Die EPA (Environmental Protection Agency) kuendigte neue Normen fuer Lautstaerken von Kompressoren und Lokomotiven an, die ab 1.1.1978 in Kraft treten sollen. Ab dann duerfen fahrbare Kompressoren in den USA in einer Entfernung von 7 m nur Geraeusche von unter 76 dBA, Lokomotiven in 30 m Entfernung Geraeusche von maximal 90 dBA erzeugen. Der jaehrliche Kostenaufwand zur Erfuellung dieser Vorschriften duerfte 4,5 Millionen Dollar betragen. (Buehn)
Noise standards set for locomotives, portable air compressors
US-Geraeuschpegelnorm ab 1978
Machine Design ; 48 , 6 ; 8
1976
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