1.1 这些试验方法包括测定生橡胶和硫化或未硫化橡胶化合物中的铅、锌、铜和锰。通过适当调整样品质量和稀释度，考虑金属存在的水平。 1.2 橡胶样品中的某些复合成分将决定应使用哪种方法。请参阅第节 3. . 五种测定方法如下: 小节 方法A 8. 方法B 9 方法C 10 方法D 14 – 22 方法E 23 – 31 1.3 以国际单位制表示的数值应视为标准值。本标准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====== 4.1 这些测试方法适用于过程控制、产品验收和研发。

1.1 These test methods cover the determination of lead, zinc, copper, and manganese in raw rubber and rubber compounds, vulcanized or unvulcanized. The level at which the metals are present is taken into account by suitable adjustments of sample mass and dilution. 1.2 Certain compounding ingredients, present in the rubber sample will dictate which of the methods should be used. Refer to Section 3 . Five methods of determination are as follows: Sections Method A 8 Method B 9 Method C 10 Method D 14 – 22 Method E 23 – 31 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 ====== 4.1 These test methods are suitable for process control, for product acceptance, and for research and development.