
ISO 11274:2019
ISO 11274:2019 Soil quality – Determination of the water-retention characteristic – Laboratory methods
CDN $259.00
Description
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 ‚àí50 kPa;
b) method using a porous plate and burette apparatus for determination of matric pressures from 0 kPa to ‚àí20 kPa;
c) method using a pressurized gas and a pressure plate extractor for determination of matric pressures from ‚àí5 kPa to ‚àí1 500 kPa;
d) method using a pressurized gas and pressure membrane cells for determination of matric pressures from ‚àí33 kPa to ‚àí1 500 kPa.
Guidelines are given to select the most suitable method in a particular case.
Edition
2
Published Date
2019-09-21
Status
PUBLISHED
Pages
23
Format 
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Abstract
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 ‚àí50 kPa;
b) method using a porous plate and burette apparatus for determination of matric pressures from 0 kPa to ‚àí20 kPa;
c) method using a pressurized gas and a pressure plate extractor for determination of matric pressures from ‚àí5 kPa to ‚àí1 500 kPa;
d) method using a pressurized gas and pressure membrane cells for determination of matric pressures from ‚àí33 kPa to ‚àí1 500 kPa.
Guidelines are given to select the most suitable method in a particular case.
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