ISO 3745:1977
ISO 3745:1977


Specifies two laboratory methods. Gives requirements for the test room as well as the source location, operating conditions and instrumentation. Specifies techniques for obtaining an estimate of the surface sound pressure level from which the weighted sound power level of the source and the sound power level in octave or one-third octave bands may be calculated.

General information 

  •  :  Withdrawn
     : 1977-05
  •  : 1
     : 21
  •  : ISO/TC 43/SC 1 Noise
  •  :
    17.140.01 Acoustic measurements and noise abatement in general

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.