UNE-EN ISO 14257:2002 Acoustics. Measurement and parametric description of spatial sound distribution curves in workrooms for evaluation of their acoustical performance. (ISO 14257:2001)
2002UNE-EN ISO 14257:2002 Acoustics. Measurement and parametric description of spatial sound distribution curves in workrooms for evaluation of their acoustical performance. (ISO 14257:2001)