本文件描述了测定混凝土中使用的骨料的某些特性的程序，用于测定松散或压实的体积密度，使用流体静力平衡法测定颗粒密度和吸水率，以及使用比重瓶法测定每体积的颗粒质量和吸水率。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document describes procedures for determining certain properties of aggregates for use in concrete for the determination of the loose or compacted bulk density, the determination of particle density and water absorption using the hydrostatic balance method and the determination of the particle mass-per-volume and water absorption using the Pycnometer method.All current amendments available at time of purchase are included with the purchase of this document.