BS ISO 11277:2009 Soil quality. Determination of particle size distribution in minera

BS ISO 11277:2009 Soil quality. Determination of particle size distribution in minera - Printable Version

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BS ISO 11277:2009 Soil quality. Determination of particle size distribution in minera - mybest - 03-14-2012

BS ISO 11277:2009 Soil quality. Determination of particle size distribution in mineral soil material. Method by sieving and sedimentation

BS ISO 11277 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.

BS ISO 11277 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 BS ISO 11277 is the determination of enough size fractions to enable the construction of a reliable particle-size-distribution curve.

BS ISO 11277 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 pretreatments and mechanical handling stages in BS ISO 11277 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 BS ISO 11277 is not used for the determination of the particle size distribution of such weakly cohesive materials.

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