ASTM D8203-18
(Test Method)Standard Test Method for Determination of the Horizontal Water Flow Rate of a Geosynthetic Screening Material, Product, or Device
Standard Test Method for Determination of the Horizontal Water Flow Rate of a Geosynthetic Screening Material, Product, or Device
SIGNIFICANCE AND USE
5.1 The test method simulates the flow conditions (without sediment) applicable to sediment retention devices exposed to sheet-flow runoff. Horizontal flow rate is an inherent (index) property of sediment retention devices (SRDs), and can be used to control quality and to assess the effects of product changes.
SCOPE
1.1 This test method covers test procedures for determining the horizontal water flow rate through a geosynthetic or geosynthetic-enhanced screening device, such as a sediment retention device (SRD), under a constant-head pressure. The test is conducted with potable water.
1.2 This test is intended to be used for quality control and product development efforts, but should not be considered a performance test.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 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.
General Information
Standards Content (Sample)
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Designation: D8203 − 18
Standard Test Method for
Determination of the Horizontal Water Flow Rate of a
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Geosynthetic Screening Material, Product, or Device
This standard is issued under the fixed designation D8203; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
3.1 Definitions:
1.1 This test method covers test procedures for determining
3.1.1 For definitions of common technical terms used in this
the horizontal water flow rate through a geosynthetic or
standard, refer to Terminology D4439.
geosynthetic-enhanced screening device, such as a sediment
3.2 Definitions of Terms Specific to This Standard:
retention device (SRD), under a constant-head pressure. The
3.2.1 geosynthetic screening device, n—geosynthetic or
test is conducted with potable water.
geosynthetic-enhanced materials, products, or devices that
1.2 This test is intended to be used for quality control and
primarily provide the screening function, such as a sediment
product development efforts, but should not be considered a
retention device (SRD).
performance test.
3.2.2 screening—a geosynthetic, placed across the path of a
1.3 The values stated in SI units are to be regarded as the
flowing fluid (ground water, surface water, wind), carrying
standard. The values given in parentheses are provided for
particles in suspension, provides screening when it retains
information purposes only.
some or all fine soil particles while allowing the fluid to pass
through. After some period of time, particles accumulate
1.4 This standard does not purport to address all of the
against the screen, which requires that the screen be able to
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- withstand pressures generated by the accumulated particles and
the increasing pressure from accumulated fluid. (See Guide
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. D5819.)
1.5 This international standard was developed in accor-
3.2.3 sediment retention device (SRD), n—a material,
dance with internationally recognized principles on standard-
product, or device designed to intercept sediment-laden flow,
ization established in the Decision on Principles for the
screening out suspended solids and reducing the velocity of the
Development of International Standards, Guides and Recom- flow, causing transported sediments to settle out. Typical SRDs
mendations issued by the World Trade Organization Technical
include silt fences, as well as natural or manmade materials
Barriers to Trade (TBT) Committee.
encapsulated in geosynthetic fabrics, meshes, or nettings such
as wattles, filter logs, fiber filtration tubes, fiber rolls, and
2. Referenced Documents compost socks.
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2.1 ASTM Standards:
4. Summary of Test Method
D4354 Practice for Sampling of Geosynthetics and Rolled
4.1 A test specimen is positioned vertically across the mouth
Erosion Control Products (RECPs) for Testing
of a “box” reservoir, and potable water is introduced upstream
D4439 Terminology for Geosynthetics
and maintained at a predetermined constant head as the water
D5819 Guide for Selecting Test Methods for Experimental
is allowed to seep through the specimen. Once a steady-state
Evaluation of Geosynthetic Durability
flow condition is established, a discharge volume and the
associated time are measured.
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5. Significance and Use
This test method is under the jurisdiction of ASTM Committee D35 on
Geosynthetics and is the direct responsibility of Subcommittee D35.05 on Geosyn-
5.1 The test method simulates the flow conditions (without
thetic Erosion Control.
sediment) applicable to sediment retention devices exposed to
Current edition approved June 1, 2018. Published June 2018. Originally
approved in 2018. DOI: 10.1520/D8203-18.
sheet-flow runoff. Horizontal flow rate is an inherent (index)
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
property of sediment retention devices (SRDs), and can be
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
used to control quality and to assess the effects of product
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. changes.
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D8203 − 18
6. Apparatus 8. Procedure
6.1 Upper “Box” Reservoir, constructed from marine-grade 8.1 Test Setup
...
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