Specifies the relations existing between the sound pressure levels and frequencies of pure sinusoidal continuous tones in several conditions. These relations are expressed as curves and represent a fundamental property of the human auditory system.

General information

  • Status :  Withdrawn
    Publication date : 1987-05
  • Edition : 1
    Number of pages : 8
  • :
    ISO/TC 43
  • 13.140
    Noise with respect to human beings

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.