ASTM C1745/C1745M-11
Standard Test Method for Measurement of Hydraulic Characteristics of Hydrodynamic Stormwater Separators and Underground Settling Devices
- Standard No.
- ASTM C1745/C1745M-11
- Release Date
- 2011
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM C1745/C1745M-18
- Latest
- ASTM C1745/C1745M-24
- Scope
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.
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 and health practices and determine the applicability of regulatory limitations prior to use.
ASTM C1745/C1745M-11 Referenced Document
- ASTM D3858 Standard Test Method for Open-Channel Flow Measurement of Water by Velocity-Area Method
- ASTM D4409 Standard Test Method for Velocity Measurements of Water in Open Channels with Rotating Element Current Meters
- ASTM D5089 Standard Test Method for Velocity Measurements of Water in Open Channels with Electromagnetic Current Meters
- ASTM D5242 Standard Test Method for Open-Channel Flow Measurement of Water with Thin-Plate Weirs
- ASTM D5389 Standard Test Method for Open-Channel Flow Measurement by Acoustic Velocity Meter Systems
- ASTM D5413 Standard Test Methods for Measurement of Water Levels in Open-Water Bodies
- ASTM D5640 Standard Guide for Selection of Weirs and Flumes for Open-Channel Flow Measurement of Water
ASTM C1745/C1745M-11 history
- 2024 ASTM C1745/C1745M-24 Standard Test Method for Measurement of Hydraulic Characteristics of Hydrodynamic Stormwater Separators and Underground Settling Devices
- 2018 ASTM C1745/C1745M-18 Standard Test Method for Measurement of Hydraulic Characteristics of Hydrodynamic Stormwater Separators and Underground Settling Devices
- 2011 ASTM C1745/C1745M-11 Standard Test Method for Measurement of Hydraulic Characteristics of Hydrodynamic Stormwater Separators and Underground Settling Devices
