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ISO 16:1975

Acoustics -- Standard tuning frequency (Standard musical pitch)

This standard has been reviewed and then confirmed in 2011 
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Specifies the frequency for the note A in the treble stave and shall be 440 Hz. Tuning and retuning shall be effected by instruments producing it within an accuracy of 0,5 Hz.


  • Edition: 1 (Monolingual) ICS: 17.140.01
    Status: Published Stage: 90.93 (2011-12-22)
    TC/SC: ISO/TC 43 Number of Pages: 1
  • No revision information available

  • No corrigenda or amendments available

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