2015LST EN 62368-1-2015 Audio/video, information and communication technology equipment - Part 1: Safety requirements (IEC 62368-1:2014, modified)
2001LST EN 148-3-2001 Respiratory protective devices - Threads for facepieces - Part 3: Tread connection M 45 x 3
LST EN 148-3-2001 Respiratory protective devices - Threads for facepieces - Part 3: Tread connection M 45 x 3 was changed to LST EN 60065-2015 Audio, video and similar electronic apparatus - Safety requirements (IEC 60065:2014, modified).