DSF/ISO/FDIS 11277 ( Forslag )

Jordkvalitet – Bestemmelse af kornstørrelsesfordeling i mineraljord – Sigte- og sedimentationsmetode


Status:
Forslag
Type:
Standard
Sprog:
EN

Beskrivelse

This International Standard 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
International Standard 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 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 is also realized that the chemical pre-treatments 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 is not
used for the determination of the particle size distribution of such weakly cohesive materials.

Antal sider: 45

Internationale relationer:

ICS: 13.080.20 - Jords fysiske egenskaber

Varenummer: M322477


Udvalg og komiteer

Komite

  • ISO/TC 190/SC 3
  • ISO/TC 190/SC 3/WG 14

Dansk udvalg

DS/S-471