Household and similar electrical appliances - Safety - Part 2-82: Particular requirements for amusement machines and personal service machines (IEC 60335-2-82:2002 + A1:2008) (english version)
Audio/video, information and communication technology equipment -- Part 1: Safety requirements (IEC 62368-1:2014, modified + Cor.:2015) (english version)
Acoustics - Determination of sound immission from sound sources placed closed to the ear - Part 1: Technique using a microphone in a real ear (MIRE technique) (ISO 11904-1:2002)
Safety requirements for electrical equipment for measurement, control, and laboratory use - General requirements for equipment intended to be used in educational establishments by children (IEC/TS 62850:2013) (english version)