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BS 5679 78th Edition, December 29, 1978
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Method (precision) for free-field calibration of one-inch standard condenser microphones by the reciprocity technique
Includes all amendments and changes through Reaffirmation Notice , July 15, 1988
Additional Comments: SAME AS IEC 60486 * W/D S/S BY BS EN 61094-3
Page Count:20
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Method for calibration of microphones used as laboratory standards.