13.080.40 土壤的水文特性 标准查询与下载
共找到 145 条与 土壤的水文特性 相关的标准，共 10 页
Standard Test Method for Determination of Water Content of Soil By Direct Heating
- ICS
- 13.080.40
- CCS
- 发布
- 2024-02-01
- 实施
1.1 This practice covers the visual determination of the degree of humification of peat and other highly organic soils by visually evaluating the color of the water expelled upon compression. This practice is not used for the determination of the degree of organic decomposition of organic matter in mineral soils. 1.2 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects. The word “Standard” in the title of this document means only that the document has been approved though the ASTM consensus process. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Practice for Estimating the Degree of Humification of Peat and Other Organic Soils (Visual/Manual Method)
- ICS
- 13.080.40
- CCS
- 发布
- 2023-02-01
- 实施
Water and Soil Conservation Monitoring Technical Regulations
- ICS
- 13.080.40
- CCS
- B11
- 发布
- 2022-08-02
- 实施
- 2022-11-02
Soil quality — Characterization of contaminated soil related to groundwater protection
- ICS
- 13.080.40
- CCS
- 发布
- 2021-12-03
- 实施
Soil quality — Characterization of contaminated soil related to groundwater protection
- ICS
- 13.080.40
- CCS
- 发布
- 2021-12-03
- 实施
Soil quality — Determination of the water-retention characteristic — Laboratory methods
- ICS
- 13.080.40
- CCS
- 发布
- 2021-10-15
- 实施
Soil quality — Determination of the water-retention characteristic — Laboratory methods
- ICS
- 13.080.40
- CCS
- 发布
- 2021-10-15
- 实施
Soil quality — Determination of pore water pressure —Tensiometer method
- ICS
- 13.080.40
- CCS
- 发布
- 2021-10-08
- 实施
Soil quality — Determination of soil water content as a volume fraction using coring sleeves — Gravimetric method
- ICS
- 13.080.40
- CCS
- 发布
- 2021-10-08
- 实施
Soil quality — Determination of pore water pressure —Tensiometer method
- ICS
- 13.080.40
- CCS
- 发布
- 2021-10-08
- 实施
Soil quality — Determination of hydraulic conductivity of saturated porous materials using a flexible wall permeameter
- ICS
- 13.080.40
- CCS
- 发布
- 2021-10-08
- 实施
Soil quality — Determination of hydraulic conductivity of saturated porous materials using a flexible wall permeameter
- ICS
- 13.080.40
- CCS
- 发布
- 2021-10-08
- 实施
Soil quality — Determination of soil water content as a volume fraction using coring sleeves — Gravimetric method
- ICS
- 13.080.40
- CCS
- 发布
- 2021-10-08
- 实施
Soil quality－Determination of hydraulic conductivity of saturated porous materials using a rigid－wall permeameter
- ICS
- 13.080.40
- CCS
- 发布
- 20210730
- 实施
- 20210730
Soil quality－Determination of water content in the unsaturated zone(Neutron depth probe method)
- ICS
- 13.080.40
- CCS
- 发布
- 20201127
- 实施
- 20201127
Technical specifications for ecological purification of farmland runoff drainage
- ICS
- 13.080.40
- CCS
- B11
- 发布
- 2020-11-12
- 实施
- 2021-04-01
Technical specifications for runoff storage and reuse of sloping farmland
- ICS
- 13.080.40
- CCS
- B11
- 发布
- 2020-11-12
- 实施
- 2021-04-01
Soil quality ― Soil water and the unsaturated zone ―Definitions, symbols and theory
- ICS
- 13.080.40
- CCS
- 发布
- 2020-08-07
- 实施
Soil quality ― Soil water and the unsaturated zone ―Definitions, symbols and theory
- ICS
- 13.080.40
- CCS
- 发布
- 2020-08-07
- 实施
1.1 This test method covers hydraulic conductivity compatibility testing of saturated soils in the laboratory with aqueous solutions that may alter hydraulic conductivity (for example, waste related liquids) using a flexible-wall permeameter. A hydraulic conductivity test is conducted until both hydraulic and chemical equilibrium are achieved such that potential interactions between the soil specimen being permeated and the aqueous solution are taken into consideration with respect to the measured hydraulic conductivity. 1.2 This test method is applicable to soils with hydraulic conductivities less than approximately 1 × 10–8 m/s. 1.3 In addition to hydraulic conductivity, intrinsic permeability can be determined for a soil if the density and viscosity of the aqueous solution are known or can be determined. 1.4 This test method can be used for all specimen types, including undisturbed, reconstituted, remolded, compacted, etc. specimens. 1.5 A specimen may be saturated and permeated using three methods. Method 1 is for saturation with water and permeation with aqueous solution. Method 2 is for saturation and permeation with aqueous solution. Method 3 is for saturation with water, initial permeation with water, and subsequent permeation with aqueous solution. 1.6 The amount of flow through a specimen in response to a hydraulic gradient generated across the specimen is measured with respect to time. The amount and properties of influent and effluent liquids are monitored during the test. 1.7 The hydraulic conductivity with an aqueous solution is determined using procedures similar to determination of hydraulic conductivity of saturated soils with water as described in Test Methods D5084. Several test procedures can be used, including the falling headwater-rising tailwater, the constanthead, the falling headwater-constant tailwater, or the constant rate-of-flow test procedures. 1.8 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only and are not considered standard. 1.8.1 Hydraulic conductivity has traditionally been expressed in cm/s in the U.S., even though the official SI unit for hydraulic conductivity is m/s. 1.8.2 The gravitational system of inch-pound units is used when dealing with inch-pound units. In this system, the pound (lbf) represents a unit of force (weight), while the unit for mass is slugs. 1.8.3 The slug unit of mass is almost never used in commercial practice; i.e., density, balances, etc. Therefore, the standard unit for mass in this standard is either kilogram (kg) or gram (g), or both. Also, the equivalent inch-pound unit (slug) is not given/presented in parentheses. However, the use of balances or scales recording pounds of mass (lbm) or recording density in lbm/ft3 shall not be regarded as nonconformance with this standard. 1.9 This standard contains a Hazards section related to using hazardous liquids (Section 7). 1.10 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.11 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Test Method for Hydraulic Conductivity Compatibility Testing of Soils with Aqueous Solutions
- ICS
- 13.080.40
- CCS
- 发布
- 2020-02-15
- 实施
