Acústica. Curvas normalizadas de igual sonoridad.
ACOUSTICS. NORMAL EQUAL-LOUDNESS LEVEL CONTOURS.
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13.140 / Noise with respect to human beings
CTN 74/SC 1 - Noise
ISO 226:1987 (Identical)
It is cancelled by: UNE-ISO 226:2013
Cancel: UNE 74003:1978
This standard is available in:
Print and digital format
Spanish
