The objective of this Standard is to describe procedures for periodic testing of octave-band and fractional-octave-band filters that were designed to conform to the class 1 or class 2 specifications given in AS IEC 61260.1:2019.
AS IEC 61260.3:2019 history
2019AS IEC 61260.3:2019 Electroacoustics — Octave‑band and fractional‑octave‑band filters, Part 3: Periodic tests