ISO 11277-1998
土壤质量 矿质土壤物质粒度分布的测定 筛分法和沉降法

Soil quality - Determination of particle size distribution in mineral soil material - Method by sieving and sedimentation

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标准号

ISO 11277-1998

发布日期

1998年05月

实施日期

废止日期

无

中国标准分类号

X11

国际标准分类号

13.080.20

发布单位

IX-ISO

代替标准

ISO 11277-2009

适用范围

This International Standard specifies a basic method of determining 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 International Standard has been developed largely for use in the field of environmental science, and its use in geotechnical investigations is something on which professional advice might be required. A major objective of this International Standard is the determination of enough size fractions to enable the construction of a reliable particle size distribution curve. This International Standard 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 should also be realized that the chemical pretreatments and mechanical handling stages in this International Standard 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 International Standard should not be used for the determination of the particle size distribution of such weakly cohesive materials.

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