ISO 2975-3:1976

Measurement of water flow in closed conduits — Tracer methods — Part 3: Constant rate injection method using radioactive tracers

Tracer methods apply to flow measurement in conduits into which a solution can be injected and those cases where effective mixing of this solution with the water flowing in the conduit can be achieved, this last condition being fundamental. Describes the method of constant injection rate using radioactive tracers.