本标准适用于离心式、钟摆式和其他类型的广播播放机 用于在土壤表面操作时的干燥颗粒应用。本文概述的部分试验程序 适用于测定重力或吊具的输送速率；但是，不包括其他测试 在本标准中，需要对重力式吊具的性能进行全面评估。这个标准确实如此 不要覆盖干燥的气动颗粒喷头。

This Standard pertains to centrifugal, pendulum, and other types of broadcast spreaders designed for dry granular application while operating on the soil surface. Portions of the test procedures outlined herein are suitable for determining the delivery rate of gravity or drop spreaders; however, additional tests not covered in this Standard are needed to completely evaluate the performance of gravity spreaders. This Standard does not cover dry pneumatic granular applicators.