The Director of Public Works may adopt, in writing, such test requirements as he finds necessary to determine the collecting efficiency of various types and kinds of interceptors and to establish the rate of flow, grease- or sand-retention capacity or other rating thereof. The Director of Public Works may revise from time to time, as he finds necessary, such test requirements.
('86 Code, § 16.20.050) (Ord. 2472, passed 9-18-51)