本文件规定了一种确定适用于多种矿物土壤材料的粒度分布的基本方法，包括有机土壤的矿物成分。它还提供了处理引言中提到的不太常见土壤的程序。本文件主要用于环境科学领域，其在岩土工程勘察中的使用可能需要专业建议。 本文件的主要目标是确定足够的粒度分数，以构建可靠的粒度分布曲线。 本文件不适用于测定土壤有机成分的粒度分布，即或多或少脆弱、部分分解的动植物残留物。人们还意识到，化学预处理- 本文件中的处理和机械处理阶段可能会导致弱粘性颗粒解体，根据现场检查，这些颗粒可能被视为一次颗粒，即使这些一次颗粒可以更好地描述为骨料。如果这种崩解是不可取的，则本文件不用于测定这种弱粘性材料的粒度分布。

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. A major objective of this document is the determination of enough size fractions to enable the construction of a reliable particle-size-distribution curve. This document does not apply to the determination of the particle size distribution of the organic components of soil, i.e. the more or less fragile, partially decomposed, remains of plants and animals. It is also realized that the chemical pre-treatments and mechanical handling stages in this document could cause disintegration of weakly cohesive particles that, from field inspection, might be regarded as primary particles, even though such primary particles could be better described as aggregates. If such disintegration is undesirable, then this document is not used for the determination of the particle size distribution of such weakly cohesive materials.