API RP 531M:1980(R1995)
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Measurement of Noise from Fired Process Heaters
06-28-2021
08-01-1995
This test procedure defines (a) the geometrical envelope which is recommended for near-field noise measurement and (b) the analytical methods applicable for computational analysis of the total sound-power level of a fired heater.
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