Accoustics—Measurement of sound insulation in buildings and of building elements—Part 3:Laboratory measurements of airborne sound insulation of building elements—Part 3:Laboratory measurements of airborne sound insulation of building elements
This part specifies a laboratory method of measuring the airborne sound insulation of building elements such as walls, floors, doors, windows, facade elements and facades, except those classified as small building elements (for which a measuring method is specified in GB/T 19889.10).
The results obtained can be used to design building elements with appropriate sound insulation properties, to compare the sound insulation properties of building elements and to classify such elements according to their sound insulation properties.
The flanking transmission of test facilities for laboratory measurement is suppressed. Data of measurements made in accordance with the method in this part therefore shall not be applied directly in the field without accounting for other factors affecting sound insulation, especially flanking transmission and loss factor.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Measurement Equipment
5 Test Arrangement
6 Test Procedure and Evaluation
7 Precision
8 Expression of Results
9 Test Report
Appendix A (Normative) Putty for the Mounting of Glazings in the Test Opening
Appendix B (Normative) Measurement of the Sound Reduction Index of the Filler Wall (and Any Flanking Constructions) for Test Openings for Doors, Windows, Glazings and Facade Elements
Appendix C (Normative) Qualification and Positioning of the Sound Source
Appendix D (Informative) Measurement of Flanking Transmission
Appendix E (Informative) Measurement of the Total Loss Factor
Appendix F (Informative) Guidance for Measurements in the Low-frequency Bands
Appendix G (Informative) Form for the Expression of Results
Appendix H (Normative) Installation Guidelines for Lightweight Twin Leaf Partitions
