BS-EN-ISO-389-5 › Complete Document History
Acoustics. Reference zero for the calibration of audiometric equipment
Complete Current Edition: |
2006 EDITION - EQUIVALENT THRESHOLD SOUND PRESSURE LEVELS FOR PURE TONES IN - Feb. 28, 2007
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Obsolete Revision Information: |
2001 EDITION - OBSOLETE EDITION - Jan. 1, 2001
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