NEN EN 14389-1 : 2015

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
  3.1 structural elements
  3.2 acoustic elements
4 Requirements
  4.1 General
  4.2 Declaration of the expected durability of acoustic performance
  4.3 Assessment of actual acoustic durability by descriptive methods
  4.4 Assessment of actual durability by performance testing in situ
5 Report
  5.1 Reporting Requirement
  5.2 Declaration of expected acoustic durability
  5.3 Assessment of actual acoustic durability by descriptive methods
  5.4 Assessment of actual acoustic durability by performance testing
      in-situ
6 No performance determined (option)
Bibliography

Defines requirements for assessing the working life and provides the relevant exposure conditions.