EN ISO 11690-3:1998 聲學.低噪聲機器工作間設計的推薦實用規程.第3部分:工作室中的聲傳播和噪聲預測.ISO/TR 11690-3-1997
Acoustics - Recommended Practice for the Design of Low-Noise Workplaces Containing Machinery - Part 3: Sound Propagation and Noise Prediction in Workrooms ISO/TR 11690-3:1997