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ASTM

ASTM C1745/C1745M-18

(Test Method)

Standard Test Method for Measurement of Hydraulic Characteristics of Hydrodynamic Stormwater Separators and Underground Settling Devices

Standard Test Method for Measurement of Hydraulic Characteristics of Hydrodynamic Stormwater Separators and Underground Settling Devices

SIGNIFICANCE AND USE
5.1 Each device has unique flow patterns and turbulence characteristics. In addition, each device exhibits a wide range of efficiencies as discharge, particle size, particle density, and flow viscosity (that is, water temperature) change. The testing procedure in Section 7 will help develop the parameters necessary to input into a function that describes the performance of a device under a wide range of application conditions.
SCOPE
1.1 This test method concerns measurement of selected hydraulic characteristics of hydrodynamic separators and underground settling devices critical to their function as stormwater treatment devices.  
1.2 Units tested shall be of a size commonly manufactured, not a scale model.  
1.3 As each stormwater treatment device is unique in design, so are its hydraulic characteristics (flow versus head and loss coefficients). A sufficient number of accurately measured data points are needed to define properly the hydraulic characteristics of each test unit. Therefore, it is imperative that the unit setup and subsequent testing methodologies be well defined and executed to ensure accurate flow and elevation data.  
1.4 This test method addresses gravity flow operation only. It does not address performance of units operating under pressurized conditions.  
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.6 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.  
1.7 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

Status
Historical
Publication Date
30-Apr-2018
ICS
13.060.30 - Sewage water
Technical Committee
E64 - Stormwater Control Measures
Drafting Committee
E64.01 - Lab Evaluation
Current Stage
Ref Project

Relations

Refers
ASTM D5389-93(2019) - Standard Test Method for Open-Channel Flow Measurement by Acoustic Velocity Meter Systems
Effective Date
01-Nov-2019
Refers
ASTM D5389-93(2013) - Standard Test Method for Open-Channel Flow Measurement by Acoustic Velocity Meter Systems
Effective Date
01-Jan-2013
Refers
ASTM D4409-95(2008) - Standard Test Method for Velocity Measurements of Water in Open Channels with Rotating Element Current Meters
Effective Date
01-Oct-2008
Refers
ASTM D5089-95(2008) - Standard Test Method for Velocity Measurements of Water in Open Channels with Electromagnetic Current Meters
Effective Date
01-Oct-2008
Refers
ASTM D5640-95(2008) - Standard Guide for Selection of Weirs and Flumes for Open-Channel Flow Measurement of Water
Effective Date
01-Oct-2008
Refers
ASTM D3858-95(2008) - Standard Test Method for Open-Channel Flow Measurement of Water by Velocity-Area Method
Effective Date
01-Oct-2008
Refers
ASTM D5413-93(2007) - Standard Test Methods for Measurement of Water Levels in Open-Water Bodies
Effective Date
15-Jun-2007
Refers
ASTM D5389-93(2007) - Standard Test Method for Open-Channel Flow Measurement by Acoustic Velocity Meter Systems
Effective Date
15-Jun-2007
Refers
ASTM D5242-92(2007) - Standard Test Method for Open-Channel Flow Measurement of Water with Thin-Plate Weirs
Effective Date
15-Jun-2007
Refers
ASTM D5089-95(2003) - Standard Test Method for Velocity Measurements of Water in Open Channels with Electromagnetic Current Meters
Effective Date
10-Jun-2003
Refers
ASTM D3858-95(2003) - Standard Test Method for Open-Channel Flow Measurement of Water by Velocity-Area Method
Effective Date
10-Jun-2003
Refers
ASTM D5640-95(2003) - Standard Guide for Selection of Weirs and Flumes for Open-Channel Flow Measurement of Water
Effective Date
10-Jun-2003
Refers
ASTM D4409-95(2003) - Standard Test Method for Velocity Measurements of Water in Open Channels with Rotating Element Current Meters
Effective Date
10-Jun-2003
Refers
ASTM D5242-92(2001) - Standard Test Method for Open-Channel Flow Measurement of Water with Thin-Plate Weirs
Effective Date
01-Jan-2001
Refers
ASTM D5089-95(1999) - Standard Test Method for Velocity Measurements of Water in Open Channels with Electromagnetic Current Meters
Effective Date
10-Jun-1999

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ASTM C1745/C1745M-18 - Standard Test Method for Measurement of Hydraulic Characteristics of Hydrodynamic Stormwater Separators and Underground Settling DevicesASTM C1745/C1745M-18 - Standard Test Method for Measurement of Hydraulic Characteristics of Hydrodynamic Stormwater Separators and Underground Settling Devices
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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: C1745/C1745M − 18
Standard Test Method for
Measurement of Hydraulic Characteristics of Hydrodynamic
1
Stormwater Separators and Underground Settling Devices
This standard is issued under the fixed designation C1745/C1745M; 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 2. Referenced Documents
2
1.1 This test method concerns measurement of selected 2.1 ASTM Standards:
hydraulic characteristics of hydrodynamic separators and un- D3858 Test Method for Open-Channel Flow Measurement
derground settling devices critical to their function as storm- of Water by Velocity-Area Method
water treatment devices. D4409 Test Method for Velocity Measurements of Water in
Open Channels with Rotating Element Current Meters
1.2 Units tested shall be of a size commonly manufactured,
D5089 Test Method for Velocity Measurements of Water in
not a scale model.
Open Channels with Electromagnetic Current Meters
1.3 As each stormwater treatment device is unique in
D5242 Test Method for Open-Channel Flow Measurement
design, so are its hydraulic characteristics (flow versus head
of Water with Thin-Plate Weirs
and loss coefficients). A sufficient number of accurately mea-
D5389 Test Method for Open-Channel Flow Measurement
sured data points are needed to define properly the hydraulic
by Acoustic Velocity Meter Systems
characteristics of each test unit. Therefore, it is imperative that
D5413 Test Methods for Measurement of Water Levels in
the unit setup and subsequent testing methodologies be well
Open-Water Bodies
defined and executed to ensure accurate flow and elevation
D5640 Guide for Selection of Weirs and Flumes for Open-
data.
Channel Flow Measurement of Water
3
1.4 This test method addresses gravity flow operation only.
2.2 ASME Standard:
It does not address performance of units operating under
MFC-3M Measurement of Fluid Flow in Pipes Using
pressurized conditions.
Orifice, Nozzle, and Venturi
1.5 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in 3. Terminology
each system may not be exact equivalents; therefore, each
3.1 Definitions of Terms Specific to This Standard:
system shall be used independently of the other. Combining
3.1.1 inlet (or outlet) rounding, n—radius of fillet at inside
values from the two systems may result in non-conformance
pipe junction with separator structure.
with the standard.
1.6 This standard does not purport to address all of the
4. Summary of Test Method
safety concerns, if any, associated with its use. It is the
4.1 This test method describes procedures and equipment
responsibility of the user of this standard to establish appro-
required to measure the hydraulic characteristics of hydrody-
priate safety, health, and environmental practices and deter-
namic separators and underground settling devices used for
mine the applicability of regulatory limitations prior to use.
treating stormwater runoff.
1.7 This international standard was developed in accor-
4.2 Other standards that may be useful to reference include:
dance with internationally recognized principles on standard-
Test Methods D3858, D4409, D5089, D5242, D5389, D5413,
ization established in the Decision on Principles for the
Guide D5640, and ASME MFC-3M (see Section 2).
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction of ASTM Committee E64 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Stormwater Control Measures and is the direct responsibility of Subcommittee Standards volume information, refer to the standard’s Document Summary page on
E64.01 on Lab Evaluation. the ASTM website.
3
Current edition approved May 1, 2018. Published May 2018. Originally Available from American Society of Mechanical Engineers (ASME), ASME
approved in 2011. Last previous edition approved in 2011 as C1745/C1745M - 11. International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
DOI: 10.1520/C1745_C1745M-18. www.asme.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C1745/C1745M − 18
5. Significance and Use and flumes, and pr
...

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: C1745/C1745M − 11 C1745/C1745M − 18
Standard Test Method for
Measurement of Hydraulic Characteristics of Hydrodynamic
1
Stormwater Separators and Underground Settling Devices
This standard is issued under the fixed designation C1745/C1745M; 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 concerns measurement of selected hydraulic characteristics of hydrodynamic separators and underground
settling devices critical to their function as stormwater treatment devices.
1.2 Units tested shall be of a size commonly manufactured, not a scale model.
1.3 As each stormwater treatment device is unique in design, so are its hydraulic characteristics (flow versus head and loss
coefficients). A sufficient number of accurately measured data points are needed to define properly the hydraulic characteristics of
each test unit. Therefore, it is imperative that the unit setup and subsequent testing methodologies be well defined and executed
to ensure accurate flow and elevation data.
1.4 This test method addresses gravity flow operation only. It does not address performance of units operating under pressurized
conditions.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.6 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.7 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D3858 Test Method for Open-Channel Flow Measurement of Water by Velocity-Area Method
D4409 Test Method for Velocity Measurements of Water in Open Channels with Rotating Element Current Meters
D5089 Test Method for Velocity Measurements of Water in Open Channels with Electromagnetic Current Meters
D5242 Test Method for Open-Channel Flow Measurement of Water with Thin-Plate Weirs
D5389 Test Method for Open-Channel Flow Measurement by Acoustic Velocity Meter Systems
D5413 Test Methods for Measurement of Water Levels in Open-Water Bodies
D5640 Guide for Selection of Weirs and Flumes for Open-Channel Flow Measurement of Water
3
2.2 ASME Standard:
MFC-3M Measurement of Fluid Flow in Pipes Using Orifice, Nozzle, and Venturi
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 inlet (or outlet) rounding, n—radius of fillet at inside pipe junction with separator structure.
1
This test method is under the jurisdiction of ASTM Committee C27 on Precast Concrete Products and is the direct responsibility of Subcommittee C27.70 on Precast
Concrete Products for Stormwater Management.
Current edition approved Sept. 15, 2011May 1, 2018. Published October 2011May 2018. Originally approved in 2011. Last previous edition approved in 2011 as
C1745/C1745M - 11. DOI: 10.1520/C1745_C1745M-11. 10.1520/C1745_C1745M-18.
2
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 the ASTM website.
3
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
www.asme.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C1745/C1745M − 18
4. Summary of Test Method
4.1 This test method describes procedures and equipment required to measure the hydraulic characteristics of hydrodynamic
separators and underground settling devices used for treating s
...

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SCOPE
1.1 This practice covers procedures for obtaining data concerning toxicity and other effects of a test material to a multi-trophic level freshwater community, independent of the location of the test.  
1.2 These procedures also might be useful for studying the fate of test materials and transformation products, although modifications and additional analytical procedures might be necessary.  
1.3 Modification of these procedures might be justified by special needs or circumstances. Although using appropriate procedures is more important than following prescribed procedures, results of tests conducted using unusual procedures are not likely to be comparable to results of many other tests. Comparison of results obtained using modified and unmodified versions of these procedures might provide useful information concerning new concepts and procedures for conducting multi-trophic level tests.  
1.4 This practice is arranged as follows:    
Section  
Referenced Documents  
2  
Terminology  
3  
Summary of Practice  
4  
Significance and Use  
5  
Apparatus  
6  
Facilities  
6.1  
Container  
6.2  
Equipment  
6.3  
Hazards  
7  
Microcosm Components  
8  
Medium  
8.1  
Medium Preparation  
8.2  
Sediment  
8.3  
Microcosm Assembly  
8.4  
Test Material  
9  
General  
9.1  
Stock Solution  
9.2  
Nutrient Control  
9.3  
Test Organisms  
10  
Algae  
10.1  
Animals  
10.2  
Specificity of Organisms  
10.3  
Sources  
10.4  
Algal Culture Maintenance  
10.5  
Animal Culture Maintenance  
10.6  
Procedure  
11  
Experimental Design  
11.1  
Inoculation  
11.2  
Culling  
11.3  
Addition of Test Material  
11.4  
Measurements  
11.5  
Reinoculations  
11.6  
Analytical Methodology  
12  
Data Processing  
13  
Calculations of Variables from Measurements  
14  
Statistical Analyses ...

  • Standard
    30 pages
    English language
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  • Standard
    30 pages
    English language
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ASTM
ASTM D5886-95(2023)(Guide)
Standard Guide for Selection of Test Methods to Determine Rate of Fluid Permeation Through Geomembranes for Specific Applications

SIGNIFICANCE AND USE
5.1 The principal characteristic of geomembranes is their intrinsically low permeability to a broad range of gases, vapors, and liquids, both as single-component fluids and as complex mixtures of many constituents. As low-permeable materials, geomembranes are being used in a wide range of engineering applications in geotechnical, environmental, and transportation areas as barriers to control the migration of mobile fluids and their constituents. The range of potential permeants is broad and the service conditions can differ greatly. This guide shows users test methods available for determining the permeability of geomembranes to various permeants.  
5.2 The transmission of various species through a geomembrane is subject to many factors that must be assessed in order to be able to predict its effectiveness for a specific service. Permeability measurements are affected by test conditions, and measurements made by one method cannot be translated from one application to another. A wide variety of permeability tests have been devised to measure the permeability of polymeric materials; however, only a limited number of these procedures have been applied to geomembranes. Test conditions and procedures should be selected to reflect actual service requirements as closely as possible. It should be noted that field conditions may be difficult to model or maintain in the laboratory. This may impact apparent performance of geomembrane samples.  
5.3 This guide discusses the mechanism of permeation of mobile chemical species through geomembranes and the permeability tests that are relevant to various types of applications and permeating species. Specific tests for the permeability of geomembranes to both single-component fluids and multicomponent fluids that contain a variety of permeants are described and discussed.
SCOPE
1.1 This guide covers selecting one or more appropriate test methods to assess the permeability of all candidate geomembranes for a proposed specific application to various permeants. The widely different uses of geomembranes as barriers to the transport and migration of different gases, vapors, and liquids under different service conditions require determinations of permeability by test methods that relate to and simulate the service. Geomembranes are nonporous, homogeneous materials that are permeable in varying degrees to gases, vapors, and liquids on a molecular scale in a three-step process by: (1) dissolution in or absorption by the geomembrane on the upstream side, (2) diffusion through the geomembrane, and (3) desorption on the downstream side of the barrier.  
1.2 The rate of transmission of a given chemical species, whether as a single permeant or in mixtures, is driven by its chemical potential or in practical terms by its concentration gradient across the geomembrane. Various methods to assess the permeability of geomembranes to single component permeants, such as individual gases, vapors, and liquids are referenced and briefly described.  
1.3 Various test methods for the measurement of permeation and transmission through geomembranes of individual species in complex mixtures such as waste liquids are discussed.  
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.

  • Guide
    8 pages
    English language
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ASTM
ASTM E3317-22(Specification)
Standard Specification for Silica-Based Sediments for the Evaluation of Stormwater Treatment Devices

SCOPE
1.1 This specification covers the minerology, specific gravity, and particle size distributions (PSDs) of silica-based sediments to be used in the laboratory performance testing of stormwater treatment devices as well as criteria defining acceptable error for the target PSDs.  
1.2 Silica-based sediment is used as a surrogate material for performance and scour determinations for some manufactured stormwater treatment devices such as hydrodynamic separators and filters. These data are used to gain regulatory approvals within certain jurisdictions.  
1.3 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 a policy set by an Authority Having Jurisdiction (AHJ). It is advised to review one or all of the above to ensure compliance.  
1.4 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 be regarded as conforming with this test method.  
1.5 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. Silica-based sediment is considered hazardous under the OSHA Hazard Communications Standard (29 CFR 1910.1200).  
1.6 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.

  • Technical specification
    3 pages
    English language
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