ASTM D8152-18
(Practice)Standard Practice for Measuring Field Infiltration Rate and Calculating Field Hydraulic Conductivity Using the Modified Philip Dunne Infiltrometer Test
Standard Practice for Measuring Field Infiltration Rate and Calculating Field Hydraulic Conductivity Using the Modified Philip Dunne Infiltrometer Test
SIGNIFICANCE AND USE
5.1 This practice shall only be used on soils having infiltration rates ranging from 2.5 mm/h (field hydraulic conductivity of 6.9 × 10-7 m/s) to 15000 mm/h (field hydraulic conductivity of 4.0 × 10-3 m/s).
5.2 This practice is useful for field measurement of the infiltration rate and calculation of field hydraulic conductivity of soils. It was initially developed for stormwater treatment applications, and has been used to design, verify the construction of, and perform annual testing on surface drainage applications such as rain gardens or storm water collection systems (1). Other suitable applications include evaluation of potential septic-tank disposal fields (ASTM D5879 and D5921), leaching and drainage efficiencies, irrigation requirements, erosion potential, forestry, agriculture, and water spreading and recharge, among other applications. This test is not intended for use in hydraulic barriers/seals such as landfill liners, nuclear waste repositories, or the core of a dam. This test is also not intended for use in soils that experience changes in volume during infiltration, such as collapsible or expansive soils.
5.3 Field hydraulic conductivity can only be calculated when the hydraulic boundary conditions are known, such as hydraulic gradient and the extent of lateral flow of water, or these can be reliably estimated.
Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.
5.4 A mathematical analysis has been developed for this test that follows the Green-Ampt a...
SCOPE
1.1 This practice describes a procedure for field measurement of the infiltration rate of liquid (typically water) into soils using the modified Philip Dunne (MPD) infiltrometer. The data from the field measurement is then used to calculate the field hydraulic conductivity. Soils should be regarded as natural occurring fine or coarse-grained soils or processed materials or mixtures of natural soils and processed materials, or other porous materials, and which are basically insoluble and are in accordance with requirements of 5.1.
1.2 This practice may be conducted at the ground surface or at given depths in pits, on bare soil or with vegetation in place, depending on the conditions for which infiltration rates are desired. However, this practice cannot be conducted where the test surface is at or below the groundwater table, a perched water table, or the capillary fringe.
1.3 This practice is for soils within a range of infiltration rate range defined in 5.1, as long as an adequate seal can be made between the MPD Infiltrometer base and the soil being tested. In highly permeable soils, readings can be taken at shorter intervals, to ensure that enough data are collected to determine the infiltration rate.
1.4 The field measurement is a falling head test that can be performed relatively quickly (30 to 60 minutes) in silty sand or clayey sand soils suitable for stormwater infiltration practices. It is suitable for testing several locations across a site, to characterize the spatial variability of the infiltration rate throughout the site.
1.5 The field measurement can be used to measure the infiltration rate, which can be used to calculate the field hydraulic conductivity. The field hydraulic conductivity can be used as an index to compare the suitability of soils for use in the development of surface drainage applications (for example, rain gardens or stormwater fills).
1.6 Units—The values stated in SI unit...
General Information
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Standards Content (Sample)
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.
Designation:D8152 −18
Standard Practice for
Measuring Field Infiltration Rate and Calculating Field
Hydraulic Conductivity Using the Modified Philip Dunne
1
Infiltrometer Test
This standard is issued under the fixed designation D8152; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.6 Units—The values stated in SI units are to be regarded
as the standard. No other units of measurement are to be
1.1 This practice describes a procedure for field measure-
included in this standard.
mentoftheinfiltrationrateofliquid(typicallywater)intosoils
usingthemodifiedPhilipDunne(MPD)infiltrometer.Thedata 1.7 All observed and calculated values shall conform to the
from the field measurement is then used to calculate the field guidelines for significant digits and rounding established in
hydraulic conductivity. Soils should be regarded as natural Practice D6026.
occurringfineorcoarse-grainedsoilsorprocessedmaterialsor
1.8 The procedures used to specify how data are collected/
mixtures of natural soils and processed materials, or other
recorded or calculated in this standard are regarded as the
porous materials, and which are basically insoluble and are in
industry standard. In addition, they are representative of the
accordance with requirements of 5.1.
significant digits that generally should be retained. The proce-
1.2 Thispracticemaybeconductedatthegroundsurfaceor dures used do not consider material variation, purpose for
atgivendepthsinpits,onbaresoilorwithvegetationinplace, obtaining the data, special purpose studies, or any consider-
depending on the conditions for which infiltration rates are ations for the user’s objectives; and it is common practice to
desired. However, this practice cannot be conducted where the increase or reduce significant digits of reported data to be
test surface is at or below the groundwater table, a perched commensuratewiththeseconsiderations.Itisbeyondthescope
water table, or the capillary fringe. of this standard to consider significant digits used in analytical
methods for engineering design.
1.3 This practice is for soils within a range of infiltration
1.9 This standard does not purport to address all of the
rate range defined in 5.1, as long as an adequate seal can be
safety concerns, if any, associated with its use. It is the
made between the MPD Infiltrometer base and the soil being
responsibility of the user of this standard to establish appro-
tested. In highly permeable soils, readings can be taken at
priate safety, health, and environmental practices and deter-
shorter intervals, to ensure that enough data are collected to
mine the applicability of regulatory limitations prior to use.
determine the infiltration rate.
1.10 This international standard was developed in accor-
1.4 The field measurement is a falling head test that can be
dance with internationally recognized principles on standard-
performedrelativelyquickly(30to60minutes)insiltysandor
ization established in the Decision on Principles for the
clayey sand soils suitable for stormwater infiltration practices.
Development of International Standards, Guides and Recom-
It is suitable for testing several locations across a site, to
mendations issued by the World Trade Organization Technical
characterize the spatial variability of the infiltration rate
Barriers to Trade (TBT) Committee.
throughout the site.
1.5 The field measurement can be used to measure the
2. Referenced Documents
infiltration rate, which can be used to calculate the field
2
2.1 ASTM Standards:
hydraulicconductivity.Thefieldhydraulicconductivitycanbe
D653Terminology Relating to Soil, Rock, and Contained
used as an index to compare the suitability of soils for use in
Fluids
thedevelopmentofsurfacedrainageapplications(forexample,
D2216TestMethodsforLaboratoryDeterminationofWater
rain gardens or stormwater fills).
(Moisture) Content of Soil and Rock by Mass
1
ThistestmethodisunderthejurisdictionofASTMCommitteeD18onSoiland
2
Rock and is the direct responsibility of Subcommittee D18.04 on Hydrologic For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Properties and Hydraulic Barriers. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved July 1, 2018. Published August 2018. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
D8152-18. the ASTM website.
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