Part1: Basic quantities and assessment procedure. 1. Scope. p. v. 2. Normative references. p.2.-- 3. Terms and definitions. p.2.-- 4. Symbols. p.7.-- 5. Descriptors for environmental noise(s). p.7.-- 6. Noise annoyance. p.8.-- 7. Noise limit requirements. p.10.-- 8. Reporting assessments of environmetal noise(s) and estimation of long-term community annoyance response. p.12.-- Annex A. ( Informative) adjustmenst for sound source rating levels. p.14.-- Annex B. ( Informative) High-energy impulse sounds. p.16.-- Annex C ( Informative) Sounds with strong low-frequency content. p.18.-- Annex D ( Informative) Estimated percentage of a population highly annoyed as a function of adjusted day/ninght sound levels. p.23.-- Annex E ( Informative) annoyance caused by exposure to sound in multi-source envitonments. p.23
