Npc-300 - Ontario Air & Noise Practitioners' Group

NPC-300 Impulsive noise limits are changed for less frequent occurrences of impulses; it's a new graduated system. Old guidelines used to define infrequent as less than 20 impulses in under 2 hours. 100 dBAI was overly relaxed.

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Uploaded by: Murkka Svensdottir
Filesize: 9 MB