1.1 本指南涵盖了无特定限制的信息，用于选择测试碳氢基淬火油质量和老化的标准测试方法。 1.2 以国际单位制表示的数值应视为标准值。 1.2.1 例外情况- 括号中给出的单位仅供参考。 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====== 4.1 每种测试方法的意义和用途将取决于使用中的系统和第节所列测试方法的目的 6. . 使用最新版本的测试方法。

1.1 This guide covers information without specific limits, for selecting standard test methods for testing hydrocarbon-based quench oils for quality and aging. 1.2 The values stated in SI units are to be regarded as standard. 1.2.1 Exception— The units given in parentheses are for information only. 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 ====== 4.1 The significance and use of each test method will depend on the system in use and the purpose of the test method listed under Section 6 . Use the most recent editions of the test methods.