Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994)
Acoustics. Noise emitted by machinery and equipment. Measurement of emission sound pressure levels at a work station and at other specified positions. Engineering method in an essentially free field over a reflecting plane— 24 стр.
Machines for the manufacture of constructional products from concrete and calcium-silicate - Safety - Part 1: Common requirements; German version EN 12629-1:2000+A1:2010— 32 стр.