Tagasi

ISO 11274:2019

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

Üldinfo
Kehtiv alates 20.09.2019
Direktiivid või määrused
puuduvad
Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
20.09.2019
Põhitekst
24.07.2009
Parandus
Põhitekst
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.
*
*
*
PDF
131,11 € koos KM-ga
Paber
131,11 € koos KM-ga
Standardi monitooring