CEN EN 12354-1 Building Acoustics - Estimation of Acoustic Performance of Buildings from the Performance of Elements - Part 1: Airborne Sound Insulation between Rooms
BS EN 12354-2:2000
Building acoustics. Estimation of acoustic performance in buildings from the performance of elements. Impact sound insulation between room
CEN EN 12665 Light and Lighting - Basic Terms and Criteria for Specifying Lighting Requirements
BSI BS EN 12464-1 Light and lighting — Lighting of work places — Part 1: Indoor work places