1.1 本试验方法用于测定颗粒载体和颗粒农药的粒度分布。 1.2 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。 1.3 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。 有关具体的危险说明，请参阅第节 6. . 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 该程序主要用于粘土、玉米芯、坚果壳、纸或沙子颗粒载体和颗粒状农药产品，但不限于这些材料。 对于其他类型的颗粒载体和产品，可能有更合适的测试方法。

1.1 This test method is used to determine the particle size distribution of granular carriers and granular pesticides. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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. For specific hazard statements, see Section 6 . 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 This procedure was designed principally for clay, corncob, nut shell, paper, or sand granular carriers and granular pesticide products, but need not be limited to these materials. There may be more appropriate test methods for other types of granular carriers and products.