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Norm

ISO 11274:2019

Issue date: 2019 09 21

Soil quality — Determination of the water-retention characteristic — Laboratory methods

This document specifies laboratory methods for determination of the soil water-retention characteristic. This document applies only to measurements of the drying or desor...
Valid
Publisher:
International Organization for Standardization
Format:
Digital | 23 Pages
Language:
English

This document specifies laboratory methods for determination of the soil water-retention characteristic.

This document applies only to measurements of the drying or desorption curve.

Four methods are described to cover the complete range of soil water pressures as follows:

a) method using sand, kaolin or ceramic suction tables for determination of matric pressures from 0 kPa to -50 kPa;

b) method using a porous plate and burette apparatus for determination of matric pressures from 0 kPa to -20 kPa;

c) method using a pressurized gas and a pressure plate extractor for determination of matric pressures from -5 kPa to -1 500 kPa;

d) method using a pressurized gas and pressure membrane cells for determination of matric pressures from -33 kPa to -1 500 kPa.

Guidelines are given to select the most suitable method in a particular case.

ISO 11274:2019
2019 09 21
Soil quality — Determination of the water-retention characteristic — Laboratory methods
Norm
ISO 11274:1998/Cor 1:2009
2009 07 24
Soil quality — Determination of the water-retention characteristic — Laboratory methods — Technical ...
Norm
ISO 11274:1998
1998 06 18
Soil quality — Determination of the water-retention characteristic — Laboratory methods
Norm