本文件规定了一种用于确定适用于特定环境的粒度分布的基本方法 广泛的矿物土壤材料，包括有机土壤的矿物部分。它还提供 介绍中提到的处理不太常见土壤的程序。该文件已被删除 主要用于环境科学领域，并用于岩土工程勘察 这可能需要专业意见。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 specifies a basic method of determining the particle size distribution applicable to a wide range of mineral soil materials, including the mineral fraction of organic soils. It also offers procedures to deal with the less common soils mentioned in the introduction. This document has been developed largely for use in the field of environmental science, and its use in geotechnical investigations is something for which professional advice might be required.All current amendments available at time of purchase are included with the purchase of this document.