among the candidate tires. Numerous approaches have been adopted using different terminology for such testing. This causes confusion and the purpose of this practice is to standardize some of the elementary concepts and terminology on this topic.