BS EN IEC 63522-25:2025

1   Scope

  This part of [IEC 63522](/search?q=IEC%C2%A063522)
   is used for testing along with the appropriate severities and conditions for measurements
  and tests designed to assess the ability of DUTs to perform under expected conditions
  of transportation, storage and all aspects of operational use. 
This document defines a standard test method to check the magnetic interference between
  relays under operating conditions and their influence on other relays in the neighbourhood.