1.1 这些试验方法包括测定现有市售橡胶化学促进剂的纯度，其范围为80 % 至100 % 通过使用紫外线检测和外标计算的高效液相色谱法（HPLC）。 1.2 高效液相色谱方面的专业知识对于这些测试方法的成功应用是必要的。 1.3 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 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）。本标准的使用者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。 ===意义和用途====== 5.1 这些测试方法旨在确定橡胶化学促进剂的纯度。 5.2 由于这些测试方法的结果基于积分峰面积，因此假设所有感兴趣的分析物都是从干扰峰中分辨出来的。

1.1 These test methods cover the determination of the purity of present commercially available rubber chemical accelerators in the range from 80 % to 100 % by high performance liquid chromatography (HPLC) using ultraviolet detection and external standard calculations. 1.2 Expertise in HPLC is necessary to the successful application of these test methods. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 ====== 5.1 These test methods are designed to determine the purity of rubber chemical accelerators. 5.2 Since the results of these test methods are based on an integrated peak area, it is assumed that all analytes of interest are resolved from interfering peaks.