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![AS ISO 389.1-2007 [ Superseded ]](https://www.normfile.org/2083-large_default/as-iso-3891-2007-superseded-.jpg "AS ISO 389.1-2007 [ Superseded ]")
![AS ISO 389.1-2007 [ Superseded ]](https://www.normfile.org/2083-thickbox_default/as-iso-3891-2007-superseded-.jpg "AS ISO 389.1-2007 [ Superseded ]")
AS ISO 389.1-2007 [ Superseded ]
AS ISO 389.1-2007 Acoustics - Reference zero for the calibration of audiometric equipment, Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
standard by Standards Australia, 02/20/2007
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M00002060
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