ASTM D5141-96(2004)
(Test Method)Standard Test Method for Determining Filtering Efficiency and Flow Rate of a Geotextile for Silt Fence Application Using Site-Specific Soil
Standard Test Method for Determining Filtering Efficiency and Flow Rate of a Geotextile for Silt Fence Application Using Site-Specific Soil
SCOPE
1.1 This test method is used to determine the filtering efficiency and the flow rate of a geotextile used exclusively in silt fence or silt barrier application. Note 1-The terms silt fence and silt barrier are used synonomously.
1.1.1 The results are shown as a percentage for filtering efficiency and cubic metres per square metre per minute (m /m /min) or gallons per square foot per minute (gal/ ft /min) for flow rate.
1.1.2 The filtering efficiency indicates the percent of sediment removed from sediment-laden water.
1.1.3 The flow rate is the average rate of passage of the sediment-laden water through the geotextile.
1.2 This test method requires several specialized pieces of equipment, such as an integrated water sampler and an analytical balance, and site specific soil from the construction project.
1.3 The values stated in SI units are the standard, while the inch-pound units are provided for information. The values expressed in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any way.
1.4 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.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D 5141 – 96 (Reapproved 2004)
Standard Test Method for
Determining Filtering Efficiency and Flow Rate of a
Geotextile for Silt Fence Application Using Site-Specific
Soil
This standard is issued under the fixed designation D5141; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope D653 Terminology Relating to Soil, Rock, and Contained
Fluids
1.1 This test method is used to determine the filtering
D4439 Terminology for Geosynthetics
efficiency and the flow rate of a geotextile used exclusively in
D4354 Practice for Sampling of Geosynthetics for Testing
silt fence or silt barrier application.
D4759 Practice for Determining the Specification Con-
NOTE 1—The terms silt fence and silt barrier are used synonomously.
formance of Geosynthetics
1.1.1 The results are shown as a percentage for filtering 2.2 American Public Health Association (APHA) Standard:
efficiency and cubic metres per square metre per minute 208D TotalNonfiltrableResidueDriedat103–105°C(Total
3 2 2 3
(m /m /min)orgallonspersquarefootperminute(gal/ft /min) Suspended Matter)
for flow rate.
3. Terminology
1.1.2 The filtering efficiency indicates the percent of sedi-
ment removed from sediment-laden water. 3.1 Definitions:
3.1.1 filtration—See filter.
1.1.3 The flow rate is the average rate of passage of the
sediment-laden water through the geotextile. 3.1.2 filter—See Terminology D653.
3.1.3 geosynthetic, n—a planar product manufactured from
1.2 This test method requires several specialized pieces of
equipment, such as an integrated water sampler and an ana- polymeric material used with foundation soil, rock, earth, or
any other geotechnical engineering related material as an
lytical balance, and site specific soil from the construction
project. integral part of a man-made project, structure, or system. (See
1.3 The values stated in SI units are the standard, while the Practice D4759.)
3.1.4 geotextile, n—any permeable textile material used
inch-pound units are provided for information. The values
expressed in each system may not be exact equivalents; with foundation, soil, rock, earth, or any other geotechnical
engineering related material, as an integral part of a man-made
therefore,eachsystemmustbeusedindependentlyoftheother,
without combining values in any way. project, structure, or system.
3.1.5 performance property, n—a result obtained by con-
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the ducting a performance test.
3.1.6 performance test, n—in geosynthetics, a laboratory
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- procedure which simulates selected field conditions which can
be used in design.
bility of regulatory limitations prior to use.
3.1.7 For definitions of other terms relating to geosynthet-
2. Referenced Documents
ics, refer to Terminology D4439. For definitions of textile
2.1 ASTM Standards: terms, refer to Terminology D123. For definitions of soil
D123 Terminology Relating to Textile Materials terms, refer to Terminology D653.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 filtering effıciency, FE, n—in geosynthetics, the per-
This test method is under the jurisdiction of ASTM Committee D35 Geosyn-
cent of sediment removed from sediment-laden water by a
theticsandisthedirectresponsibilityofSubcommitteeD35.03onPermeabilityand
geotextile over a specified period of time.
Filtration.
Current edition approved May 10, 1996. Published June 1996. Originally
approved in 1991. Last previous edition approved in 1999 as D5141–91(1999).
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican Public HealthAssociation (APHA), 1015 Eighteenth
the ASTM website. St. NW, Washington, DC 20036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 5141 – 96 (2004)
3 −2 −1
3.2.2 flow rate, FR [L L T ], n—in geosynthetics, the 6.6 Stirrer, such as a stirring rod on a portable electric drill.
volume of fluid per unit time, expressed as an average, which 6.7 Sediment-Free Water, containing no flocculent agents.
passes through a cross-sectional plane perpendicular to the
NOTE 3—Flocculent agents used in water treatment may cause errone-
fluid flow.
ous results by affecting the settling rate of soil particles in the water.
3.2.3 flume, n—an apparatus that carries a liquid to an
6.8 Soil, site-specific.
outlet.
6.9 Gooch Crucible.
3.2.4 silt fence, n—in geosynthetics, a temporary sediment
6.10 Membrane Filter Apparatus.
control measure used to remove soil from runoff.
6.11 Vacuum Pump.
6.12 Planchet, aluminum or stainless steel.
4. Summary of Test Method
6.13 Desiccator.
4.1 A geotextile specimen is placed across a flume while
6.14 Analytical Balance, sensitivity of 0.00001 g.
sediment-laden water is passed through the specimen.
4.1.1 The time that water flows through the geotextile and
7. Sampling
the amount of soil passed by the geotextile are measured. The
7.1 Geotextile:
amount of soil retained, filtering efficiency, and flow rate are
7.1.1 Lot Sample—Divide the product into lots and take the
calculated from these measured values.
lot sample as directed in Practice D4354.
4.2 Soil from the construction project should be used in this
7.1.2 Laboratory Sample—After first discarding a mini-
test method.
mum of 1 m (3.3 ft) of geotextile from the end of the roll, cut
5. Significance and Use
off sufficient length of the roll to get the appropriate number of
test specimens. If holes or damaged areas are evident, then
5.1 This test method is used to determine the filtering
damaged material should be discarded and additional material
efficiencyandflowrateofageotextileusedinasiltfenceorsilt
sampled.
barrier installation for specific soil conditions.
7.1.3 Test Specimens—Cuttheappropriatenumberofspeci-
5.2 This test method may be used for the design of a silt
mens to be tested from the machine direction of the laboratory
fenceorsiltbarriertomeetrequirementsofregulatoryagencies
sample by a random method. Each test specimen should be cut
in filtering efficiency or flow rate for specific soil conditions.
(1 m long by 0.3 m wide (3.3 ft long by 12 in. wide)) to fit the
5.2.1 Thedesignercanusethistestmethodtodeterminethe
flume.
spacing between silt fences or silt barriers.
5.3 Thistestmethodisintendedforperformanceevaluation,
NOTE 4—No specimen should be within 0.2 m (6 in.) of a selvage.
as the results will depend on the specific soil evaluated. It is
7.2 Soil—Obtain representative samples of the site-specific
recommendedthattheuserorrepresentativeperformthetestto
soil that is significant to the design of the silt barriers or silt
pre-approved products, as geotextile manufacturers are not
fencesontheconstructionproject.Thesizeandtypeofsample
typically equipped to handle or test soil requirements.
requiredisdependentuponthenumberofteststobeperformed
5.4 This test method provides a means of evaluating geo-
and the percent of coarse particles in the sample.
textiles with different soils under various conditions that
simulate the conditions that exist in
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.