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BS 5857-2.4:1980 Methods for measurement of fluid flow in closed conduits, using tracers. Measurement of gas flow. Transit time method using radioactive tracers
standard by BSI Group, 03/31/1980
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Gives the principle of the measurement method, required tracer conditions, choice of measuring length of conduit, measurement procedure, selection of tracer, estimation of uncertainties in flowrate measurement and flowrate calculation.Cross References:
BS 5857:Section 2.1