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Standard Test Method for Measurement of Hydraulic Characteristics of Hydrodynamic Stormwater Separators and Underground Settling Devices
Automaticky preložený názov:
Štandardná skúšobná metóda pre meranie hydraulických charakteristík hydrodynamického dažďových vôd separátory a podzemné usadzovaniu zariadenia
NORMA vydaná dňa 15.9.2011
Označenie normy: ASTM C1745/C1745M-11
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.9.2011
Kód tovaru: NS-12357
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
accuracy, bypass flow, calibration, flow, head loss, hydraulic capacity, orifice, slope, velocity, velocity head (head), weir, ICS Number Code 13.060.30 (Sewage water)
Significance and Use | ||||||||||||||||
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. |
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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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||||||
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