Smoke alarm devices for use in residential buildings, apartments and rooms with similar purposes - Part 2: Requirements to the service provider— 7 стр.
Smoke alarm devices for use in residential buildings, apartments and rooms with similar purposes - Part 1: Planning, installation, use and maintenance— 32 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Electrical installations, safety systems and information technology systems— 20 стр.
