MIL-STD-1621 Revision A:1973
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
ACOUSTICAL AND VIBRATIONAL STANDARD REFERENCE QUANTITIES
05-10-1995
Specifies reference quantities used to describe all acoustical and vibrational quantities expressed in terms of levels. Defines acoustical terms and recommends the plotting format for acoustical measurements
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