Airborne Noise Limits for Merchant Ships. Recommended Acoustical Criteria to Insure Acceptable Functional and Habitable Environments in Crew Quarters and Work Stations

摘要

Noise criteria are recommended for US merchant ships, based on: (1) known noise effects on personnel, (2) existing noise criteria and standards, and (3) a data base of existing shipboard noise levels, augmented by recent measurements aboard seven ships. The recommended criteria are well within the state of the art, assuming the wearing of ear protectors in machinery spaces, additions of enclosed engine control rooms, or both. A set of criteria with an even lower risk of hearing damage and somewhat better habitability is proposed for new ships. (Author)