ASTM E3373-24
(Test Method)Standard Test Method for Scour of Hydrodynamic Separators and Settling Devices
Standard Test Method for Scour of Hydrodynamic Separators and Settling Devices
SIGNIFICANCE AND USE
5.1 This test method provides test results for evaluating the potential for scour of sediment captured within a MTD in online and offline configurations.
5.2 This test method will determine if an MTD can meet the scour performance requirements prescribed by an associated verification protocol or local AHJ requirements.
SCOPE
1.1 This test method covers the testing of hydrodynamic stormwater separators and underground settling devices as it relates to the measurement of the resuspension and washout (scour) of previously captured sediment.
1.2 Units tested shall be of a size commonly manufactured and available for purchase. In order to facilitate testing it is permissible to substitute alternate materials for the housing and structural components of the test units if operational components are at full size, with identical dimensions, configurations and materials specified for commercial use. Scale models are not permissible.
1.3 The test method provides a means of evaluating retention of suspended solids previously captured with a manufactured treatment device (MTD) that is placed as an offline or online treatment device along storm drain pipe lines. It provides criteria in which to evaluate whether the MTD is appropriate for installation in offline or online conditions.
1.4 This test method provides the means for evaluating the scour potential for both offline and online conditions.
1.5 Units—The values stated in inch-pound units are to be regarded as standard, except for methods to establish and report sediment concentration and particle size. It is convention to exclusively describe sediment concentration in mg/L and particle size in mm or μm, both of which are SI units. The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. Reporting of test results in units other than inch-pound units shall not be regarded as non-conformance with this test method.
1.6 This test method may be subject to specific requirements set by a Quality Assurance Project Plan, a specific verification protocol, or Authority Having Jurisdiction (AHJ). It is advised to review one or all of the above to ensure compliance
1.7 Acceptance of test results attained according to this specification may be subject to specific requirements set by a Quality Assurance Project Plan, a specific verification protocol, or Authority Having Jurisdiction (AHJ). It is advised to review one or all of the above to ensure compliance.
1.8 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.
1.9 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.
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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: E3373 − 24
Standard Test Method for
1
Scour of Hydrodynamic Separators and Settling Devices
This standard is issued under the fixed designation E3373; 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 1.7 Acceptance of test results attained according to this
specification may be subject to specific requirements set by a
1.1 This test method covers the testing of hydrodynamic
Quality Assurance Project Plan, a specific verification protocol,
stormwater separators and underground settling devices as it
or Authority Having Jurisdiction (AHJ). It is advised to review
relates to the measurement of the resuspension and washout
one or all of the above to ensure compliance.
(scour) of previously captured sediment.
1.8 This standard does not purport to address all of the
1.2 Units tested shall be of a size commonly manufactured
safety concerns, if any, associated with its use. It is the
and available for purchase. In order to facilitate testing it is
responsibility of the user of this standard to establish appro-
permissible to substitute alternate materials for the housing and
priate safety, health, and environmental practices and deter-
structural components of the test units if operational compo-
mine the applicability of regulatory limitations prior to use.
nents are at full size, with identical dimensions, configurations
1.9 This international standard was developed in accor-
and materials specified for commercial use. Scale models are
dance with internationally recognized principles on standard-
not permissible.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.3 The test method provides a means of evaluating reten-
mendations issued by the World Trade Organization Technical
tion of suspended solids previously captured with a manufac-
Barriers to Trade (TBT) Committee.
tured treatment device (MTD) that is placed as an offline or
online treatment device along storm drain pipe lines. It
2. Referenced Documents
provides criteria in which to evaluate whether the MTD is
2
2.1 ASTM Standards:
appropriate for installation in offline or online conditions.
C1745/C1745M Test Method for Measurement of Hydraulic
1.4 This test method provides the means for evaluating the
Characteristics of Hydrodynamic Stormwater Separators
scour potential for both offline and online conditions.
and Underground Settling Devices
C1746/C1746M Test Method for Measurement of Sus-
1.5 Units—The values stated in inch-pound units are to be
pended Sediment Removal Efficiency of Hydrodynamic
regarded as standard, except for methods to establish and
Stormwater Separators and Underground Settling Devices
report sediment concentration and particle size. It is convention
D2216 Test Methods for Laboratory Determination of Water
to exclusively describe sediment concentration in mg/L and
(Moisture) Content of Soil and Rock by Mass
particle size in mm or μm, both of which are SI units. The SI
D3977 Test Methods for Determining Sediment Concentra-
units given in parentheses are mathematical conversions,
tion in Water Samples
which are provided for information purposes only and are not
D4959 Test Method for Determination of Water Content of
considered standard. Reporting of test results in units other
Soil By Direct Heating
than inch-pound units shall not be regarded as non-
D5241 Practice for Micro-Extraction of Water for Analysis
conformance with this test method.
of Volatile and Semi-Volatile Organic Compounds in
1.6 This test method may be subject to specific requirements
Water
set by a Quality Assurance Project Plan, a specific verification
D6889 Practice for Fast Screening for Volatile Organic
protocol, or Authority Having Jurisdiction (AHJ). It is advised
Compounds in Water Using Solid Phase Microextraction
to review one or all of the above to ensure compliance
(SPME)
D6913/D6913M Test Methods for Particle-Size Distribution
(Gradation) of Soils Using Sieve Analysis
1
This test method is under the jurisdiction of ASTM Committee E64 on
Stormwater Control Measures and is the direct responsibility of Subcommittee
2
E64.01 on Lab Evaluation. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Jan. 1, 2024. Published January 2024. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2023. Last previous edition approved in 2023 as
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E3373 − 23 E3373 − 24
Standard Test Method for
1
Scour of Hydrodynamic Separators and Settling Devices
This standard is issued under the fixed designation E3373; 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
1.1 This test method covers the testing of hydrodynamic stormwater separators and underground settling devices as it relates to
the measurement of the resuspension and washout (scour) of previously captured sediment.
1.2 Units tested shall be of a size commonly manufactured and available for purchase. In order to facilitate testing it is permissible
to substitute alternate materials for the housing and structural components of the test units if operational components are at full
size, with identical dimensions, configurations and materials specified for commercial use. Scale models are not permissible.
1.3 The test method provides a means of evaluating retention of suspended solids previously captured in with a manufactured
treatment device (MTD) that is placed as an offline or online treatment device along storm drain pipe lines. It provides criteria in
which to evaluate whether the MTD is appropriate for installation in offline or online conditions.
1.4 This test method provides the means for evaluating the scour potential for both offline and online conditions.
1.5 Units—The values stated in inch-pound units are to be regarded as standard, except for methods to establish and report
sediment concentration and particle size. It is convention to exclusively describe sediment concentration in mg/L and particle size
in mm or μm, both of which are SI units. The SI units given in parentheses are mathematical conversions, which are provided for
information purposes only and are not considered standard. Reporting of test results in units other than inch-pound units shall not
be regarded as non-conformance with this test method.
1.6 This test method may be subject to specific requirements set by a Quality Assurance Project Plan, a specific verification
protocol, or Authority Having Jurisdiction (AHJ). It is advised to review one or all of the above to ensure compliance
1.7 Acceptance of test results attained according to this specification may be subject to specific requirements set by a Quality
Assurance Project Plan, a specific verification protocol, or Authority Having Jurisdiction (AHJ). It is advised to review one or all
of the above to ensure compliance.
1.8 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.
1.9 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.
1
This test method is under the jurisdiction of ASTM Committee E64 on Stormwater Control Measures and is the direct responsibility of Subcommittee E64.01 on Lab
Evaluation.
Current edition approved March 15, 2023Jan. 1, 2024. Published March 2023January 2024. Originally approved in 2023. Last previous edition approved in 2023 as
E3373 – 23. DOI: 10.1520/E3373-23.10.1520/E3373-24.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E3373 − 24
2. Referenced Documents
2
2.1 ASTM Standards:
C1745/C1745M Test Method for Measurement of Hydraulic Characteristics of Hydrodynamic Stormwater Separators and
Underground Settling Devices
C1746/C1746M Test Method for Measurement of Suspended Sediment Removal Efficiency of Hydrodynamic Stormwater
Separators and Underground Settling Devices
D2216 Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass
D3977 Test Methods for Determining Sediment Concentration in Water Samples
D4959 Test Method for Determination of Water Content of Soil By Direct Heating
D5241 Practice for Micro-Extraction of Water for Analysis of Volatile and Semi-Volatile Organic Com
...
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