肥料 容重（夯实）的测定

[中文适用范围]： 1 范围 本文件规定了测定固体肥料松装密度（振实后）的两种方法：机械振实法（方法1）；手工振实法（方法2）。这些方法仅适用于干燥肥料。两种方法均不适用于含大量直径超过5 mm颗粒的材料。方法2仅适用于球形颗粒和粒状肥料，不适用于有锋利边缘的颗粒。注：由于振实技术的差异，两种方法测定的松装密度（振实后）值可能不同。 [外文原描述]： This document specifies two methods for the determination of the bulk density (tapped) of solid fertilizers: the machine-tapping method (method 1); the hand-tapping method (method 2). These methods are applicable to dry fertilizers only. Neither method is suitable for materials which contain a large proportion of particles exceeding 5 mm in diameter. Method 2 is applicable only to spherical granules and to prills. It is not applicable to sharp-edged grains. NOTE Because of the differences in tapping technique, the two methods will not necessarily give the same value for the bulk density (tapped).