Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane— 40 стр.
Acoustics - Recommended practice for the design of low-noise machinery and equipment - Part 2: Introduction to the physics of low-noise design— 50 стр.
Agricultural and forestry machinery and gardening equipment. Pedestrian controlled and hand-held machines. Determination of accessibility of hot surfaces— 16 стр.
