JT 322-1997 挂桨机船噪声限值及测量方法.pdfVIP

中华人民共和国交通行业标准 JT 322-1997 m o 挂桨机船噪声限值及测量方法 c . Regulation and measurement of noise on board with diesel w engines,change to high gear x f z b w. w w 1997-03-21发布 1997-08-1实施 中华人民共和国交通部 发布 目 次 月}, 舀 1 范围 ··········································································································…… 1 m z 引用标准 ······“·········，，··························································…… 1 o 3 定义 ·······‘·。···········”‘·············，·，，················，·，·。·。·········，，，，，，··········，，，，，········…… 1 c 4挂桨机船噪声限值 ····························‘················，·。··················。···。············.········……1 . 5 噪声测量 ········。·····································…… 2 6城市区域环境噪声 ·2 w 附录A(标准的附录)挂桨机船综合噪声评价值计算方法 · ·‘，.···，，.···，················，’‘·，.·…3 x f z b w. w w 侣绪 .二1 挂桨机船的大量存