ASTM C1746

Full Name

ASTM C1746 – Standard Test Method for Measurement of Suspended Sediment Removal Efficiency of Hydrodynamic Stormwater Separators and Underground Settling Devices


This test method concerns measurement of the efficiency of hydrodynamic separators and underground settling devices in removing suspended sediment from simulated stormwater runoff under conditions defined herein.

This test method is not intended for use in determining field removal efficiency.


discharge; filters; flow; hydraulic capacity; scour or resuspension; sediments; specific gravity; velocity