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BS 5857-2.4 80th Edition, March 31, 1980
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Measurement of Fluid Flow in Closed Conduits, Using Tracers Part 2: Measurement of Gas Flow Section 2.4: Transit Time Method Using Radioactive Tracers
Includes all amendments and changes through Reaffirmation Notice , 1986
Additional Comments: SAME AS ISO 4053/4
Page Count:16
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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.