1. IEC 60268-3:2013 Sound system equipment - Part 3: Amplifiers

2. IEC 60268-4:2014 Sound system equipment - Part 4: Microphones

3. IEC 60268-5:2007 Sound system equipment – Part 5: Loudspeakers

4. IEC 60268-6:1971 Sound system equipment - Part 6: Auxiliary passive elements

5. IEC 60268-7:2010/COR1:2012 Corrigendum 1 - Sound system equipment - Part 7: Headphones and earphones

6. IEC 60268-7:2010 Sound system equipment - Part 7: Headphones and earphones

7. IEC 60268-8:1973 Sound system equipment - Part 8: Automatic gain control devices

8. IEC 60268-9:1977 Sound system equipment - Part 9: Artificial reverberation, time delay and frequency shift equipment

9. IEC 60269-1:2014 Low-voltage fuses – Part 1: General requirements

10. IEC 60269-2-1:2002 Low-voltage fuses - Part 2-1: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Sections I to V Examples of types of standardized