ISO-11274 › Soil quality - Determination of the water-retention characteristic - Laboratory methods
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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.
To find similar documents by classification:
13.080.40 (Hydrological properties of soils)
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Document Number
ISO 11274:2019
Revision Level
2ND EDITION
Status
Current
Publication Date
Sept. 1, 2019
Committee Number
ISO/TC 190/SC 3