EN ISO 3382-3:2012

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Single number quantities
5 Measurement conditions
6 Determination of single number quantities
7 Test report
Annex A (informative) - Examples of target values
        for evaluation of measurement data
Annex B (informative) - Relation between speech
        transmission index and work performance
Bibliography

This document specifies methods for the measurement of room acoustic properties in open plan spaces, with or without furnishing. It describes measurement procedures, the apparatus needed, the coverage required, and the method for evaluating the data and presenting the test report. The measurement results can be used to evaluate room acoustic properties in various open plan spaces, such as in open plan schools, call centres, open plan offices of different sizes. This standard is not meant for ordinary rooms, concert halls and other performance spaces.