BS EN 133200:1999 Harmonized system of quality assessment for electronic components Sectional specification : Passive filter units for electromagnetic interference suppression (filters for which safety tests are required)
2005BS EN 60939-2:2005 Passive filter units for electromagnetic interference suppression - Sectional specification: passive filter units for which safety tests are appropriate - Test methods and general requirements
1970BS EN 133200:1999 Harmonized system of quality assessment for electronic components Sectional specification : Passive filter units for electromagnetic interference suppression (filters for which safety tests are required)