IEC 61260-2:2016+A1:2017 provides details of the tests necessary to verify conformance to all mandatory specifications given in IEC 61260-1:2014 for octave-band and fractional-octave-band filters. This first edition of IEC 61260-2 (together with IEC 61260-1:2014 and IEC 61260-3:2016), cancels and replaces the first edition of IEC 61260 published in 1995 and its Amendment 1 published in 2001. This edition constitutes a technical revision. This consolidated version consists of the first edition (2001) and its amendment 1 (2017). Therefore, no need to order amendment in addition to this publication.