标准编号：ISO 11274:2019
中文名称：土壤质量 水保持特性的测定 实验室法
英文名称：Soil quality — Determination of the water-retention characteristic — Laboratory methods
发布日期：2019-09
标准范围
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.
立即下载标准文件