Reference number
ISO 11274:2019
International Standard
ISO 11274:2019
Soil quality — Determination of the water-retention characteristic — Laboratory methods
Edition 2
2019-09
Preview
ISO 11274:2019
68256
недоступно на русском языке
Опубликовано (Версия 2, 2019)

ISO 11274:2019

ISO 11274:2019
68256
Язык
Формат
CHF 129
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Тезис

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.

Общая информация

  •  : Опубликовано
     : 2019-09
    : Систематический пересмотр международного стандарта [90.20]
  •  : 2
  • ISO/TC 190/SC 3
    13.080.40 
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