In this introduction to the subject of noise and its assessment, the author (of Dawe Instruments Ltd) first discusses in general terms the potential effects of excessive noise on personnel in shipbuilding and other industries and on ship's crews, and briefly explains the relevant responsibilities of employers. Some general information is then given on the nature of noise, and on the distinction between impulsive noises and more or less continuous noises. The dB(A) unit of sound-level, and the Leq, which is used to indicate the single equivalent dB(A) value over a period of time, are both explained. Noise criteria and hearing protection are discussed, and the essentials of sound-level meters and Leq meters and their application are examined. The relevance of these matters to noise analysis and noise insulation in ships is briefly considered, and the advisability of assessing potential noise problems at the design stage is mentioned. Order from BSRA as No. 50,007.

  • Corporate Authors:

    Whitehall Technical Press Limited

    29 Palace Street, Westminster
    London SW1,   England 
  • Authors:
    • KING, A
  • Publication Date: 1978-10

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00194232
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: May 26 1979 12:00AM