Z18;B10 标准查询与下载

ISO 11272:2017 土壤质量 干散密度的测定

This document specifies three methods for the determination of dry bulk density of soils calculated from the mass and the volume of a soil sample. The methods involve drying and weighing a soil sample, thevolumeofwhichis eitherknown[coremethod(see4.1)] ordetermined[excavationmethod(see4.2) and clod method (see 4.4)].

Soil quality - Determination of dry bulk density

KS I ISO 11272:2005 土壤质量.干散密度的测定

이 규격은 토양의 질량 및 부피로부터 산출한 토양의 건조 부피 밀도를 측정하는 세 가지 방

Soil quality－Determination of dry bluk density

KS I ISO 11274:2005 土壤质量.水分保持特性的测定.实验室试验方法

이 규격은 토양의 수분 보유 특성을 측정하기 위한 실험실 규모의 방법에 대하여 규정한다.

Soil quality－Determination of the water retention characteristic(Laboratory method)

ISO 11274:1998 土壤质量 水分保持特性的测定 实验室试验方法

This International Standard specifies laboratory methods for determination of the soil water-retention characteristic. This International Standard 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 -5kPa to -1500kPa; d) method using a pressurized gas and pressure membrane cells for determination of matric pressures from -33kPa to -1500kPa. Guidelines are given to select the most suitable method in a particular case.

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

ISO 11272:1998 土壤质量 干散密度的测定

This International Standard describes three methods for the determination of dry bulk density of soils calculated from the mass and the volume of a soil sample. The methods involve drying and weighing a soil sample, the volume of which is either known (core method, see 4.1) or has to be determined (excavation method, see 4.2, and clod method, see 4.3).

Soil quality - Determination of dry bulk density