Transmission of audio and/or video and related signals using infra-red radiation - Part 3: Transmission systems for audio signals for conference and similar systems (IEC 61603-3:1997); German version EN 61603-3:1998— 10 стр.
Thermal protection and energy economy in buildings - Part 3: Protection against moisture subject to climate conditions - Requirements and directions for design and construction— 77 стр.
Thermal protection and energy economy in buildings - Part 3: Protection against moisture subject to climate conditions - Requirements, calculation methods and directions for planning and construction— 75 стр.
Ventilation and air conditioning - Part 6: Ventilation for residential buildings - General requirements, requirements for design, construction, commissioning and handover as well as maintenance— 108 стр.
