BS-4142 › Complete Document History
Methods for rating and assessing industrial and commercial sound

Complete Current Edition:
   2014/A1 EDITION - 2014 EDITION WITH AMENDMENT A1 INTERFILED - June 24, 2019

Obsolete Revision Information:
   2014 EDITION - Methods for rating and assessing industrial and commercial sound - Oct. 31, 2014
   1997 EDITION - Method for rating industrial noise affecting mixed residenti - Sept. 15, 1997
   1990 EDITION - Method for rating industrial noise affecting mixed residenti - Nov. 30, 1990