DIN EN 61260-3:2016-09

This part of IEC 61260 describes procedures for periodic testing of octave-band and fractional-octave-band filters that were designed to the class 1 or class 2 requirements of IEC 61260-1. The aim of the standard is to ensure that periodic testing is performed in a consistent manner by all testing laboratories. The extent of the tests in this part of IEC 61260 is deliberately restricted to the minimum considered necessary for periodic tests. Periodic tests described in this part of IEC 61260 apply to filters for which the model has been, or has not been, pattern approved by an independent testing organization responsible for pattern approvals and in accordance with the test procedures of IEC 61260-2. Periodic tests described in this part of IEC 61260 also apply to filters for which the manufacturer claims conformance to the requirements of IEC 61260-1. Because of the limited extent of the periodic tests, if evidence of pattern approval is not publicly available no general conclusion about conformance to the requirements of IEC 61260-1 can be made, even if the results of the periodic tests conform to all applicable requirements of this part of IEC 61260.