13.080.40 土壤的水文特性 标准查询与下载



共找到 147 条与 土壤的水文特性 相关的标准,共 10

This test method has been designed principally for granular carriers with LHC greater than 5.0 %. The incremental amount of suitable fluid added can be adjusted down as needed for carriers with LHC less than 5.0 %. This test method is applicable to granules in the range from 4 to 100 mesh (4.75 to 0.150 mm).1.1 This test method is used to determine the liquid holding capacity (LHC) of granular carriers.1.2 The values stated in either SI or inch-pound units are to be regarded as standard. The values given in parentheses are for information only.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Section .

Standard Test Method for Liquid Holding Capacity of Granular Carriers

ICS
13.080.40
CCS
B11
发布
2001
实施

The determination of the water-content, or moisture content, of soil is one of the fundamental needs in the soil physics and hydrology disciplines. The need arises from requirements for defining the optimal time for irrigation, the infiltration rate, the soil-moisture flux, contaminant transport rates, and evaluating the potential for leakage from a waste site or a surface or subsurface barrier. The TDR application covered in this test method is that used for point measurements of moisture content in soil. The application is either through manual insertion into the soil or by burying a probe in the subsurface to acquire moisture content data at a specific location. In addition, core samples may be tested with TDR at a drill site to acquire real-time soil moisture data.1.1 This test method covers the determination of water content (or moisture content) in soil by the use of the electromagnetic technique called Time-Domain Reflectometry (TDR).1.2 This test method was written to detail the procedure for conventional TDR measurements of soil. Other TDR applications exist for the purpose of quantifying water content in soil and are not covered here, such as flat probe technologies and wetting front advance methods.1.3 Commercial TDR applications exist which automate the TDR methodology and are not detailed in this test method. It is likely that overlap exists in the automated commercial systems versus this applied method, and the user is encouraged to adhere to this test method when applicable.1.4 This test method is one of a series on vadose zone characterization methods. Other standards have been prepared on vadose zone characterization techniques.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Determination of Water (Moisture) Content of Soil by the Time-Domain Reflectometry (TDR) Method

ICS
13.080.40
CCS
P13
发布
2000
实施

This Standard specifies laboratory methods for determination of the soil water-retention characteristics. This Standard applies only to measurements of the drying or desorption curve. Four methods are described to cover the complete range of soil water pressures. Guidelines are given to select the most suitable method in a particular case.

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

ICS
13.080.40
CCS
发布
1999-05-10
实施
1999-02-02

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

ICS
13.080.40
CCS
B11
发布
1999-01-15
实施
1999-01-15

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

ICS
13.080.40
CCS
发布
1999-01-15
实施
1999-01-15

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 - Physical methods - Determination of dry bulk density

ICS
13.080.40
CCS
B11
发布
1999-01-15
实施
1999-01-15

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 - Physical methods - Laboratory methods

ICS
13.080.40
CCS
B11
发布
1999-01-15
实施
1999-01-15

Soil quality. Determination of dry bulk density.

ICS
13.080.40
CCS
B10
发布
1998-09-01
实施
1998-09-05

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

ICS
13.080.40
CCS
B11
发布
1998-09-01
实施
1998-09-05

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

ICS
13.080.40
CCS
Z18;B10
发布
1998-07
实施

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

ICS
13.080.40
CCS
Z18;B10
发布
1998-07
实施

This International Standard specifies an in situ method for the determination of water content in the unsaturated zone of soils using a neutron depth probe.

Soil quality - Determination of water content in the unsaturated zone - Neutron depth probe method

ICS
13.080.40
CCS
发布
1997-08-06
实施
1997-05-01

This International Standard specifies methods for the determination of pore water pressure in both unsaturated and saturated soil using tensiometers.

Soil quality - Determination of pore water pressure - Tensiometer method

ICS
13.080.40
CCS
发布
1997-08-06
实施
1997-05-01

The document specifies a method for the determination of the dry matter content and water content of soil samples on a mass basis. This method can be applied to all types of soil samples. Different procedures are specified for air-dried soil samples (samples pretreated and field-moist soil samples). For the determination of soil water content on a volume basis refer to ISO 11461.

Soil quality - Determination of dry matter and water content on a mass basis - Gravimetric method (ISO 11465:1993)

ICS
13.080.40
CCS
B11
发布
1996-12
实施

Non-destructive method suitable for repeated measurements.

Soil quality. Physical methods. Determination of water content in the unsaturated zone. Neutron depth probe method

ICS
13.080.40
CCS
B11
发布
1996-08-15
实施
1996-08-15

Soil quality. Determination of water content of the unsaturated zone. Neutron depth probe method.

ICS
13.080.40
CCS
B11
发布
1996-06-01
实施
1996-06-20

Applicable to both saturated and unsaturated soils.

Soil quality - Physical methods - Determination of pore water pressure - Tensiometer method

ICS
13.080.40
CCS
B11
发布
1996-04-15
实施
1996-04-15

Specifies a non-destructive method for the determination of water content in the unsaturated zone of soils using a neutron depth probe. Water content profiles can be obtained by measuring at a series of depths of soil.

Soil-quality - Determination of water content in the unsaturated zone - Neutron depth probe method

ICS
13.080.40
CCS
B11
发布
1995-12
实施

Soil quality. Determination of pore water pressure. Tensiometer method.

ICS
13.080.40
CCS
Z18
发布
1995-11-01
实施
1995-11-20

Describes methods for the determination of pore water pressure (point measurements) in unsaturated and saturated soil using tensiometers. Applicable for in situ measurements in the field and, e. g. soil cores, used in experimental examinations.

Soil quality - Determination of pore water pressure - Tensiometer method

ICS
13.080.40
CCS
B11
发布
1995-09
实施



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