Background noise
lUCI requires that the Maximum SPL with Slow time constant complies with NR-30 curve (Lmax,slow < NR30) – this includes any source of noise, including passage of trains or aircrafts lThe Italian Law requires that the noise produced by steady-state equipment (HVAC) has an A-weighted equivalent level less than 35 dB(A) (LA,eq < 35 dBA) lThe UCI requirements are much more stringent than the Italian Law
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