标准编号：ISO 11277:2020
中文名称：土壤质量 矿物土壤物质中粒径分布的测定 筛分法和沉降法
英文名称：Soil quality — Determination of particle size distribution in mineral soil material — Method by sieving and sedimentation
发布日期：2020-04
标准范围
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.
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