00339nam a22000857a 4500245015000000260006900150300001000219650001400229650001000243  aISO 11690-2:1996-Acoustics - Recommended practice for the design of low-noise workplaces containing machinery - Part 2 : bNoise control measures  aGeneva :bInternational Organization for Standardization,c1996.  a36 p.  aAcoustics  aNoise